HomeMy WebLinkAbout033000 cast in place concrete.pdf Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 1
SECTION 033000 - CAST-IN-PLACE CONCRETE
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section includes cast-in-place concrete, including formwork, reinforcement, concrete materials,
mixture design, placement procedures, and finishes, for the following:
1. Footings.
2. Foundation walls.
3. Slabs-on-grade.
4. Suspended slabs.
5. Concrete toppings.
B. Related Sections
1. Section 012200 “Unit Prices” for concrete slab replacement.
2. Section 033530 “Polished Concrete Floor Finish” for polished concrete requirements.
3. Section 079200 “Joint Sealants” for joint fillers and sealants.
4. Section 312000 "Earth Moving" for drainage fill under slabs-on-grade.
5. Section 321313 "Concrete Paving" for concrete pavement and walks.
6. Section 321314 "Exposed Aggregate Concrete Paving" for decorative concrete pavement
and walks.
1.3 DEFINITIONS
A. Cementitious Materials: Portland cement alone or in combination with one or more of blended
hydraulic cement, fly ash and other pozzolans, ground granulated blast-furnace slag, and silica
fume; subject to compliance with requirements.
1.4 ACTION SUBMITTALS
A. Product Data: For each type of product indicated.
B. LEED Submittals:
1. Product Data for Credit MR 4: For products having recycled content, documentation
indicating percentages by weight of postconsumer and preconsumer recycled content. Include
statement indicating cost for each product having recycled content.
2. Product Data for Credit IEQ 4.3: For liquid floor treatments and curing and sealing
compounds, documentation including printed statement of VOC content.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 2
3. Design Mixtures for Credit ID 1.1: For each concrete mixture containing fly ash as a
replacement for portland cement or other portland cement replacements, and for equivalent
concrete mixtures that do not contain portland cement replacements.
C. Design Mixtures: For each concrete mixture. Submit alternate design mixtures when
characteristics of materials, Project conditions, weather, test results, or other circumstances
warrant adjustments.
1. Indicate amounts of mixing water to be withheld for later addition at Project site.
D. Steel Reinforcement Shop Drawings: Placing drawings that detail fabrication, bending, and
placement. Include bar sizes, lengths, material, grade, bar schedules, stirrup spacing, bent bar
diagrams, bar arrangement, splices and laps, mechanical connections, tie spacing, hoop spacing,
and supports for concrete reinforcement.
E. Construction Joint Layout: Indicate proposed construction joints required to construct the
structure.
1. Location of construction joints is subject to approval of the Architect.
1.5 INFORMATIONAL SUBMITTALS
A. Welding certificates.
B. Material Certificates.
C. Material Test Reports: For the following, from a qualified testing agency, indicating compliance
with requirements:
1. Aggregates.
D. Floor surface flatness and levelness measurements indicating compliance with specified
tolerances.
E. Field quality-control reports.
F. Minutes of preinstallation conference.
1.6 QUALITY ASSURANCE
A. Codes and Standards: Comply with provisions of the following codes, Specifications, and
standards, except where more stringent requirements are shown or specified:
1. American Concrete Institute (ACI) 301, "Specifications for Structural Concrete for
Buildings."
2. ACI 318, "Building Code Requirements for Reinforced Concrete."
3. Concrete Reinforcing Steel Institute (CRSI) "Manual of Standard Practice."
B. Concrete Testing: Conform to requirements of Section 014000 and this section.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 3
C. ACI Flatwork Certification: Prepare, place and finish all interior and exterior slabs in the
presence of and under the direction of an ACI Certified Concrete Flatwork Finisher.
D. Pre-Concrete Conference: Conduct conference at Project Site to comply with requirements of
Division 1 Section "Project Meetings" and the following:
1. At least 14 days prior to placing concrete, conduct a meeting to review detailed
requirements for concrete design mixes and to determine procedures for satisfactory
concrete operations. Review requirements of submittals, status of coordinating work,
and availability of materials. Establish preliminary work progress schedule and
procedures for materials inspection, testing, and certifications. Require representatives
of each entity directly concerned with cast-in-place concrete to attend conference,
including, but not limited to, the following:
a. Subcontractor's Representative.
b. Agency responsible for concrete design mixes.
c. Agency responsible for field quality control.
d. Ready-mix concrete producer.
e. Construction Representative.
E. Pre-Concrete Slab Conference: Conduct conference at Project Site to comply with
requirements of Division 1 Section "Project Meetings" and the following:
1. At least 7 days prior to placing concrete, conduct a meeting to review detailed
requirements for concrete design mixes for slabs and exterior flatwork to determine
procedures for satisfactory concrete placement, finishing and curing operations. Review
requirements of submittals, subgrade compaction and moisture testing, status of
coordinating work, and availability of materials. Establish preliminary work progress
schedule and procedures for materials inspection, testing, and certifications. Review
locations of construction joints, control joints and isolation joints in slabs. Require
representatives of each entity directly concerned with concrete slabs to attend
conference, including, but not limited to, the following:
a. Concrete Subcontractor's Representative.
b. Floor Polishing Subcontractor’s Representative.
c. Agency responsible for concrete design mixes.
d. Agency responsible for field subgrade compaction and moisture testing.
e. Agency responsible for field quality control.
f. Ready-mix concrete producer.
g. ACI Certified Concrete Flatwork Finisher.
h. Construction Representative.
1.7 PROJECT CONDITIONS
A. Apply surface evaporation retardant to slab surface when water loss reaches .15 lbs of water
loss per square foot per hour as determined in ACI 308.
1.8 ENVIRONMENTAL CONSIDERATIONS
A. Give preference to materials with higher recycled content.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 4
B. Contractor is to track material value of each product with recycled content and provide
documentation identifying both pre-consumer (P1) and post-consumer (PC) recycled content.
PART 2 - PRODUCTS
2.1 GENERAL
A. Give preference to materials with higher recycled content and that have been manufactured and
extracted as close as possible to the project.
2.2 FORM MATERIALS
A. Forms for Exposed Finish Concrete: Plywood, metal, metal-framed plywood faced, or other
acceptable panel-type materials to provide continuous, straight, smooth, exposed surfaces.
Furnish in largest practicable sizes to minimize number of joints [and to conform to joint
system shown on drawings].
1. Use plywood complying with U.S. Product Standard PS-1 "B-B (Concrete Form)
Plywood," Class I, Exterior Grade or better, mill-oiled and edge-sealed, with each piece
bearing legible inspection trademark.
B. Forms for Unexposed Finish Concrete: Plywood, lumber, metal, or another acceptable
material. Provide lumber dressed on at least two edges and one side for tight fit.
C. Form Release Agent: Provide commercial formulation form release agent with a maximum of
350 g/L volatile organic compounds (VOCs) that will not bond with, stain, or adversely affect
concrete surfaces and will not impair subsequent treatments of concrete surfaces.
D. Form Ties: Factory-fabricated, adjustable-length, removable or snap-off metal form ties
designed to prevent form deflection and to prevent spalling of concrete upon removal.
Provide units that will leave no metal closer than 1 inches to the plane of the exposed concrete
surface.
1. Provide ties that, when removed, will leave holes not larger than 1 inch (25 mm) in
diameter in the concrete surface.
2.3 REINFORCING MATERIALS
A. Reinforcing Bars: ASTM A 615, Grade 60, deformed.
B. Steel Wire: ASTM A 82, plain, cold-drawn steel.
C. Welded Wire Fabric: ASTM A 185, welded steel wire fabric.
D. Synthetic Fiber: Fibrillated polypropylene fibers engineered and designed for use in concrete
pavement, complying with ASTM C 1116, Type 111, ½ to 1-1/2 inches long.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 5
1. Available Products:
a. Fibrillated Fibers:
1. Euclid Chemical Company (The); Fiberstrand F.
2. FORTA Corporation; Forta.
3. Grade Construction Products, W.R Grace & Co.; Grace Fibers.
4. SI Concrete Systems; Fibermesh.
E. Supports for Reinforcement: Bolsters, chairs, spacers, and other devices for spacing,
supporting, and fastening reinforcing bars and welded wire fabric in place. Use wire bar-type
supports complying with CRSI specifications.
1. For slabs-on-grade, use supports with sand plates or horizontal runners where base
material will not support chair legs. Type used shall not perforate vapor retarder.
2. For slabs on metal deck, use bright basic (CRSI, Class 3) continuous mesh support or
reinforcing bar chairs for type of reinforcing required.
2.4 CONCRETE MATERIALS
A. Portland Cement: ASTM C 150, Type I or II.
1. Use one brand of cement throughout Project.
B. Fly-ash: ASTM C 618, Class C or F
1. Use of Fly-ash in concrete mix for slab-on-grade is strictly prohibited.
2. Use up to 25% fly-ash in substitution for Portland cement for all concrete in non-slab on
grade applications.
C. Concrete Aggregates: Shall conform to the requirements of ASTM C-33.
1. Fine Aggregate: Sand shall consist of hard, tough and preferably siliceous material,
clean, free from mineral or other coatings, soft particles, clay, loam or other deleterious
matter.
2. Coarse Aggregate: Crushed stone or gravel, having clean, hard, durable, uncoated
particles, free from deleterious matter. The 1-1/2" aggregate shall conform to gradation
#467 and the 3/4" aggregate to size #67 in Table II of ASTM C-33. 3/4" aggregate
shall be the minimum permissible size used, unless required for structural clearances
between reinforcing bars or between bars and the forms require smaller aggregate size.
Clearances requiring smaller aggregate size shall be submitted to the Construction
Representative for verification and approval.
D. Water: Potable and complying with ASTM C 94.
E. Admixtures, General: Provide concrete admixtures that contain not more than 0.01 percent
chloride ions.
F. Air-Entraining Admixture: ASTM C 260, certified by manufacturer to be compatible with
other required admixtures.
G. Mid-Range Water-Reducing Admixture: ASTM C 494, Type A.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 6
H. High-Range Water-Reducing Admixture: ASTM C 494, Type F or G.
I. Accelerating Admixture: ASTM C 494, Type C.
J. Retarding Admixture: ASTM C 494, Type D.
2.5 RELATED MATERIALS
A. Isolation Joint: 2 pound minimum density closed cell polyethylene with 3/8" deep top strip
off to allow installation of joint sealant; 3/8 inch thickness by full depth of slab.
1. Sonolastic Expansion-Joint Filler; Sonneborn Products, BASF Chemical Company.
2. Deck-O-Foarml W.R. Meadows, Inc.
B. Key Joint System: Manufactured 24 gage hot dipped galvanized steel system, complete, by
one of the following manufacturers.
1. “Key-Loc” joint by Form-A-Key Products, Louisville, KY.
2. “Quick-Key” by Bometals, Inc., Powder Springs, GA.
C. Screed Key: 24 gage, hot dipped galvanized, hemmed edge, 16 gage interlocking support
stakes.
1. Ultra-Key, Bometals, inc. or approved equal.
D. Recessed Floor Pits: Craigg Mfg., (717) 733-1412; Fiberglass pit liner with gasketed ledge
Model ADL; size as indicated on the drawings; 3/8 inch thick aluminum tread-plate cover;
Minimum 150 psf capacity for 2 foot by 4 foot cover.
E. Flat Dowel System: Speed plate as manufactured by Greenstreak Group, Inc. (800) 325-9504;
¼: x 4” width x 6” deep speed plate spaced at 30” on center at all slab-on-grade construction
joints, unless noted otherwise on plans.
F. Vapor Retarder (General Floor Areas): Provide water-resistant barrier consisting of high
density, cross laminated polyethylene that is resistant to deterioration when tested according
to ASTM E 154.
1. Dura-Skrim 12BBR
2. Stego Wrap Class C
G. Interior Curing Compound: Water based dissipating curing compound, complying with
ASTM C309, Type 1 or 1D, Class A.
1. Kurex DR Vox; Euclid Chemical Company
2. Conspec Cure & Seal WB; Symons Corporation
3. Kure-N-Seal WB; BASF Chemical Company
4. Enviroseal 20; BASF Chemical Company
H. Exterior Curing Compound: ProSoCo, Inc., Cur to Spec. MS, non-yellowing when exposed
to sunlight.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 7
I. Evaporation Control: Monomolecular film-forming compound applied to exposed concrete
slab surfaces for temporary protection from rapid moisture loss.
1. Eucobar; Euclid Chemical Co.
2. E-Con; L&M Construction Chemicals, Inc.
3. Confilm; Master Builders, Inc.
J. Interior Sealer: Ashford Formula manufactured by Curecrete Chemical Company.
K. Non-Shrink Grout: "N-S Grout" by the Euclid Chemical Company; "Master-Flow 928"
(non-metallic) by Master Builders, Five Star Grout, Dayton Superior Sure Grip Grout, or Sika
Grout 212. The grout shall conform to CRD C-621, type b or d.
L. Floor Slab Trench Patching Material: Pre-blended hydraulic cement, sand, and 3/8 inch stone,
with rapid curing for placement of flooring materials within 24 hours. Job site blended
material consisting of 1 part CTS hydraulic cement, 2 parts coarse washed aggregate 3/8 to
3/4 inch size, and 2 parts fine aggregate mortar sand will be permitted.
1. Rapid Set Concrete Mix, CTS Cement Manufacturing (800) 929-3030.
M. Underlayment Compound (under floor covering): Free-flowing, self-leveling, pumpable,
cement-based compound for applications from 1 inch thick to feathered edges. Apply primer
as provided by manufacturer.
1. K-15 with P-51 primer; Ardex, Inc.
2. Levelex with Levelex Primer; L&M Construction Chemicals, Inc.
3. Silflo 220 with Silflo Primer; Silpro Masonry Sytems, Inc.
4. Thoro Underlayment Self-Leveling with Thoro Primer 800; Thoro System Products.
N. Bonding Agent: Polyvinyl acetate or acrylic base.
1. Acrylic or Styrene Butadiene:
a. Day-Chem Ad Bond; Dayton Superior Corp.
b. SBR Latex; Euclid Chemical Co.
c. Daraweld C; W.R. Grace & Co.
d. Hornweld; Tamms Industries, Inc.
e. Everbond; L&M Construction Chemicals, Inc.
f. Acryl -Set; Master Builders Inc.
O. Epoxy Adhesive: ASTM C 881, two-component material suitable for use on dry or damp
surfaces. Provide material type, grade, and class to suit Project requirements.
1. Euco Epoxy System #452; Euclid Chemical Co.
2. DuralBond; Tamms Industries, Inc.
3. Concresive Standard Liquid, Master Builders, Inc.
4. Sikadur 32 Hi-Mod, Sika Corp.
2.6 PROPORTIONING AND DESIGNING MIXES
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 8
A. Prepare design mixes for each type and strength of concrete by either laboratory trial batch or
field experience methods as specified in ACI 301. For the trial batch method, use an
independent testing agency acceptable to Construction Representative for preparing and
reporting proposed mix designs.
1. Do not use the same testing agency for field quality control testing.
B. Submit written reports of each proposed mix for each class of concrete at least 15 days prior
to start of Work. Do not begin concrete production until proposed mix designs have been
reviewed.
C. Cementitious Materials: Limit percentage, by weight, of cementitious materials other than
portland cement in concrete as follows:
1. Fly Ash: 25 percent
D. Design Mixes to Provide Normal Weight Concrete with the Following Properties as Indicated
on Drawings and Schedules:
1. Reinforced Wall, Footings, Utility Encasements, Bollard and Rail Post Encasement,
Interior Pads: 3500-psi, 28-day compressive strength; water-cement ratio, 0.52
maximum (air-entrained).
2. Interior Slabs: 4000-psi, 56 -day compressive strength; water-cement ratio, 0.48
maximum, non-air-entrained, minimum 3/4 inch coarse aggregate, synthetic micro-fiber
dispense at manufacturer’s prescribed rate, but not less than 1.5 lb./cu.yd.
3. Exterior Slabs, Platforms, Pads, Steps, Pole Bases and Walks: 4500-psi, 28-day
compressive strength; water-cement ratio, 0.45 maximum, air-entrained, minimum 3/4
inch (19 mm) coarse aggregate.
4. Where coarse aggregate size is not specified, the nominal maximum size coarse
aggregate size shall be not larger than:
a. 1/5 the narrowest dimension between sides of forms, nor;
b. 1/3 the depth of slabs, nor;
c. 3/4 the minimum clear spacing between individual reinforcing bars or wires,
bundles of bars, or prestressing tendons or ducts.
E. Slump Limits: Proportion and design mixes to result in concrete slump at point of placement
as follows:
1. Ramps and sloping surfaces: Not more than 3 inches.
2. Slabs: Not more than 4.5 inches.
3. Reinforced foundation systems: Not less than 2 inch and not more than 5 inches.
4. Concrete containing high-range water-reducing admixture (superplasticizer): Not more
than 8 inches after adding admixture to site-verified 2-to-3-inch slump concrete. Plant-
added high-range water-reducing admixture is subject to approval by Construction
Representative. Use of high-range water-reducing admixture is prohibited for slabs.
5. Other concrete: Not more than 4 inches.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 9
F. Adjustment to Concrete Mixes: Mix design adjustments may be requested by Subcontractor
when characteristics of materials, job conditions, weather, test results, or other circumstances
warrant, as accepted by Construction Representative. Laboratory test data for revised mix
design and strength results must be submitted to and accepted by Construction Representative
before using in Work.
2.7 ADMIXTURES
A. Use mid-range water-reducing admixture for all concrete. Add admixture at manufacturer's
prescribed rate.
B. Accelerating admixture may be used in concrete slabs placed at ambient temperatures below
50°F (10°C).
C. Retarding admixture may be used in concrete slabs placed at ambient temperatures above
80°F (27°C).
D. High-range water-reducing admixture may be used for reinforced foundation systems. High-
range water-reducing admixture is not permitted for use in slabs.
E. The approved air-entraining admixture shall be used in concrete exposed to weather. Add air-
entraining admixture at manufacturer's prescribed rate to result in concrete at point of
placement having total air content with a tolerance of plus or minus 1-1/2 percent within the
following limits:
1. Concrete structures and slabs exposed to freezing and thawing, deicer chemicals, or
hydraulic pressure:
a. 5.0 percent for 1-1/2-inch maximum aggregate.
b. 6.0 percent for 3/4-inch maximum aggregate.
c. 7.0 percent for 3/8-inch maximum aggregate.
2. Concrete to receive a surface hardener: 2 to 3 percent air.
F. Use admixtures for water reduction and set accelerating or retarding in strict compliance with
manufacturer's directions.
2.8 CONCRETE MIXING
A. Job-Site Mixing: Mix concrete materials in appropriate drum-type batch machine mixer. For
mixers of 1 cu. yd. or smaller capacity, continue mixing at least 1-1/2 minutes, but not more
than 5 minutes after ingredients are in mixer, before any part of batch is released. For mixers
of capacity larger than 1 cu. yd., increase minimum 1-1/2 minutes of mixing time by 15
seconds for each additional cu. yd.
1. Provide batch ticket for each batch discharged and used in the Work, indicating Project
identification name and number, date, mix type, mix time, quantity, and amount of
water introduced.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 10
2. Mix the concrete in quantities required for immediate use, and any which has developed
initial set, or which does not reach the forms within 1-1/2 hours after water has been
added, shall not be used.
3. Mix all concrete by machine, having a capacity of not less than "one bag batch" of
concrete.
4. Ready-mixed concrete shall be mixed and delivered by the means and standards set
forth by ASTM C-94.
5. When concrete is mixed in a truck mixer loaded to its maximum rated capacity, the
number of revolutions of the drums or blades at mixing speed shall be not less than 70
nor more than 100.
6. When a truck mixer or agitator is used for transportation, complete placement within
1-1/2 hours or before the drum has revolved a total of 300 revolutions, whichever comes
first, after the introduction of mixing water.
7. Measurements:
a. By Weight: Only weighing equipment approved by the Construction
Representative shall be allowed. The equipment shall be platform-operated, and
the weighing beam or dial shall be in full view of the operator. The equipment
shall be capable of measurement within + 1% for the cement and water, + 2% for
the aggregates, and + 3% for the admixtures. The cement and aggregates must be
weighed by the weight.
b. By Volume: The admixtures shall be measured by volume. Water may be
measured by weight or volume.
c. All Methods: The methods of measuring concrete materials shall be such that the
proportion of water to cement can be accurately controlled during the progress of
the Work and easily checked at any time.
B. Ready-Mixed Concrete: Comply with requirements of ASTM C 94, and as specified.
1. When air temperature is between 85°F (30°C) and 90°F (32°C), reduce mixing and
delivery time from 1-1/2 hours to 75 minutes, and when air temperature is above 90°F
(32°C), reduce mixing and delivery time to 60 minutes.
2. Water may be added to the mix at the site, once only per ASTM C94. The water added
shall not cause the specified slumps to be exceeded, and shall not exceed the maximum
water cement ratio.
C. When air temperature has fallen to or is expected to fall between 40°F (4°C) and 30°F (-1°C),
uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature
of not less than 60°F (16°C) and not more than 80°F (27°C) at point of placement. When air
temperature has fallen to or is expected to fall below 30°F (-1°C), uniformly heat water and
aggregates before mixing to obtain a concrete mixture temperature of not less than 65°F
(18°C) and not more than 80°F (27°C) at point of placement.
1. Do not use frozen materials or materials containing ice or snow.
2. Do not use calcium chloride, salt, or other materials containing antifreeze agents.
D. When Hot Weather Conditions Cause Concrete Temperatures to Exceed 90°F (32°C) Perform
the Following Procedures:
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 11
1. Cool ingredients before mixing to maintain concrete temperature at time of placement to
below 90°F (32°C). Mixing water may be chilled or chopped ice may be used to control
temperature, provided water equivalent of ice is calculated to total amount of mixing
water. Using liquid nitrogen to cool concrete is Subcontractor's option.
2. Use water-reducing retarding admixture when required by high temperatures, low
humidity, or other adverse placing conditions, as acceptable to Construction
Representative.
PART 3 - EXECUTION
3.1 GENERAL
A. Coordinate the installation of vapor retarder/barrier, joint materials, and other related
materials with earthwork, placement of forms and reinforcing steel.
3.2 FORMS
A. General: Design, erect, support, brace, and maintain formwork to support vertical, lateral,
static, and dynamic loads that might be applied until concrete structure can support such
loads. Construct formwork so concrete members and structures are of correct size, shape,
alignment, elevation, and position. Maintain formwork construction tolerances and surface
irregularities complying with ACI 347 limits and as follows:
1. Surfaces exposed to view: Class A tolerance, checked with 5 foot template, except
gradual irregularities not to exceed 1/4 inch and abrupt surface irregularities not to
exceed 1/8 inch.
2. Other concrete surfaces: Provide Class C tolerances checked with 5 foot template, with
gradual irregularities not to exceed 1/2 inch and abrupt surface irregularities not to
exceed 1/4 inch.
3. Variation of Linear Building Line: For position shown in plan, do not exceed 1/2 inch
in 20 feet, nor 3/4 inch in 40 feet or more.
4. Variation of Cross-Sectional Dimension (thickness): 12 inch dimension or less, do not
exceed 3/8 inch greater nor 1/4 inch less than indicated. 12 inch dimension but not over
3 foot dimension, do not exceed 1/2 inch greater nor 3/8 inch less than indicated.
5. See Article 3.6 of this section regarding anchor bolt location tolerances.
B. Construct forms to sizes, shapes, lines, and dimensions shown and to obtain accurate
alignment, location, grades, level, and plumb work in finished structures. Provide for
openings, offsets, sinkages, keyways, recesses, moldings, rustications, reglets, chamfers,
blocking, screeds, bulkheads, anchorages and inserts, and other features required in the Work.
Use selected materials to obtain required finishes. Solidly butt joints and provide backup at
joints to prevent cement paste from leaking.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 12
C. Fabricate forms for easy removal without hammering or prying against concrete surfaces.
Provide crush plates or wrecking plates where stripping may damage cast concrete surfaces.
Provide top forms for inclined surfaces where slope is too steep to place concrete with bottom
forms only. Kerf wood inserts for forming keyways, reglets, recesses, and the like for easy
removal.
D. Chamfer exposed corners and edges of beams, columns and partitions 1" unless otherwise
noted, using wood, metal, PVC, or rubber chamfer strips fabricated to produce uniform
smooth lines and tight edge joints.
E. Provisions for Other Trades: Provide openings in concrete formwork to accommodate work
of other trades. Determine size and location of openings, recesses, and chases from trades
providing such items. Accurately place and securely support items built into forms.
F. Cleaning and Tightening: Thoroughly clean forms and adjacent surfaces to receive concrete.
Remove chips, wood, sawdust, dirt, or other debris just before placing concrete. Retighten
forms and bracing before placing concrete, as required, to prevent mortar leaks and maintain
proper alignment.
3.3 VAPOR RETARDER INSTALLATION
A. Vapor Retarder: Place retarder over aggregate in largest practical sizes to have as few joints
as possible. Laps shall be a minimum of 6 inches and in direction of pour. Seal joints with
continuous strips of 2 inch wide poly tape. Take care not to unnecessarily puncture retarder.
Lap retarder up wall to top of the slab and seal.
3.4 PLACING REINFORCEMENT
A. General: Comply with Concrete Reinforcing Steel Institute's recommended practice for
"Placing Reinforcing Bars," for details and methods of reinforcement placement and supports
and as specified.
1. Avoiding cutting or puncturing vapor retarder/barrier during reinforcement placement
and concreting operations. Repair damages before placing concrete.
B. Clean reinforcement of loose rust and mill scale, earth, ice, and other materials that reduce or
destroy bond with concrete.
C. Accurately position, support, and secure reinforcement against displacement. Locate and
support reinforcing by metal chairs, runners, bolsters, spacers, and hangers, as approved by
Construction Representative.
D. Place reinforcement to maintain minimum coverages as indicated for concrete protection.
Arrange, space, and securely tie bars and bar supports to hold reinforcement in position
during concrete placement operations. Set wire ties so ends are directed into concrete, not
toward exposed concrete surfaces.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 13
E. Install welded wire fabric in lengths as long as practicable. Lap adjoining pieces at least one
full mesh and lace splices with wire. Offset laps of adjoining widths to prevent continuous
laps in either direction. Support welded wire fabric with continuous mesh supports, spaced to
hold welded wire fabric in proper position.
F. Reinforce stair pans with strips of 3" x 6" #10 wire mesh or two layers 6" x 6" #10 mesh
overlapped, full width and depth of pan.
3.5 JOINTS
A. Construction Joints: Locate and install screed key construction joints so they do not impair
strength or appearance of the structure, as acceptable to Construction Representative.
B. Provide keyways at least 1-1/2 inches deep in construction joints in walls and between walls
and footings.
C. Place construction joints perpendicular to main reinforcement. Continue reinforcement across
construction joints except as indicated otherwise. Do not continue reinforcement through
sides of strip placements.
D. For foundations, use bonding agent on existing concrete surfaces that will be joined with fresh
concrete.
E. Isolation Joints in Slabs-on-Grade: Construct isolation joints in slabs-on-grade at points of
contact between slabs-on-grade and vertical surfaces, such as column pedestals, foundation
walls, grade beams, masonry walls and other locations, as indicated. Install isolation joint
material full depth of slab edges, between slab and abutting surfaces. Attach with edge tape.
Remove top strip of isolation joint and fill with sealant.
1. Joint fillers and sealants are specified in Section 079000 - Joint Sealants.
F. Contraction (Control) Joints in Slabs-on-Grade: Construct contraction joints in slabs-on-
grade to form panels of patterns as specified and shown on approved joint layout submittal.
1. Insert plastic strip with depth equal to minimum ¼ slab depth, with removable cap on
top to form groove for joint sealant.
a. Acceptable product and manufacturer:
b. Vinylex Removable Cap Strip, Vinylex Corp., Knoxville, TN.
c. Void-cap, Southern Metal and Plastics Products, Olive Branch, MS.
d. Contraction joints shall be placed in accordance with approved Shop Drawings,
with a maximum panel area as specified below. The panel shall be as nearly
square as possible. If panel cannot be square, do not exceed panel length to panel
width ratio of 1 to 1-1/2. Conform to bay spacing wherever possible (at column
centerlines, half bays, third bays, one quarter bays, or equal division to meet the
specified spacing requirements).
2. Saw cut control joints in concrete to detailed layout. Use sawcuts ¼ inch wide by ¾
inch (19 mm) of slab depth or depth equal to the largest coarse aggregate size,
whichever is greater.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 14
a. Saw control joints with Sof-Cut Model GS-1000 (800) 776-3328 saw,
immediately after final troweling with cutting completed within 2 hours after
final pass of trowel. Vacuum saw cut concrete spoils from floor surface
immediately behind the saw cutting operations.
b. Saw shall be designed for early entry, dry cutting with mechanical depth control
sensor skid plate to prevent raveling of the edges of the saw cut.
3. Contraction joints shall be placed in accordance with approved Shop Drawings, with a
maximum panel area as specified below. The panel shall be as nearly square as
possible. If panel cannot be square, do not exceed panel length to panel width ratio of 1
to 1-1/2. Conform to bay spacing wherever possible (at column centerlines, half bays,
third bays, one quarter bays, or equal division to meet the specified spacing
requirements).
4. Locate contraction joints in slabs on grade as indicated on plan and in accordance with
the following maximum spacing;
a. 4 to 6 inches thick: 15 feet, maximum area with controls joint 230 square feet.
b. 6 1/4 to 7 inches thick: 20 feet.
c. 7 1/4 to 8 inches thick: 20 feet.
5. Joint fillers and sealants are specified in Section 07900 - Joint Sealants.
G. Joints in Sidewalks and Exterior Flatwork: Saw cut control joints in concrete to detailed
layout. Use sawcuts ¼ inch wide by ¾ inch of slab depth or depth equal to the largest coarse
aggregate size, whichever is greater.
1. Saw control joints with Sof-Cut Model GS-1000 (800) 776-3328 saw, immediately after
final troweling with cutting completed within 2 hours after final pass of trowel.
Vacuum saw cut concrete spoils from floor surface immediately behind the saw cutting
operations.
a. Saw shall be designed for early entry, dry cutting with mechanical depth control
sensor skid plate to prevent raveling of the edges of the saw cut.
2. Contraction joints shall be placed in accordance with approved Shop Drawings, with a
maximum panel area as specified below. The panel shall be as nearly square as
possible. If panel cannot be square, do not exceed panel length to panel width ratio of 1
to 1-1/2. Conform to bay spacing wherever possible (at column centerlines, half bays,
third bays, one quarter bays, or equal division to meet the specified spacing
requirements).
3. Saw cut slabs on grade in accordance with the following maximum spacing;
a. 4 to 6 inches thick: 20 feet, maximum area with controls joint 400 square feet.
b. 6 1/4 to 7 inches thick: 20 feet.
c. 7 1/4 to 8 inches thick: 20 feet.
4. Joint fillers and sealants are specified in Section 07900 - Joint Sealants.
3.6 INSTALLING EMBEDDED ITEMS
A. Locate and set anchor rods for structural steel. Tolerance allowances shall be in accordance
with AISC Code of Standard Practice for Buildings and Bridges, Installation of Bolts and
Embedded Items.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 15
B. General: Set and build into formwork anchorage devices and other embedded items required
for other work that is attached to or supported by cast-in-place concrete. Use setting
drawings, diagrams, instructions, and directions provided by suppliers of items to be attached.
C. Forms for Slabs: Set edge forms, bulkheads, and screed strips for slabs to achieve required
elevations and contours in finished surfaces.
1. Where slabs are thickened, the subgrade shall be sloped no greater than 1 to 20,
thickness change to slope length ratio.
D. Recessed Floor Pits: Set pits level to required elevation, allowing and properly secure to
prevent displacement.
3.7 PREPARING FORM SURFACES
A. General: Coat contact surfaces of forms with an approved, nonresidual, low-VOC, form-
coating compound before placing reinforcement.
B. Do not allow excess form-coating material to accumulate in forms or come into contact with
in-place concrete surfaces against which fresh concrete will be placed. Apply according to
manufacturer's instructions.
1. Coat steel forms with a nonstaining, rust-preventative material. Rust-stained steel
formwork is not acceptable.
3.8 CONCRETE PLACEMENT
A. Inspection: Before placing concrete, inspect and complete formwork installation, reinforcing
steel, and items to be embedded or cast in. Notify other trades to permit installation of their
work.
B. General: Comply with ACI 304, "Guide for Measuring, Mixing, Transporting, and Placing
Concrete," and as specified.
1. Concrete trucks are not permitted to enter the building.
C. Deposit concrete continuously or in layers of such thickness that no new concrete will be
placed on concrete that has hardened sufficiently to cause seams or planes of weakness. If a
section cannot be placed continuously, provide construction joints as specified. Deposit
concrete to avoid segregation at its final location.
D. Placing Concrete in Forms: Deposit concrete in forms in horizontal layers no deeper than 24
inches and in a manner to avoid inclined construction joints. Where placement consists of
several layers, place each layer while preceding layer is still plastic to avoid cold joints.
1. Consolidate placed concrete by mechanical vibrating equipment supplemented by hand-
spading, rodding, or tamping. Use equipment and procedures for consolidation of
concrete complying with ACI 309.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 16
2. Do not use vibrators to transport concrete inside forms. Insert and withdraw vibrators
vertically at uniformly spaced locations no farther than the visible effectiveness of the
machine. Place vibrators to rapidly penetrate placed layer and at least 6 inches into
preceding layer. Do not insert vibrators into lower layers of concrete that have begun to
set. At each insertion, limit duration of vibration to time necessary to consolidate
concrete and complete embedment of reinforcement and other embedded items without
causing mix to segregate.
E. Placing Concrete Slabs: Deposit and consolidate concrete slabs in a continuous operation,
within limits of construction joints, until completing placement of a panel or section.
1. Consolidate concrete during placement operations so that concrete is thoroughly worked
around reinforcement, other embedded items and into corners.
2. Bring slab surfaces to correct level with a straightedge and strike off. Use bull floats
and highway straightedge to smooth surface free of humps or hollows. Do not disturb
slab surfaces prior to beginning finishing operations.
3. Maintain reinforcing in proper position on chairs during concrete placement.
F. Placing Exterior Concrete Walks and Flatwork: Place concrete, screed and wood float
surfaces to a smooth and uniform finish, free of open texturing and exposed aggregate. Avoid
working mortar to surface.
1. Bull float directly behind screed before bleedwater appears.
2. Immediately behind bullfloat, drag broom across surface for a medium broom finish. If
bleedwater appears before application of broom finish, allow surface water to evaporate
before brooming.
G. Cold-Weather Placement: Comply with provisions of ACI 306 and as follows. Protect
concrete work from physical damage or reduced strength that could be caused by frost,
freezing actions, or low temperatures. Do not place concrete on frozen subgrade or on
subgrade containing frozen materials.
H. Hot-Weather Placement: When hot weather conditions exist that would impair quality and
strength of concrete, place concrete complying with ACI 305 and as specified.
1. Cover reinforcing steel with water-soaked burlap if it becomes too hot, so that steel
temperature will not exceed the ambient air temperature immediately before embedding
in concrete.
2. Fog spray forms, reinforcing steel, and subgrade just before placing concrete. Keep
subgrade moisture uniform without puddles or dry areas.
3.9 FINISHING FORMED SURFACES
A. Rough-Formed Finish: Provide a rough-formed finish on formed concrete surfaces not
exposed to view in the finished Work or concealed by other construction. This is the concrete
surface having texture imparted by form-facing material used, with ties removed and holes
and defective areas repaired and patched, and fins and other projections exceeding 1/4 inch (6
mm) in height rubbed down or chipped off.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 17
B. Smooth-Formed Finish: Provide a smooth-formed finish on formed concrete surfaces exposed
to view or to be covered with a coating material applied directly to concrete, or a covering
material applied directly to concrete, such as waterproofing, damp proofing, veneer plaster,
painting, or another similar system. This is an as-cast concrete surface obtained with selected
form-facing material, arranged in an orderly and symmetrical manner with a minimum of
seams. Repair and patch defective areas with fins and other projections completely removed
and smoothed.
C. Related Unformed Surfaces: At tops of walls, horizontal offsets, and similar unformed
surfaces adjacent to formed surfaces, strike-off smooth and finish with a texture matching
adjacent formed surfaces. Continue final surface treatment of formed surfaces uniformly
across adjacent unformed surfaces unless otherwise indicated.
3.10 MONOLITHIC SLAB FINISHES
A. Float Finish: Apply float finish to monolithic slab surfaces to receive trowel finish and other
finishes as specified.
1. After screeding, consolidating, and leveling concrete slabs, do not work surface until
ready for floating. Begin floating, using float blades or float shoes only, when surface
water has disappeared, and when concrete has stiffened sufficiently to permit operation
of power-driven floats. Consolidate surface with power-driven floats or by hand-
floating if area is small or inaccessible to power units. Cut down high spots and fill low
spots, using a highway straightedge as required to meet the floor flatness and levelness
tolerances. Uniformly slope surfaces to drains. Immediately after leveling, refloat
surface to a uniform, smooth, granular texture.
B. Trowel Finish: Apply a trowel finish to monolithic slab surfaces exposed to view and slab
surfaces to be covered with resilient flooring, carpet, thin set ceramic or quarry tile, paint, or
another thin film-finish coating system.
1. After floating, begin first trowel-finish operation using a power-driven trowel. Begin
final troweling when surface produces a ringing sound as trowel is moved over surface.
Consolidate concrete surface by final troweling operation, free of trowel marks,
uniform in texture and appearance, and finish surfaces to tolerances of F(F) 35 (floor
flatness) and F(L) 25 (floor levelness) with minimum local values of F(F) 24 and F(L)
17 measured according to ASTM E 1155. Grind smooth any surface defects that would
telegraph through applied floor covering system.
C. Nonslip Trowel Finish: Apply a nonslip trowel finish to monolithic slab surfaces exposed to
view at locations scheduled and where required for slip resistance by the Construction
Representative. Verify amount of texture with the Construction Representative in advance of
the pour.
1. After floating, begin first trowel-finish operation using a power-driven trowel.
Consolidate concrete surface by final troweling operation, uniform in texture and
appearance, and finish surfaces to tolerances of F(F) 20 (floor flatness) and F(L) 17
(floor levelness) measured according to ASTM E 1155.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 18
D. Nonslip Broom Finish: Apply a nonslip broom finish to exterior concrete platforms, steps,
and ramps, and elsewhere as indicated.
1. Immediately after float finishing, slightly roughen concrete surface by brooming with
fiber-bristle broom perpendicular to main traffic route. Coordinate required final finish
with Construction Representative before application.
E. Where floor drains occur, water test the slab in the presence of the Construction
Representative to confirm proper slope to drains without high and low areas that cause
ponding and bird baths. Flatwork Subcontractor shall grind high spots to permit drainage.
3.11 FLOOR SLAB TRENCH PATCHING
A. Floor Slab Trench Patching: Job site blending of floor slab trench patching material shall be
done in accordance with applicable requirements of Article 2.7 - CONCRETE MIXING.
Measure materials using buckets or other suitable measuring container. Do not measure by
the shovel full. Place floor slab trench patching material with a maximum 6 inch slump, over
vapor retarder in continuous operation. Strike off material to be flush with, or slightly below
the adjacent slab surfaces to allow for application of trowelable leveling and patching
compound specified in Section 096500 to prevent telegraphing of the trench patch through the
finish flooring.
1. After trench patching material sets (approximately 20 minutes), sprinkle surface with
water and cover with 6 mil polyethylene for 2 hours. Remove polyethylene 2 hours after
application. Allow trench patching material to set for 24 hours minimum after
polyethylene curing material has been removed before application of floor covering.
3.12 MISCELLANEOUS CONCRETE ITEMS
A. Filling In: Fill in holes and openings left in concrete structures for passage of work by other
trades, unless otherwise shown or directed, after work of other trades is in place. Mix, place,
and cure concrete as specified to blend with in-place construction. Provide other
miscellaneous concrete filling shown or required to complete Work.
B. Curbs: Provide monolithic finish to interior curbs by stripping forms while concrete is still
green and by steel-troweling surfaces to a hard, dense finish with corners, intersections, and
terminations slightly rounded.
C. Equipment Bases and Foundations: Provide machine and equipment bases and foundations as
shown on drawings. Set anchor bolts for machines and equipment to template at correct
elevations, complying with diagrams or templates of manufacturer furnishing machines and
equipment.
D. Steel Pan Stairs: Provide concrete fill for steel pan stair treads, landings, and associated
items. Cast-in safety inserts and accessories as shown on drawings. Screed, tamp, and
trowel-finish concrete surfaces.
1. Cure interior stair treads with interior sealer as specified below for interior slabs.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 19
E. Non-Shrink Grout: Grout steel billet bearing plates, column base plates, equipment bases,
and other locations noted in the Structural Drawings with non-shrink grout.
3.13 CONCRETE CURING, SEALERS AND PROTECTION
A. General: Protect freshly placed concrete from premature drying and excessive cold or hot
temperatures. In hot, dry, and windy weather protect concrete from rapid moisture loss before
and during finishing operations with an evaporation-control material. Apply according to
manufacturer's instructions after screeding and bull floating, but before power floating and
troweling.
B. Flatwork as soon as final finishing and saw cutting operations are complete (within 2 hours
and after surface water sheen has disappeared).
C. Apply Exterior Curing Compound on Exterior Slabs, Walks, Pads, and Curbs as Follows:
1. Apply non-yellowing curing compound to exterior concrete slabs uniformly in
continuous operation by power spray or roller according to manufacturer's directions.
Recoat areas subjected to heavy rainfall within 3 hours after initial application.
Maintain continuity of coating and repair damage during curing period.
D. Cure interior slabs to receive floor coverings with interior dissipating curing compound
applied at the rate recommended by the manufacturer.
E. Cure interior slabs to be left exposed with interior sealer. Vacuum saw cutting spoils from
slab surface providing a clean surface to receive sealer. Apply sealer compound to interior
concrete floors left exposed and sealed.
1. Surface shall be dry and clean, free of dirt, dust, and stains.
2. Spray the product with a low pressure sprayer to the entire surface as soon as the surface
is firm enough to walk on.
3. Keep the entire surface wet with interior sealer for 30 minutes by brooming excess
product onto the dry spots or re-spraying the dry spots immediately.
4. As the product begins to dry into the surface and becomes slippery underfoot, lightly
sprinkle the surface with water to aid penetration and to bring alkali to the surface.
5. As the product again begins to dry into the surface and becomes slippery underfoot,
flush the surface with water and squeegee the surface totally dry, removing all excess
product and alkali or other impurities brought to the surface.
F. Curing Formed Surfaces: Keep continuously moist for not less than 7 days. Cure formed
concrete surfaces, by moist curing with forms in place for the full curing period, by moist
curing with water, by application of a dissipating curing compound, or a combination of
specified methods.
G. The Subcontractor shall protect completed concrete work from damage by construction
operations. Upon completion of the Project, surfaces shall be cleaned of dirt and stains,
including exterior flatwork, walks and pads.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 20
3.14 REMOVING FORMS
A. General: Formwork not supporting weight of concrete, such as sides of beams, walls,
columns, and similar parts of the Work, may be removed after cumulatively curing at not less
than 50F (10C) for 24 hours after placing concrete, provided concrete is sufficiently hard
to not be damaged by form-removal operations, and provided curing and protection operations
are maintained.
3.15 REUSING FORMS
A. Clean and repair surfaces of forms to be reused in the Work. Split, frayed, delaminated, or
otherwise damaged form-facing material will not be acceptable for exposed surfaces. Apply
new form-coating compound as specified for new formwork.
B. When forms are extended for successive concrete placement, thoroughly clean surfaces,
remove fins and laitance, and tighten forms to close joints. Align and secure joint to avoid
offsets. Do not use patched forms for exposed concrete surfaces.
3.16 CONCRETE SURFACE REPAIRS
A. Patching Defective Areas: Repair and patch defective areas with cement mortar immediately
after removing forms, when acceptable to Construction Representative.
B. Mix dry-pack mortar, consisting of one part portland cement to 2-1/2 parts fine aggregate
passing a No. 16 mesh sieve, using only enough water as required for handling and placing.
1. Cut out honeycombs, rock pockets, voids over 1/4 inch (6 mm) in any dimension, and
holes left by tie rods and bolts down to solid concrete but in no case to a depth less than
1 inch. Make edges of cuts perpendicular to the concrete surface. Thoroughly clean,
dampen with water, and brush-coat the area to be patched with bonding agent. Place
patching mortar before bonding agent has dried.
2. For surfaces exposed to view, blend white portland cement and standard portland
cement so that, when dry, patching mortar will match surrounding color. Provide test
areas at inconspicuous locations to verify mixture and color match before proceeding
with patching. Compact mortar in place and strike-off slightly higher than surrounding
surface.
C. Repairing Formed Surfaces: Remove and replace concrete having defective surfaces if
defects cannot be repaired to satisfaction of Construction Representative. Surface defects
include color and texture irregularities, cracks, spalls, air bubbles, honeycomb, rock pockets,
fins and other projections on the surface, and stains and other discolorations that cannot be
removed by cleaning. Flush out form tie holes and fill with dry-pack mortar or precast cement
cone plugs secured in place with bonding agent.
1. Repair concealed formed surfaces, where possible, containing defects that affect the
concrete's durability. If defects cannot be repaired, remove and replace the concrete.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 21
D. Repairing Unformed Surfaces: Test unformed surfaces, such as monolithic slabs, for
smoothness and verify surface tolerances specified for each surface and finish. Correct low
and high areas as specified. Test unformed surfaces sloped to drain for trueness of slope and
smoothness by using a template having the required slope.
1. Repair finished unformed surfaces containing defects that affect the concrete's
durability. Surface defects include crazing and cracks in excess of 0.01 inch wide or
that penetrate to the reinforcement or completely through nonreinforced sections
regardless of width, spalling, popouts, honeycombs, rock pockets, and other
objectionable conditions.
2. Correct high areas in unformed surfaces by grinding after concrete has cured at least 14
days.
3. Correct low areas in unformed surfaces during or immediately after completing surface
finishing operations by cutting out low areas and replacing with patching mortar. Finish
repaired areas to blend into adjacent concrete. Proprietary underlayment compounds
may be used when acceptable to Construction Representative.
4. Repair defective areas, except random cracks and single holes not exceeding 1 inch (25
mm) in diameter, by cutting out and replacing with fresh concrete. Remove defective
areas with clean, square cuts and expose reinforcing steel with at least 3/4-inch (19 mm)
clearance all around. Dampen concrete surfaces in contact with patching concrete and
apply bonding agent. Mix patching concrete of same materials to provide concrete of
same type or class as original concrete. Place, compact, and finish to blend with
adjacent finished concrete. Cure in same manner as adjacent concrete.
E. Repair isolated random cracks and single holes 1 inch or less in diameter in accordance with
methods recommended by the International Concrete Repair Institute (ICRI). Saw cut cracks
and cut out holes to sound concrete and clean of dust, dirt, and loose particles. Place and
finish repair material to match adjacent concrete. Keep patched area continuously moist for at
least 72 hours.
F. Perform structural repairs with prior approval of Construction Representative for method and
procedure, using specified epoxy adhesive and mortar.
G. Repair methods for conditions not specified above may be used, subject to acceptance of
Construction Representative.
3.17 REPLACING DEFECTIVE AREAS
A. When patching of defective slab-on-grade areas is unacceptable to the Owner’s Representative
and when directed by the Owner’s Representative replace defective slab-on-grade areas as
follows:
1. Replace area of slab-on-grade within extents of existing control joint pattern, but area not
less than either 6 ft. x 12 ft. or 12 ft. by 12 ft., and as directed by the Owner’s
Representative.
2. Fully remove existing concrete slab-on-grade within extents of slab replacement as
defined by Owner’s Representative.
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 22
3. Install dowels around perimeter of slab-on-grade replacement as per typical details (on the
structural drawings).
4. Install slab-on-grade concrete in accordance with specifications and requirements in this
specification section.
5. Finish slab-on-grade as per speciation requirements of this specification section.
6. Polish slab-on-grade as per Division 3 specification section “Polished Concrete Floor
Finish.”
B. B. Areas of slab-on-grade subject to removal and replacement may include, but are not
limited to the following at the final discretion of the Owner’s Representative:
1. Area of slab-on-grade that exhibit(s) crack or cracks larger than 1/8” in width and extend
for a length in excess of three feet that also meet one or more of the following criteria:
a. Cracked slab is located in a high traffic public area of the building
b. It has been determined by Owner’s Representative that crack(s) cannot be
adequately repaired
c. There is differential movement present on either side of the cracked slab
2. Area of slab on grade that exhibit(s) crack or cracks smaller than 1/8” in width that also
meet one or more of the following criteria:
a. There are multiple cracks located within an area bound by control joints
b. It has been determined by the Owner’s Representative that the crack(s) cannot be
adequately repaired.
3.18 QUALITY CONTROL TESTING DURING CONSTRUCTION
A. Sampling and testing for quality control during concrete placement may include the following,
as directed by Construction Representative.
1. Sampling Fresh Concrete: ASTM C 172, except modified for slump to comply with
ASTM C 94.
a. Slump: ASTM C 143; one test at point of discharge for each day's pour of each
type of concrete; one test for each set of compression test specimens; additional
tests when concrete consistency seems to have changed.
b. Air Content: ASTM C 173, volumetric method for lightweight or normal weight
concrete; ASTM C 231, pressure method for normal weight concrete; one for each
day's pour of each type of air-entrained concrete; one test for each set of
compression test specimens of air-entrained concrete.
c. Concrete Temperature: ASTM C 1064; one test hourly when air temperature is
40°F (4°C) and below, when 80°F (27°C) and above, and one test for each set of
compressive-strength specimens.
d. Compression Test Specimen: ASTM C 31; one set of four standard cylinders for
each compressive-strength test, unless otherwise directed. Mold and store
cylinders for laboratory-cured test specimens except when field-cured test
specimens are required.
e. Compressive-Strength Tests: ASTM C 39; one set for each day's pour exceeding
5 cu. yd. plus additional sets for each 50 cu. yd. more than the first 25 cu. yd. of
each concrete class placed in any one day; one specimen tested at 7 days, two
specimens tested at 28 days, and one specimen retained in reserve for later testing
Giant Eagle Market #6550 The Bridges, Carmel, Indiana
Building Shell Bid & Permit
DLA Project 2014040.00
August 12, 2014
CAST-IN-PLACE CONCRETE 033000 - 23
if required. For slabs on grade, test one specimen at 7 days, one specimen at 14
days, and two specimens at 56 days.
2. When frequency of testing will provide fewer than five strength tests for a given class of
concrete, conduct testing from at least five randomly selected batches or from each
batch if fewer than five are used.
3. When total quantity of a given class of concrete is less than 50 cu. yd., Construction
Representative may waive strength testing if adequate evidence of satisfactory strength
is provided.
4. When strength of field-cured cylinders is less than 85 percent of companion laboratory-
cured cylinders, evaluate current operations and provide corrective procedures for
protecting and curing the in-place concrete.
5. Strength level of concrete will be considered satisfactory if averages of sets of three
consecutive strength test results equal or exceed specified compressive strength and no
individual strength test result falls below specified compressive strength by more than
500 psi (3.4 Mpa).
B. Check slab for compliance with specified floor flatness tolerances in accordance with ASTM
E 1155.
C. Test results will be reported in writing to Construction Representative, ready-mix producer,
and Subcontractor within 24 hours after tests. Reports of compressive strength tests shall
contain the Project identification name and number, date of concrete placement, name of
concrete testing service, concrete type and class, location of concrete batch in structure,
design compressive strength at 28 days, concrete mix proportions and materials, compressive
breaking strength, and type of break for both 7-day tests and 28-day tests.
D. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be
permitted but shall not be used as the sole basis for acceptance or rejection. Core tests will be
required.
E. Additional Tests: The testing agency will make additional tests of in-place concrete when test
results indicate specified concrete strengths and other characteristics have not been attained in
the structure, as directed by Construction Representative. Testing agency may conduct tests
to determine adequacy of concrete by cored cylinders complying with ASTM C 42, or by
other methods as directed.
3.19 LEED CONSIDERATIONS
A. Waste Management: Waste associated with the demolition and construction of the project,
including salvage, delivery, installation, and commissioning of products or systems should use
waste management practices in accordance with Section 01524 “Construction Waste
Management.”
B. Construction IAQ Management: Once the building is enclosed, all contractors must comply
with the Construction IAQ Management plan in 013502 – LEED Requirements.
END OF SECTION 033000