HomeMy WebLinkAbout03300.pdf BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 1
SECTION 03300 - 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 1 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section specifies cast-in place concrete, including formwork, reinforcement, concrete
materials, mix design, placement procedures, and finishes.
B. Related Sections include the following:
1. Division 2 Section "Earthwork" for drainage fill under slabs-on-grade.
2. Division 2 Section "Cement Concrete Pavement" for 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.
1.4 SUBMITTALS
A. Product Data: For each type of manufactured material and product indicated.
B. Design Mixes: For each concrete mix. Include alternate mix designs when characteristics of
materials, project conditions, weather, test results, or other circumstances warrant adjustments.
1. Indicate amounts of mix water to be withheld for later addition at Project site.
C. Steel Reinforcement Shop Drawings: Details of fabrication, bending, and placement, prepared
according to ACI 315, "Details and Detailing of Concrete Reinforcement." Include material,
grade, bar schedules, stirrup spacing, bent bar diagrams, arrangement, and supports of
concrete reinforcement. Include special reinforcement required for openings through concrete
structures.
D. Material Test Reports: From a qualified testing agency indicating and interpreting test results
for compliance of the following with requirements indicated, based on comprehensive testing of
current materials:
E. Minutes of preinstallation conference.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 2
1.5 QUALITY ASSURANCE
A. Installer Qualifications: An experienced installer who has completed concrete Work similar in
material, design, and extent to that indicated for this Project and whose work has resulted in
construction with a record of successful in-service performance.
B. Professional Engineer Qualifications: A professional engineer who is legally qualified to
practice in jurisdiction where Project is located and who is experienced in providing engineering
services of the kind indicated. Engineering services are defined as those performed for
formwork and shoring and reshoring installations that are similar to those indicated for this
Project in material, design, and extent.
C. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete
products complying with ASTM C 94 requirements for production facilities and equipment.
1. Manufacturer must be certified according to the National Ready Mixed Concrete
Association's Certification of Ready Mixed Concrete Production Facilities.
D. Testing Agency Qualifications: An independent testing agency, acceptable to authorities having
jurisdiction, qualified according to ASTM C 1077 and ASTM E 329 to conduct the testing
indicated, as documented according to ASTM E 548.
1. Personnel conducting field tests shall be qualified as ACI Concrete Field Testing
Technician, Grade 1, according to ACI CP-1 or an equivalent certification program.
E. Source Limitations: Obtain each type or class of cementitious material of the same brand from
the same manufacturer's plant, each aggregate from one source, and each admixture from the
same manufacturer.
F. ACI Publications: Comply with the following, unless more stringent provisions are indicated:
1. ACI 301, "Specification for Structural Concrete."
2. ACI 117, "Specifications for Tolerances for Concrete Construction and Materials."
G. Preinstallation Conference: Conduct conference at Project site to comply with requirements in
Division 1 Section "Project Meetings."
1. Before submitting design mixes, review concrete mix design and examine procedures for
ensuring quality of concrete materials. Require representatives of each entity directly
concerned with cast-in-place concrete to attend, including the following:
a. Contractor's superintendent.
b. Independent testing agency responsible for concrete design mixes.
c. Ready-mix concrete producer.
d. Concrete subcontractor.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Deliver, store, and handle steel reinforcement to prevent bending and damage.
1. Avoid damaging coatings on steel reinforcement.
2. Repair damaged epoxy coatings on steel reinforcement according to
ASTM D 3963/D 3963M.
PART 2 - PRODUCTS
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 3
2.1 FORM-FACING MATERIALS
A. Smooth-Formed Finished Concrete: Form-facing panels that will provide continuous, true, and
smooth concrete surfaces. Furnish in largest practicable sizes to minimize number of joints.
1. Plywood, metal, or other approved panel materials.
2. Exterior-grade plywood panels, suitable for concrete forms, complying with DOC PS 1,
and as follows:
a. High-density overlay, Class 1, or better.
b. Medium-density overlay, Class 1, or better, mill-release agent treated and edge
sealed.
c. Structural 1, B-B, or better, mill oiled and edge sealed.
d. B-B (Concrete Form), Class 1, or better, mill oiled and edge sealed.
B. Rough-Formed Finished Concrete: Plywood, lumber, metal, or another approved material.
Provide lumber dressed on at least two edges and one side for tight fit.
C. Chamfer Strips: Wood, metal, PVC, or rubber strips, 3/4 by 3/4 inch (19 by 19 mm), minimum.
D. Form-Release Agent: Vegatable oil release agents.
E. Form Ties: Factory-fabricated, removable or snap-off metal or glass-fiber-reinforced plastic
form ties designed to resist lateral pressure of fresh concrete on forms and to prevent spalling of
concrete on removal.
1. Furnish units that will leave no corrodible metal closer than 1 inch (25 mm) to the plane of
the exposed concrete surface.
2. Furnish ties that, when removed, will leave holes not larger than 1 inch (25 mm) in
diameter in concrete surface.
3. Furnish ties with integral water-barrier plates to walls indicated to receive dampproofing
or waterproofing.
2.2 STEEL REINFORCEMENT
A. Reinforcing Bars: ASTM A 615/A 615M, Grade 60 (Grade 420), deformed.
B. Plain-Steel Welded Wire Fabric: ASTM A 185, fabricated from as-drawn steel wire into flat
sheets.
2.3 REINFORCEMENT ACCESSORIES
A. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and
fastening reinforcing bars and welded wire fabric in place. Manufacture bar supports according
to CRSI's "Manual of Standard Practice" from steel wire, plastic, or precast concrete or fiber-
reinforced concrete of greater compressive strength than concrete, and as follows:
1. For concrete surfaces exposed to view where legs of wire bar supports contact forms,
use CRSI Class 1 plastic-protected or CRSI Class 2 stainless-steel bar supports.
2.4 CONCRETE MATERIALS
A. Portland Cement: ASTM C 150, Type I/II.
B. Fly ash per structural general notes.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 4
C. Normal-Weight Aggregate: ASTM C 33, uniformly graded, and as follows:
1. Class: Severe weathering region, but not less than 3S.
2. Nominal Maximum Aggregate Size: 3/4 inch (19 mm).
3. Combined Aggregate Gradation: Well graded from coarsest to finest with not more than
18 percent and not less than 8 percent retained on an individual sieve, except that less
than 8 percent may be retained on coarsest sieve and on No. 50 (0.3-mm) sieve, and
less than 8 percent may be retained on sieves finer than No. 50 (0.3 mm).
D. Water: Potable and complying with ASTM C 94.
2.5 ADMIXTURES
A. General: Admixtures certified by manufacturer to contain not more than 0.1 percent water-
soluble chloride ions by mass of cementitious material and to be compatible with other
admixtures and cementitious materials. Do not use admixtures containing calcium chloride.
B. Air-Entraining Admixture: ASTM C 260.
C. Water-Reducing Admixture: ASTM C 494, Type A.
D. High-Range, Water-Reducing Admixture: ASTM C 494, Type F.
E. Water-Reducing and Accelerating Admixture: ASTM C 494, Type E.
F. Water-Reducing and Retarding Admixture: ASTM C 494, Type D.
2.6 VAPOR RETARDERS
A. Plastic Vapor Retarder: ASTM E 1745, Class A, with minimum permeance of 0.02 perms.
Include manufacturer's recommended adhesive or pressure-sensitive tape.
1. Available Products:
a. Stego Industries, LLC; Stego Wrap 15 mil
b. W.R. Meadows; W.R. Meadows Perminator 15 mil
c. Reef Industries, Inc.; Griffolyn 15 mil
B. Fine-Graded Granular Material: Clean mixture of crushed stone, crushed gravel, and
manufactured or natural sand; ASTM D 448, Size 10, with 100 percent passing a No. 4 (4.75-
mm) sieve and 10 to 30 percent passing a No. 100 (0.15-mm) sieve; meeting deleterious
substance limits of ASTM C 33 for fine aggregates.
C. Granular Fill: Clean mixture of crushed stone or crushed or uncrushed gravel; ASTM D 448,
Size 57, with 100 percent passing a 1-1/2-inch (38-mm) sieve and 0 to 5 percent passing a
No. 8 (2.36-mm) sieve.
2.7 CURING MATERIALS
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 5
A. Evaporation Retarder: Waterborne, monomolecular film forming, manufactured for application
to fresh concrete.
B. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf, weighing
approximately 9 oz./sq. yd. (305 g/sq. m) dry.
C. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.
D. Water: Potable.
E. Clear, Solvent-Borne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B.
F. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B.
G. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, 18
to 22 percent solids.
H. Clear, Solvent-Borne, Membrane-Forming Curing and Sealing Compound: ASTM C 1315,
Type 1, Class A.
I. Clear, Waterborne, Membrane-Forming Curing and Sealing Compound: ASTM C 1315, Type 1,
Class A.
J. Products: Subject to compliance with requirements, provide one of the following:
1. Evaporation Retarder:
a. Cimfilm; Axim Concrete Technologies.
b. Finishing Aid Concentrate; Burke Group, LLC (The).
c. Spray-Film; ChemMasters.
d. Aquafilm; Conspec Marketing & Manufacturing Co., Inc.
e. Sure Film; Dayton Superior Corporation.
f. Eucobar; Euclid Chemical Co.
g. Vapor Aid; Kaufman Products, Inc.
h. Lambco Skin; Lambert Corporation.
i. E-Con; L&M Construction Chemicals, Inc.
j. Confilm; Master Builders, Inc.
k. Waterhold; Metalcrete Industries.
l. Rich Film; Richmond Screw Anchor Co.
m. SikaFilm; Sika Corporation.
n. Finishing Aid; Symons Corporation.
o. Certi-Vex EnvioAssist; Vexcon Chemicals, Inc.
2. Clear, Solvent-Borne, Membrane-Forming Curing Compound:
a. AH Clear Cure; Anti-Hydro International, Inc.
b. Spartan-Cote; Burke Group, LLC (The).
c. Spray-Cure & Seal 15; ChemMasters.
d. Conspec #1-15 percent solids; Conspec Marketing & Manufacturing Co., Inc.
e. Day-Chem Cure and Seal; Dayton Superior Corporation.
f. Diamond Clear; Euclid Chemical Co.
g. Nitocure S; Fosroc.
h. Cure & Seal 309; Kaufman Products Inc.
i. Lambco 120; Lambert Corporation.
j. L&M Dress & Seal 18; L&M Construction Chemicals, Inc.
k. CS-309; W. R. Meadows, Inc.
l. Seal N Kure; Metalcrete Industries.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 6
m. Rich Seal 14 percent UV; Richmond Screw Anchor Co.
n. Kure-N-Seal; Sonneborn, Div. of ChemRex, Inc.
o. Flortec 14; Sternson Group.
p. Cure & Seal 14 percent; Symons Corporation.
q. Clear Seal 150; Tamms Industries Co., Div. of LaPorte Construction Chemicals of
North America, Inc.
r. Acrylic Cure; Unitex.
s. Certi-Vex AC 309; Vexcon Chemicals, Inc.
3. Clear, Waterborne, Membrane-Forming Curing Compound:
a. AH Clear Cure WB; Anti-Hydro International, Inc.
b. Klear Kote WB II Regular; Burke Chemicals.
c. Safe-Cure & Seal 20; ChemMasters.
d. High Seal; Conspec Marketing & Manufacturing Co., Inc.
e. Safe Cure and Seal; Dayton Superior Corporation.
f. Aqua Cure VOX; Euclid Chemical Co.
g. Cure & Seal 309 Emulsion; Kaufman Products Inc.
h. Glazecote Sealer-20; Lambert Corporation.
i. Dress & Seal WB; L&M Construction Chemicals, Inc.
j. Vocomp-20; W. R. Meadows, Inc.
k. Metcure; Metalcrete Industries.
l. Cure & Seal 150E; Nox-Crete Products Group, Kinsman Corporation.
m. Rich Seal 14 percent E; Richmond Screw Anchor Co.
n. Kure-N-Seal WB; Sonneborn, Div. of ChemRex, Inc.
o. Florseal W.B.; Sternson Group.
p. Cure & Seal 14 percent E; Symons Corporation.
q. Seal Cure WB 150; Tamms Industries Co., Div. of LaPorte Construction Chemicals
of North America, Inc.
r. Hydro Seal; Unitex.
s. Starseal 309; Vexcon Chemicals, Inc.
4. Clear, Waterborne, Membrane-Forming Curing Compound, 18 to 22 Percent Solids:
a. Klear Kote WB II 20 percent; Burke Chemicals.
b. Safe-Cure & Seal 20; ChemMasters.
c. Conspec 21; Conspec Marketing & Manufacturing Co., Inc.
d. Diamond Clear VOX; Euclid Chemical Co.
e. SureCure Emulsion; Kaufman Products Inc.
f. Glazecote Sealer-20; Lambert Corporation.
g. Dress & Seal WB; L&M Construction Chemicals, Inc.
h. Vocomp-20; W. R. Meadows, Inc.
i. Metcure 0800; Metalcrete Industries.
j. Cure & Seal 200E; Nox-Crete Products Group, Kinsman Corporation.
k. Rich Seal 18 percent E; Richmond Screw Anchor Co.
l. Kure-N-Seal W; Sonneborn, Div. of ChemRex, Inc.
m. Florseal W.B.; Sternson Group.
n. Cure & Seal 18 percent E; Symons Corporation.
o. Seal Cure WB STD; Tamms Industries Co., Div. of LaPorte Construction
Chemicals of North America, Inc.
p. Hydro Seal 800; Unitex.
q. Starseal 0800; Vexcon Chemicals, Inc.
5. Clear, Solvent-Borne, Membrane-Forming Curing and Sealing Compound:
a. Spray-Cure & Seal Plus; ChemMasters.
b. UV Super Seal; Lambert Corporation.
c. Lumiseal Plus; L&M Construction Chemicals, Inc.
d. CS-309/30; W. R. Meadows, Inc.
e. Seal N Kure 30; Metalcrete Industries.
f. Rich Seal 31 percent UV; Richmond Screw Anchor Co.
g. Cure & Seal 31 percent UV; Symons Corporation.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 7
h. Certi-Vex AC 1315; Vexcon Chemicals, Inc.
6. Clear, Waterborne, Membrane-Forming Curing and Sealing Compound:
a. Klear-Kote Cure-Sealer-Hardener, 30 percent solids; Burke Group, LLC (The).
b. Polyseal WB; ChemMasters.
c. UV Safe Seal; Lambert Corporation.
d. Lumiseal WB Plus; L&M Construction Chemicals, Inc.
e. Vocomp-30; W. R. Meadows, Inc.
f. Metcure 30; Metalcrete Industries.
g. Vexcon Starseal 1315; Vexcon Chemicals, Inc.
2.8 RELATED MATERIALS
A. Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber, with recycled content.
B. Epoxy Joint Filler: Two-component, semirigid, 100 percent solids, epoxy resin with a Shore A
hardness of 80 per ASTM D 2240.
C. Bonding Agent: ASTM C 1059, Type II, non-redispersible, acrylic emulsion or styrene
butadiene.
D. Epoxy-Bonding Adhesive: ASTM C 881, two-component epoxy resin, capable of humid curing
and bonding to damp surfaces, of class and grade to suit requirements, and as follows:
1. Types IV and V, load bearing, for bonding hardened or freshly mixed concrete to
hardened concrete.
2.9 REPAIR MATERIALS
A. Repair Underlayment: Cement-based, polymer-modified, self-leveling product that can be
applied in thicknesses from 1/8 inch (3.2 mm) and that can be feathered at edges to match
adjacent floor elevations.
1. Cement Binder: ASTM C 150, portland cement or hydraulic or blended hydraulic cement
as defined in ASTM C 219.
2. Primer: Product of underlayment manufacturer recommended for substrate, conditions,
and application.
3. Aggregate: Well-graded, washed gravel, 1/8 to 1/4 inch (3 to 6 mm) or coarse sand as
recommended by underlayment manufacturer.
4. Compressive Strength: Not less than 4100 psi (29 MPa) at 28 days when tested
according to ASTM C 109/C 109M.
B. Repair Topping: Traffic-bearing, cement-based, polymer-modified, self-leveling product that
can be applied in thicknesses from 1/4 inch (6 mm).
1. Cement Binder: ASTM C 150, portland cement or hydraulic or blended hydraulic cement
as defined in ASTM C 219.
2. Primer: Product of topping manufacturer recommended for substrate, conditions, and
application.
3. Aggregate: Well-graded, washed gravel, 1/8 to 1/4 inch (3 to 6 mm) or coarse sand as
recommended by topping manufacturer.
4. Compressive Strength: Not less than 5700 psi (39 MPa) at 28 days when tested
according to ASTM C 109/C 109M.
2.10 CONCRETE MIXES
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 8
A. Prepare design mixes for each type and strength of concrete determined by either laboratory
trial mix or field test data bases, as follows:
1. Proportion normal-weight concrete according to ACI 211.1 and ACI 301.
B. Use a qualified independent testing agency for preparing and reporting proposed mix designs
for the laboratory trial mix basis.
C. Footings and Foundation Walls: Proportion normal-weight concrete mix as follows:
1. Compressive Strength (28 Days): 3500 psi (24.1 MPa).
2. Maximum Slump: 5 inches (125 mm).
3. Maximum Slump for Concrete Containing High-Range Water-Reducing Admixture: 8
inches (200 mm) after admixture is added to concrete with 2- to 4-inch (50- to 100-mm)
slump.
D. Slab-on-Grade: Proportion normal-weight concrete mix as follows:
1. Compressive Strength (28 Days): 3500 psi.
2. Minimum Cementitious Materials Content: 550 lb/cu. yd.
3. Maximum Slump: 5 inches.
E. Exterior Slab-On-Grade: Proportion normal-weight concrete mix as follows:
1. Compressive Strength (28 Days): 4500 psi.
2. Minimum Cementitious Materials Content: 560 lb/cu. yd.
3. Maximum Slump: 4 inches.
4. Air Entrainment: 6%
F. Cementitious Materials: For concrete exposed to deicers, limit percentage, by weight, of
cementitious materials other than portland cement according to ACI 301 requirements.
G. Maximum Water-Cementitious Materials Ratio: 0.45 for concrete exposed to deicers or subject
to freezing and thawing while moist.
H. Air Content: Add air-entraining admixture at manufacturer's prescribed rate to result in concrete
at point of placement having an air content as follows within a tolerance of plus 1 or minus 1.5
percent, unless otherwise indicated:
1. Air Content: 6 percent for 3/4-inch- (19-mm-) nominal maximum aggregate size.
I. Do not air entrain concrete to trowel-finished interior floors and suspended slabs. Do not allow
entrapped air content to exceed 3 percent.
J. Limit water-soluble, chloride-ion content in hardened concrete to 0.15 percent by weight of
cement.
K. Admixtures: Use admixtures according to manufacturer's written instructions.
1. Use water-reducing admixture or high-range water-reducing admixture (superplasticizer)
in concrete, as required, for placement and workability.
2. Use water-reducing and retarding admixture when required by high temperatures, low
humidity, or other adverse placement conditions.
3. Use water-reducing admixture in pumped concrete, concrete for heavy-use industrial
slabs and parking structure slabs, concrete required to be watertight, and concrete with a
water-cementitious materials ratio below 0.50.
2.11 FABRICATING REINFORCEMENT
A. Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice."
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 9
2.12 CONCRETE MIXING
A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to ASTM C 94
and ASTM C 1116, and furnish batch ticket information.
1. When air temperature is between 85 and 90 deg F (30 and 32 deg C), reduce mixing and
delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F (32
deg C), reduce mixing and delivery time to 60 minutes.
B. Project-Site Mixing: Measure, batch, and mix concrete materials and concrete according to
ASTM C 94. Mix concrete materials in appropriate drum-type batch machine mixer.
1. For mixer capacity of 1 cu. yd. (0.76 cu. m) or smaller, continue mixing at least one and
one-half minutes, but not more than five minutes after ingredients are in mixer, before
any part of batch is released.
2. For mixer capacity larger than 1 cu. yd. (0.76 cu. m), increase mixing time by 15 seconds
for each additional 1 cu. yd. (0.76 cu. m).
3. 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
added. Record approximate location of final deposit in structure.
PART 3 - EXECUTION
3.1 FORMWORK
A. Design, erect, shore, brace, and maintain formwork, according to ACI 301, to support vertical,
lateral, static, and dynamic loads, and construction loads that might be applied, until concrete
structure can support such loads.
B. Construct formwork so concrete members and structures are of size, shape, alignment,
elevation, and position indicated, within tolerance limits of ACI 117.
C. Limit concrete surface irregularities, designated by ACI 347R as abrupt or gradual, as follows:
1. Class B, 1/4 inch (6 mm).
D. Construct forms tight enough to prevent loss of concrete mortar.
E. Fabricate forms for easy removal without hammering or prying against concrete surfaces.
Provide crush or wrecking plates where stripping may damage cast concrete surfaces. Provide
top forms for inclined surfaces steeper than 1.5 horizontal to 1 vertical. Kerf wood inserts for
forming keyways, reglets, recesses, and the like, for easy removal.
1. Do not use rust-stained steel form-facing material.
F. Set edge forms, bulkheads, and intermediate screed strips for slabs to achieve required
elevations and slopes in finished concrete surfaces. Provide and secure units to support screed
strips; use strike-off templates or compacting-type screeds.
G. Provide temporary openings for cleanouts and inspection ports where interior area of formwork
is inaccessible. Close openings with panels tightly fitted to forms and securely braced to
prevent loss of concrete mortar. Locate temporary openings in forms at inconspicuous
locations.
H. Chamfer exterior corners and edges of permanently exposed concrete.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 10
I. Form openings, chases, offsets, sinkages, keyways, reglets, blocking, screeds, and bulkheads
required in the Work. Determine sizes and locations from trades providing such items.
J. Clean forms and adjacent surfaces to receive concrete. Remove chips, wood, sawdust, dirt,
and other debris just before placing concrete.
K. Retighten forms and bracing before placing concrete, as required, to prevent mortar leaks and
maintain proper alignment.
L. Coat contact surfaces of forms with form-release agent, according to manufacturer's written
instructions, before placing reinforcement.
3.2 EMBEDDED ITEMS
A. Place and secure anchorage devices and other embedded items required for adjoining work
that is attached to or supported by cast-in-place concrete. Use Setting Drawings, templates,
diagrams, instructions, and directions furnished with items to be embedded.
1. Install anchor bolts, accurately located, to elevations required.
3.3 REMOVING AND REUSING FORMS
A. General: Formwork, for sides of beams, walls, columns, and similar parts of the Work, that
does not support weight of concrete may be removed after cumulatively curing at not less than
50 deg F (10 deg C) for 24 hours after placing concrete provided concrete is hard enough to not
be damaged by form-removal operations and provided curing and protection operations are
maintained.
B. 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-release agent.
C. When forms are reused, clean surfaces, remove fins and laitance, and tighten to close joints.
Align and secure joints to avoid offsets. Do not use patched forms for exposed concrete
surfaces unless approved by Architect.
3.4 VAPOR RETARDERS
A. Vapor Retarder: Place, protect, and repair vapor-retarder sheets according to ASTM E 1643
and manufacturer's written instructions.
3.5 STEEL REINFORCEMENT
A. General: Comply with CRSI's "Manual of Standard Practice" for placing reinforcement.
1. Do not cut or puncture vapor retarder. Repair damage and reseal vapor retarder before
placing concrete.
B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials.
C. Accurately position, support, and secure reinforcement against displacement. Locate and
support reinforcement with bar supports to maintain minimum concrete cover. Do not tack weld
crossing reinforcing bars.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 11
1. Shop- or field-weld reinforcement according to AWS D1.4, where indicated.
D. Set wire ties with ends directed into concrete, not toward exposed concrete surfaces.
E. Install welded wire fabric in longest practicable lengths on bar supports spaced to minimize
sagging. Lap edges and ends of adjoining sheets at least one mesh spacing. Offset laps of
adjoining sheet widths to prevent continuous laps in either direction. Lace overlaps with wire.
3.6 JOINTS
A. General: Construct joints true to line with faces perpendicular to surface plane of concrete.
B. Construction Joints: Install so strength and appearance of concrete are not impaired, at
locations indicated or as approved by Architect.
1. Place joints perpendicular to main reinforcement. Continue reinforcement across
construction joints, unless otherwise indicated. Do not continue reinforcement through
sides of strip placements of floors and slabs.
2. Form from preformed galvanized steel, plastic keyway-section forms, or bulkhead forms
with keys, unless otherwise indicated. Embed keys at least 1-1/2 inches (38 mm) into
concrete.
3. Locate joints for beams, slabs, joists, and girders in the middle third of spans. Offset
joints in girders a minimum distance of twice the beam width from a beam-girder
intersection.
4. Locate horizontal joints in walls and columns at underside of floors, slabs, beams, and
girders and at the top of footings or floor slabs.
5. Space vertical joints in walls as indicated. Locate joints beside piers integral with walls,
near corners, and in concealed locations where possible.
6. Use epoxy-bonding adhesive at locations where fresh concrete is placed against
hardened or partially hardened concrete surfaces.
C. Contraction Joints in Slabs-on-Grade: Form weakened-plane contraction joints, sectioning
concrete into areas as indicated. Construct contraction joints for a depth equal to at least one-
fourth of concrete thickness, as follows:
1. Sawed Joints: Form contraction joints with power saws equipped with shatterproof
abrasive or diamond-rimmed blades. Cut 1/8-inch- (3-mm-) wide joints into concrete
when cutting action will not tear, abrade, or otherwise damage surface and before
concrete develops random contraction cracks.
D. Isolation Joints in Slabs-on-Grade: After removing formwork, install joint-filler strips at slab
junctions with vertical surfaces, such as column pedestals, foundation walls, grade beams, and
other locations, as indicated.
1. Terminate full-width joint-filler strips not less than 1/2 inch (12 mm) or more than 1 inch
(25 mm) below finished concrete surface where joint sealants, specified in Division 7
Section "Joint Sealants," are indicated.
2. Install joint-filler strips in lengths as long as practicable. Where more than one length is
required, lace or clip sections together.
3.7 CONCRETE PLACEMENT
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 12
A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items
is complete and that required inspections have been performed.
B. Do not add water to concrete during delivery, at Project site, or during placement, unless
approved by Architect.
C. Deposit concrete continuously or in layers of such thickness that no new concrete will be placed
on concrete that has hardened enough to cause seams or planes of weakness. If a section
cannot be placed continuously, provide construction joints as specified. Deposit concrete to
avoid segregation.
D. Deposit concrete in forms in horizontal layers no deeper than 24 inches (600 mm) and in a
manner to avoid inclined construction joints. Place each layer while preceding layer is still
plastic, to avoid cold joints.
1. Consolidate placed concrete with mechanical vibrating equipment. Use equipment and
procedures for consolidating concrete recommended by ACI 309R.
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
vibrator. Place vibrators to rapidly penetrate placed layer and at least 6 inches (150 mm)
into preceding layer. Do not insert vibrators into lower layers of concrete that have begun
to lose plasticity. 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 constituents to segregate.
E. Deposit and consolidate concrete for floors and slabs in a continuous operation, within limits of
construction joints, until placement of a panel or section is complete.
1. Consolidate concrete during placement operations so concrete is thoroughly worked
around reinforcement and other embedded items and into corners.
2. Maintain reinforcement in position on chairs during concrete placement.
3. Screed slab surfaces with a straightedge and strike off to correct elevations.
4. Slope surfaces uniformly to drains where required.
5. Begin initial floating using bull floats or darbies to form a uniform and open-textured
surface plane, free of humps or hollows, before excess moisture or bleedwater appears
on the surface. Do not further disturb slab surfaces before starting finishing operations.
F. Cold-Weather Placement: Comply with ACI 306.1 and as follows. Protect concrete work from
physical damage or reduced strength that could be caused by frost, freezing actions, or low
temperatures.
1. When air temperature has fallen to or is expected to fall below 40 deg F (4.4 deg C),
uniformly heat water and aggregates before mixing to obtain a concrete mixture
temperature of not less than 50 deg F (10 deg C) and not more than 80 deg F (27 deg C)
at point of placement.
2. Do not use frozen materials or materials containing ice or snow. Do not place concrete
on frozen subgrade or on subgrade containing frozen materials.
3. Do not use calcium chloride, salt, or other materials containing antifreeze agents or
chemical accelerators, unless otherwise specified and approved in mix designs.
G. Hot-Weather Placement: Place concrete according to recommendations in ACI 305R and as
follows, when hot-weather conditions exist:
1. Cool ingredients before mixing to maintain concrete temperature below 90 deg F (32
deg C) at time of placement. Chilled mixing water 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 Contractor's option.
2. Cover steel reinforcement with water-soaked burlap so steel temperature will not exceed
ambient air temperature immediately before embedding in concrete.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 13
3. Fog-spray forms, steel reinforcement, and subgrade just before placing concrete. Keep
subgrade moisture uniform without standing water, soft spots, or dry areas.
3.8 FINISHING FORMED SURFACES
A. Rough-Formed Finish: As-cast concrete texture imparted by form-facing material with tie holes
and defective areas repaired and patched. Remove fins and other projections exceeding
ACI 347R limits for class of surface specified.
B. Smooth-Formed Finish: As-cast concrete texture imparted by form-facing material, arranged in
an orderly and symmetrical manner with a minimum of seams. Repair and patch tie holes and
defective areas. Remove fins and other projections exceeding 1/8 inch (3 mm) in height.
1. Apply to concrete surfaces exposed to public view or to be covered with a coating or
covering material applied directly to concrete, such as waterproofing, dampproofing,
veneer plaster, or painting.
2. Do not apply rubbed finish to smooth-formed finish.
C. Rubbed Finish: Apply the following to smooth-formed finished concrete:
1. Smooth-Rubbed Finish: Not later than one day after form removal, moisten concrete
surfaces and rub with carborundum brick or another abrasive until producing a uniform
color and texture. Do not apply cement grout other than that created by the rubbing
process.
2. Grout-Cleaned Finish: Wet concrete surfaces and apply grout of a consistency of thick
paint to coat surfaces and fill small holes. Mix one part portland cement to one and one-
half parts fine sand with a 1:1 mixture of bonding admixture and water. Add white
portland cement in amounts determined by trial patches so color of dry grout will match
adjacent surfaces. Scrub grout into voids and remove excess grout. When grout
whitens, rub surface with clean burlap and keep surface damp by fog spray for at least 36
hours.
D. 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.
3.9 FINISHING FLOORS AND SLABS
A. General: Comply with recommendations in ACI 302.1R for screeding, restraightening, and
finishing operations for concrete surfaces. Do not wet concrete surfaces.
B. Scratch Finish: While still plastic, texture concrete surface that has been screeded and bull-
floated or darbied. Use stiff brushes, brooms, or rakes.
1. Apply scratch finish to surfaces indicated and to surfaces to receive concrete floor
topping or mortar setting beds for ceramic or quarry tile, portland cement terrazzo, and
other bonded cementitious floor finishes.
C. Float Finish: Consolidate surface with power-driven floats or by hand floating if area is small or
inaccessible to power driven floats. Restraighten, cut down high spots, and fill low spots.
Repeat float passes and restraightening until surface is left with a uniform, smooth, granular
texture.
1. Apply float finish to surfaces indicated, to surfaces to receive trowel finish, and to floor
and slab surfaces to be covered with fluid-applied or sheet waterproofing, built-up or
membrane roofing, or sand-bed terrazzo.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 14
D. Trowel Finish: After applying float finish, apply first trowel finish and consolidate concrete by
hand or power-driven trowel. Continue troweling passes and restraighten until surface is free of
trowel marks and uniform in texture and appearance. Grind smooth any surface defects that
would telegraph through applied coatings or floor coverings.
1. Apply a trowel finish to surfaces indicated and to floor and slab surfaces exposed to view
or to be covered with resilient flooring, carpet, ceramic or quarry tile set over a cleavage
membrane, paint, or another thin film-finish coating system
2. Finish surfaces to the following tolerances, measured within 24 hours according to
ASTM E 1155/E 1155M for a randomly trafficked floor surface:
a. Specified overall values of flatness, F(F) 35; and levelness, F(L) 25; with minimum
local values of flatness, F(F) 24; and levelness, F(L) 17; for slabs-on-grade.
3. Finish and measure surface so gap at any point between concrete surface and an
unleveled freestanding 10-foot- (3.05-m-) long straightedge, resting on two high spots
and placed anywhere on the surface, does not exceed the following:
a. 3/16 inch (4.8 mm).
E. Trowel and Fine-Broom Finish: Apply a partial trowel finish, stopping after second troweling, to
surfaces indicated and to surfaces where ceramic or quarry tile is to be installed by either
thickset or thin-set method. Immediately after second troweling, and when concrete is still
plastic, slightly scarify surface with a fine broom.
F. Broom Finish: Apply a broom finish to exterior concrete platforms, steps, and ramps, and
elsewhere as indicated.
1. Immediately after float finishing, slightly roughen trafficked surface by brooming with
fiber-bristle broom perpendicular to main traffic route. Coordinate required final finish
with Architect before application.
3.10 MISCELLANEOUS CONCRETE ITEMS
A. Filling In: Fill in holes and openings left in concrete structures, unless otherwise indicated, 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 indicated 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.
3.11 CONCRETE PROTECTION AND CURING
A. General: Protect freshly placed concrete from premature drying and excessive cold or hot
temperatures. Comply with ACI 306.1 for cold-weather protection and with recommendations in
ACI 305R for hot-weather protection during curing.
B. Evaporation Retarder: Apply evaporation retarder to unformed concrete surfaces if hot, dry, or
windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h (1 kg/sq. m x h) before and
during finishing operations. Apply according to manufacturer's written instructions after placing,
screeding, and bull floating or darbying concrete, but before float finishing.
C. Formed Surfaces: Cure formed concrete surfaces, including underside of beams, supported
slabs, and other similar surfaces. If forms remain during curing period, moist cure after
loosening forms. If removing forms before end of curing period, continue curing by one or a
combination of the following methods:
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 15
D. Unformed Surfaces: Begin curing immediately after finishing concrete. Cure unformed
surfaces, including floors and slabs, concrete floor toppings, and other surfaces, by one or a
combination of the following methods:
1. Moisture Curing: Keep surfaces continuously moist for not less than seven days with the
following materials:
a. Water.
b. Continuous water-fog spray.
c. Absorptive cover, water saturated, and kept continuously wet. Cover concrete
surfaces and edges with 12-inch (300-mm) lap over adjacent absorptive covers.
2. Moisture-Retaining-Cover Curing: Cover concrete surfaces with moisture-retaining cover
for curing concrete, placed in widest practicable width, with sides and ends lapped at
least 12 inches (300 mm), and sealed by waterproof tape or adhesive. Cure for not less
than seven days. Immediately repair any holes or tears during curing period using cover
material and waterproof tape.
a. Moisture cure or use moisture-retaining covers to cure concrete surfaces to
receive floor coverings.
b. Moisture cure or use moisture-retaining covers to cure concrete surfaces to
receive penetrating liquid floor treatments.
c. Cure concrete surfaces to receive floor coverings with either a moisture-retaining
cover or a curing compound that the manufacturer recommends for use with floor
coverings.
3. Curing Compound: Apply uniformly in continuous operation by power spray or roller
according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall
within three hours after initial application. Maintain continuity of coating and repair
damage during curing period.
4. Curing and Sealing Compound: Apply uniformly to floors and slabs indicated in a
continuous operation by power spray or roller according to manufacturer's written
instructions. Recoat areas subjected to heavy rainfall within three hours after initial
application. Repeat process 24 hours later and apply a second coat. Maintain continuity
of coating and repair damage during curing period.
3.12 JOINT FILLING
A. Prepare, clean, and install joint filler according to manufacturer's written instructions.
1. Defer joint filling until concrete has aged at least six months. Do not fill joints until
construction traffic has permanently ceased.
B. Remove dirt, debris, saw cuttings, curing compounds, and sealers from joints; leave contact
faces of joint clean and dry.
C. Install semirigid epoxy joint filler full depth in saw-cut joints and at least 2 inches (50 mm) deep
in formed joints. Overfill joint and trim joint filler flush with top of joint after hardening.
3.13 CONCRETE SURFACE REPAIRS
A. Defective Concrete: Repair and patch defective areas when approved by Architect. Remove
and replace concrete that cannot be repaired and patched to Architect's approval.
B. Patching Mortar: Mix dry-pack patching mortar, consisting of one part portland cement to two
and one-half parts fine aggregate passing a No. 16 (1.2-mm) sieve, using only enough water for
handling and placing.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 16
C. Repairing Formed Surfaces: Surface defects include color and texture irregularities, cracks,
spalls, air bubbles, honeycombs, rock pockets, fins and other projections on the surface, and
stains and other discolorations that cannot be removed by cleaning.
1. Immediately after form removal, cut out honeycombs, rock pockets, and voids more than
1/2 inch (13 mm) in any dimension in solid concrete but not less than 1 inch (25 mm) in
depth. Make edges of cuts perpendicular to concrete surface. Clean, dampen with
water, and brush-coat holes and voids with bonding agent. Fill and compact with
patching mortar before bonding agent has dried. Fill form-tie voids with patching mortar
or cone plugs secured in place with bonding agent.
2. Repair defects on surfaces exposed to view by blending white portland cement and
standard portland cement so that, when dry, patching mortar will match surrounding
color. Patch a test area 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.
3. Repair defects on concealed formed surfaces that affect concrete's durability and
structural performance as determined by Architect.
D. Repairing Unformed Surfaces: Test unformed surfaces, such as floors and slabs, for finish and
verify surface tolerances specified for each surface. Correct low and high areas. Test surfaces
sloped to drain for trueness of slope and smoothness; use a sloped template.
1. Repair finished surfaces containing defects. Surface defects include spalls, popouts,
honeycombs, rock pockets, crazing and cracks in excess of 0.01 inch (0.25 mm) wide or
that penetrate to reinforcement or completely through unreinforced sections regardless of
width, and other objectionable conditions.
2. After concrete has cured at least 14 days, correct high areas by grinding.
3. Correct localized low areas 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.
4. Correct other low areas scheduled to receive floor coverings with a repair underlayment.
Prepare, mix, and apply repair underlayment and primer according to manufacturer's
written instructions to produce a smooth, uniform, plane, and level surface. Feather
edges to match adjacent floor elevations.
5. Correct other low areas scheduled to remain exposed with a repair topping. Cut out low
areas to ensure a minimum repair topping depth of 1/4 inch (6 mm) to match adjacent
floor elevations. Prepare, mix, and apply repair topping and primer according to
manufacturer's written instructions to produce a smooth, uniform, plane, and level
surface.
6. Repair defective areas, except random cracks and single holes 1 inch (25 mm) or less in
diameter, by cutting out and replacing with fresh concrete. Remove defective areas with
clean, square cuts and expose steel reinforcement 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 and mix as original
concrete except without coarse aggregate. Place, compact, and finish to blend with
adjacent finished concrete. Cure in same manner as adjacent concrete.
7. Repair random cracks and single holes 1 inch (25 mm) or less in diameter with patching
mortar. Groove top of cracks and cut out holes to sound concrete and clean off dust, dirt,
and loose particles. Dampen cleaned concrete surfaces and apply bonding agent. Place
patching mortar before bonding agent has dried. Compact patching mortar and finish to
match adjacent concrete. Keep patched area continuously moist for at least 72 hours.
E. Perform structural repairs of concrete, subject to Architect's approval, using epoxy adhesive and
patching mortar.
F. Repair materials and installation not specified above may be used, subject to Architect's
approval.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 17
3.14 FIELD QUALITY CONTROL
A. Testing Agency: Owner will engage a qualified independent testing and inspecting agency to
sample materials, perform tests, and submit test reports during concrete placement. Sampling
and testing for quality control may include those specified in this Article.
B. Testing Services: Testing of composite samples of fresh concrete obtained according to
ASTM C 172 shall be performed according to the following requirements:
1. Testing Frequency: Obtain one composite sample for each day's pour of each concrete
mix exceeding 5 cu. yd. (4 cu. m), but less than 25 cu. yd. (19 cu. m), plus one set for
each additional 50 cu. yd. (38 cu. m) or fraction thereof.
2. Retain subparagraph above or below. Above is an example that produces more frequent
testing than below. Below is testing frequency required to comply with ACI 301.
3. Slump: ASTM C 143; one test at point of placement for each composite sample, but not
less than one test for each day's pour of each concrete mix. Perform additional tests
when concrete consistency appears to change.
4. Air Content: ASTM C 231, pressure method, for normal-weight concrete; ASTM C 173,
volumetric method, for structural lightweight concrete; one test for each composite
sample, but not less than one test for each day's pour of each concrete mix.
5. Concrete Temperature: ASTM C 1064; one test hourly when air temperature is 40 deg F
(4.4 deg C) and below and when 80 deg F (27 deg C) and above, and one test for each
composite sample.
6. Unit Weight: ASTM C 567, fresh unit weight of structural lightweight concrete; one test
for each composite sample, but not less than one test for each day's pour of each
concrete mix.
7. Compression Test Specimens: ASTM C 31/C 31M; cast and laboratory cure one set of
four standard cylinder specimens for each composite sample.
a. Cast and field cure one set of four standard cylinder specimens for each composite
sample.
8. Compressive-Strength Tests: ASTM C 39; test two laboratory-cured specimens at 7
days and two at 28 days, hold one for 56 day break if required.
a. Test two field-cured specimens at 7 days and two at 28 days.
b. A compressive-strength test shall be the average compressive strength from two
specimens obtained from same composite sample and tested at age indicated.
C. When strength of field-cured cylinders is less than 85 percent of companion laboratory-cured
cylinders, Contractor shall evaluate operations and provide corrective procedures for protecting
and curing in-place concrete.
D. Strength of each concrete mix will be satisfactory if every average of any three consecutive
compressive-strength tests equals or exceeds specified compressive strength and no
compressive-strength test value falls below specified compressive strength by more than 500
psi (3.4 MPa).
E. Test results shall be reported in writing to Architect, concrete manufacturer, and Contractor
within 48 hours of testing. Reports of compressive-strength tests shall contain Project
identification name and number, date of concrete placement, name of concrete testing and
inspecting agency, location of concrete batch in Work, design compressive strength at 28 days,
concrete mix proportions and materials, compressive breaking strength, and type of break for
both 7-and 28-day tests.
F. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be
permitted by Architect but will not be used as sole basis for approval or rejection of concrete.
BICKFORD OF CARMEL, IN 12/12/2012
CAST-IN-PLACE CONCRETE 03300 - 18
G. Additional Tests: Testing and inspecting agency shall make additional tests of concrete when
test results indicate that slump, air entrainment, compressive strengths, or other requirements
have not been met, as directed by Architect. Testing and inspecting agency may conduct tests
to determine adequacy of concrete by cored cylinders complying with ASTM C 42 or by other
methods as directed by Architect.
END OF SECTION 03300