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B. Proof -roll prepared subbase with tandom dump truck to check for
unstable areas and need for additional compaction.
C. Moisten base to minimize absorption of water from fresh concrete.
grade and bottom selvage. Pull fabric taut and tie to posts, rails,
and tension wires.
F. Install vertical slats between fabric links for full fabric
B. During cold weather, remove ice and snow from within forms. Do
not use de -icing salts. Do not use water to clean out forms, unless
form work and concrete construction proceed within heated enclosure.
A. Manufacturer: Obtain masonry units from one manufacturer, of
uniform texture and color.
02515.32
02515.33
02515.34
02515.35
FORM CONSTRUCTION:
A. Set forms to
required grades and lines, rigidly braced and secured with sufficient
quantity of forms to allow continuous progress of work.
B. Clean forms after each use, and coat with form release agent as
often as required to ensure separation from concrete without damage.
REINFORCEMENT:
A. Locate, place and support reinforcement as specified in Division
3, sections, unless otherwise indicated.
CONCRETE PLACEMENT:
A. Comply with requirements of Division 3 sections for mixing and
placing concrete, and as herein specified,
B. Place concrete using methods which prevent segregation of mix.
C. Automatic machine may be used for curb and gutter placement at
Contractor's option. Machine placement must produce curbs and gutters
to required cross - section, lines, grades finish, and jointing as
specified for formed concrete.
JOINTS:
A. Construct expansion, and construction joints true -to -line with
face perpendicular to surface of concrete.
B. Provide premolded full size, one piece joint fillers for
expansion joints abutting concrete curbs, catch basins, manholes,
height.
G. Install gates plumb, level, and secure for full opening without
interference.
H. Use U- shaped wire clasping pipe and fabric firmly with ends
twisted at least two (2) full turns.
I. Install nuts for tension bands and hardware bolts on side of
fence opposite fabric side and peen ends of bolts.
02831.32 ERECTION TOLERANCES:
A. Maximum Variation From Plumb: 1/4 inch.
B. Maximum Offset From True Position: M 1 - inch.
C. Components may not infringe adjacent property lines.
END
DIVISION 3 - CONCRETE
SECTION 03010 CONCRETE WORK
03010.1 GENERAL
03010.11 RELATED DOCUMENTS:
A. Drawings, Specifications, Division 1 and Contract.
03010.12 DESCRIPTION OF WORK:
A. The extent of concrete work shown on drawings.
03010.13 QUALITY ASSURANCE:
03010.36
Use compressed air or other means to remove foreign matter.
CONCRETE I PLACEMENT:
A. Comply with American Concrete Institute 304, and herein
specified.
B. Install vapor barrier under interior slabs on grade. Lap joints
minimum 6- inches and seal watertight.
C. Deposit concrete continuously or in layers of such thickness that
no concrete will be placed on concrete which has hardened sufficiently
to cause the formation of seams or planes of weakness.
D. Consolidate placed concrete by mechanical vibrating equipment
supplemented by hand spading, rodding or tamping (except for slabs).
E. Deposit and consolidate concrete slabs in a continuous operation.
F. Bring slab surfaces to correct level with straightedge and
strikeoff. Use bull floats or darbies to smooth surface, free of
humps or hollows.
G. Maintain mesh reinforcing in approximately the middle of slab
during concrete placement operations.
H. Protect concrete work from physical damage or reduced strength
which could be caused by frost, freezing actions, or low temperatures.
I. Do not use calcium chloride, salt and other materials containing
antifreeze agents or chemical accelerators.
J. When hot weather conditions exist that would seriously impair
quality and strength of concrete, place concrete in compliance with
American Concrete Institute 305R.
K. When cold weather conditions exist that would seriously impair
quality and strength of concrete, place concrete in compliance with
04200.22
04200.23
04200.24
CONCRETE MASONRY UNITS:
A. Size: Manufacturer's standard units with nominal face dimensions
of 16" long X 8" (15 -5/8" x 7 -5/8" actual), unless otherwise
indicated. ASTM C90, Type 1. Use standard block unless one of the
following is indicated on the Drawings:
1. Split face.
2. Slump stone.
3. Fluted.
B. Special Shapes: Provide where required for comers, jambs,
control joints, headers, bonding and other special conditions,
MORTAR AND GROUT MATERIALS:
A. Portland Cement: ASTM C150, Type I, except Type III may be used
for cold weather construction. Provide natural color.
B. Mortar Aggregate: ASTM C144, except for joints less than 1/4"
use aggregate graded with 100% passing the No. 16 sieve.
C. Hydrated Lime: ASTM C207, Type S.
D. Grout Course Aggregate: ASTM C404.
E. Water: Clean, free of deleterious materials which would impair
strength or bond.
MASONRY ACCESSORIES:
A. Provide welded wire reinforcing units prefabricated in straight
lengths of not less than 10', with matching corner and tee units.
Fabricate from cold -drawn steel wire complying with ASTM A82, with
deformed continuous side rods and plain cross -rods, and a unit width
of 1-1/2" to 2" less than thickness of wall of partitions.
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inlets, structures, walks and other fixed objects.
1. Locate expansion joints at 20' o.c. for walks and curbs. Control Joints
not to exceed 5' -0 ".
2. Locate expansion joints at changes in sidewalk direction or
intersection.
A. Comply with provisions American Concrete Institute 318 "Building
code Requirements for Reinforced Concrete" and 301 "Structural
Concrete for Buildings" except where more stringent requirements are
shown or specified.
B. Form all footings and foundations. Unformed placement of
03010.37
American Concrete Institute 306R.
FINISH OF FORMED SURFACES:
A. Concrete surfaces exposed -to -view in the finish work shall not
have texture imparted by form facing material used. Repair and patch
1. Truss type fabricated with single pair of 9 ga. side rods and 9 ga.
continuous diagonal cross rods spaced not more than 16" o.c.
a. Dur -O -Wall Standard.
b. National Wire Products Corporation Standard.
B. Reinforcing Bars: Deformed steel, ASTM A 615. Grade 60 of the
02515.36
CONCRETE FINISHING:
A. After striking -off and consolidating concrete, smooth surface by
screeding and mechanical floating.
concrete is not allowed.
C. Conform to ACI 305R when concreting during hot weather.,
D. Conform to ACI 306R when concreting during cold weather.
tie holes and defective areas and chip off fins and other projections
exceeding 1/4" in height.
sizes shown.
C. Building Paper: ASTM D226 No. 15 asphalt saturated felt or ASTM
D227 No. 15 coal- tar - saturated felt.
B. After floating, test surface for trueness with a 10' straight
edge. Refloat as required to provide a continuos smooth finish.
03010.2
PRODUCTS
03010.38
MONOLITHIC SLAB FINISHES:
A. Apply float finish to monolithic slab surfaces. After screeding,
D. Cleaning Solution: Non - acidic, not harmful to masonry work or
adjacent materials.
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C. Work edges of slabs, gutters, back top edge of curb, and formed
joints with 9-1/2" radius edging tool.
D. Light Broom finish, by drawing a fine -hair broom across concrete
surface perpendicular to line of traffic.
E. Strike contraction joints in exterior slabs at a maximum of 5'
a. c. that extend 1/3 the depth of the concrete and are perpendicular
to the edges of the concrete.
F. Alternate exposed aggregate walks where noted on the drawings are
as follows:
1. In lieu of light broom finish, evenly distribute a single la er of
water worn, durable gravel, 3/8" maximum and 17" minimum of
ton /beige color.
2. Embed the aggregate by patting with a darby and float and darby
until all aggregate is thoroughly embedded just beneath the
surface.
3. Expose the aggregate as soon as the grout covering the aggregate
can be removed by simultaneously brushing the hosing with water to
match sample panel.
03010.21
03010.22
03010.23
FORM MATERIALS:
A. Forms for Concrete Surfaces: Plywood, lumber, metal, or other
industry acceptable material.
B. Provide commercial formulation form - coating compounds that will
not bond with, stain nor adversely affect concrete surfaces.
REINFORCING MATERIALS:
A. Reinforcing Bars: ASTM A -615 Grade 60, deformed.
B. Welded Wire Fabric: Plain cold -drawn welded steel wire, ASTM A-
185.
C. Provide metal bolsters, chairs and other devices for spacing,
supporting and fastening reinforcing bars and welded wire fabric in
place.
CONCRETE MATERIALS:
A. Portland Cement: ASTM C150, Type II.
B. Normal Weight - Aggregates: ASTM C33, with maximum 1 -1/2" for
footing and other mass concrete and 3/4" maximum for other concrete.
03010.39
consolidating, and leveling concrete slabs, do not work surface until
ready for floating. Begin floating when surface water has disappeared
or when concrete has stiffened sufficiently to permit operation of
power driven floats. Check and level surface plane to a tolerance not
exceeding 1/4" in 10' when tested with a 10' straightedge.
B. Provide 1/2" pitch in 4' -0" diameter of all floor drains.
CONCRETE SLAB CURING AND PROTECTION:
A. Protect freshly placed concrete from premature drying and
excessive cold or hot temperatures.
B. Provide moisture curing by one of the following methods for a
period of 7 days.
1. Cover concrete surface with specified absorptive cover, thoroughly
saturating cover with water and keeping continuously wet.
2. Cover concrete surfaces with moisture - retaining cover for curing
concrete, placed in widest practicable width.
3. Curing compounds in accordance with ASTM C -309 may be used as
directed by the Owner.
04200.25
04200.3
04200.31
MORTAR AND GROUT MIXES:
A. Do not lower the freezing point of mortar or grout by use of
admixtures or anti - freeze agents.
1. Do not use calcium chloride in mortar or grout.
B. Mortar for Unit Masonry: Comply with ASTM C270, Proportion
Specification, except limit materials to those specified herein, and
limit cement /lime ration by volume as follows:
1. Type S: Over 1/4 up to 1/2 part lime per part of portland
cement.
C. Grout for Unit Masonry: Comply with ASTM C476; 3000 psi;
strength at 28 days; 8 -10 inches slump.
EXECUTION
INSTALLATION GENERAL:
A. Thickness: Build single -wythe walls to the actual thickness of
the masonry units, using units of nominal thickness shown or
specified.
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02515.37
CURING:
A. Protect and moist cure finished concrete paving, comply with
applicable requirements of Division 3 sections.
C. Water: Clean and not detrimental to concrete.
D. Calcium Chloride: Not permitted.
E. Admixtures: Do not use without approval from Construction
Manager.
03010.310
REMOVAL OF FORMS:
A. Form work may not be removed in less than 5 days or until
concrete has attained sufficient strength to carry loads.
B. Cut masonry units with motor -driven saw designed to cut masonry
with clean sharp, unshipped edges. Cut units as required to provide
pattern shown and to fit adjoining work neatly. Use full units
without cutting wherever possible.
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02515.38 REPAIRS AND PROTECTIONS:
A. Protect concrete from premature drying, excessive hot or cold
temperatures, and mechanical injury until acceptance of work. Exclude
traffic from pavement for at least 7 days after placement.
END
DIVISION 2 - SITE WORK
SECTION 02831 CHAIN LINK FENCING AND GATES
02831.1 GENERAL
02831.11 RELATED DOCUMENTS:
A. Drawings, Specifications Division 1 and Contract.
02831.12 DESCRIPTION OF WORK:
A. Extent and height of chain link fences and gates is shown on
drawings.
03010.24
03010.25
ACCESSORIES:
A. Provide 6 mil polyethylene vapor barrier cover over prepared base
material for all floor slabs.
B. Provide base course for all floor slabs of evenly graded natural
gravel 3/8" maximum to 1/8" minimum (peo gravel) or natural sand.
C. Non - shrink Cement Grout Below Column Base Plates: Non - metallic,
flowable, high strength (4000 psi min at 7 days) conforming with CRD -C
621.
D. Membrane Curing Compound: ASTM C309.
E. Absorptive Mats: ASTM C171
F. Bonding Agent: Polymer resin emulsion.
PROPORTIONING AND DESIGN OF MIXES:
A. Use proprietary standard design mix that meets the following
qualities and furnish satisfactory evidence of such. Accompany each
mixer truck with a delivery ticket noting type of concrete and
materials. Note placement location of each load on these tickets and
03010.311 CONCRETE SURFACE REPAIRS:
A. Cut out honeycomb, rock pockets, voids over 1/4" in any
dimension, and holes left by tie rods and bolts, down to solid
concrete, but in no case, to a depth of less than 1 ". Make edges of
cuts perpendicular to the concrete surface. Thoroughly clean, dampen
with water and brush -coat the area to be patched with specified
bonding agent. Place patching mortar after bonding compound has
dried.
B. Excessive honeycomb or embedded debris in concrete is
unacceptable.
END
DIVISION 4 - MASONRY
SECTION 04200 UNIT MASONRY
04200.1 GENERAL
04200.32
C. Do not wet concrete masonry units.
D. Frozen Materials and Work: Do not use frozen materials or
materials mixed or coated with ice or frost. Do not build on frozen
work. Remove and replace masonry work damaged by frost or freezing.
E. Pattern bond: Lay masonry in running bond with vertical joint
in each course centered on units in courses above and below. Bond and
interlock each course at corners, unless otherwise shown.
F. Lay -up walls plumb and true and with courses level, accurately
spaced and coordinated with other work.
G. Stopping and Resuming Work: Rack back 1/2 - masonry unit length
in each course; do not tooth. Clean exposed surfaces of set masonry,
and remove loose masonry units and mortar prior to laying fresh
masonry.
H. As the work progresses, build -in items specified under this and
other sections of these specifications fill in solidly with masonry
around built -in items.
MORTAR BEDDING AND JOINTING:
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02831.21
PRODUCTS
STEEL FENCING:
A. Fabric: No. 9 gauge steel wires, 2" mesh, both top and bottom
selvages twisted and borded.
03010.26
file all tickets on the job site.
B. Concrete: Proportion to design strengths indicated on drawings.
CONCRETE MIXES:
A. Ready -Mix Concrete: Comply with requirements of ASTM C 94, and
as herein specified.
04200.11
04200.12
RELATED DOCUMENTS:
A. Drawings, Specifications, Division 1 and Contract.
DESCRIPTION OF WORK:
A. Extent of masonry work is indicated on Drawings.
A. Mix mortar ingredients for a minimum of five minutes in a
mechanical batch mixer. Use water clean and free of deleterious
materials which would impair the work. Do not use mortar which has
begun to set, or if more than 2 -1/2 hours has elapsed since initial
mixing. Retemper mortar during 2 -1/2 hour period as required to
restore workability.
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1. One -piece fabric widths.
2. Galvanized with not less than 1.2 ounce zinc per square foot of
surface.
B. Galvanized steel framework with not less than 1.8 ounce zinc per
square foot of surface.
C. Galvanized accessories and hardware.
1. Addition of water to the batch with insufficient slump is not
permitted.
2. When air temperature is between 85 degrees F (30 degrees C) and 90
degrees F (32 degrees C), reduce mixing and delivery time from 1-
1/2 hours to 75 minutes, and when air temperature is above 90
degrees F (32 degrees C), reduce mixing and delivery time to 60
minutes.
04200.13
PROJECT CONDITIONS:
A. Protection of work: During erection, cover top of walls with
heavy waterproof sheeting at end of each days' work. Cover partially
completed structures when work is not in progress.
B. Do not apply concentrated loads for at least 3 days .after masonry
walls are constructed.
B. Lay hollow concrete masonry units with full mortar coverage on
horizontal and vertical face shells; also bed webs in mortar in
starting course on footings and foundation walls and in all course of
piers, columns and pilasters, and where adjacent to cells or cavities
to be reinforced or to be filled with concrete or grout.
C. Joints: Maintain 318" joints and cut flush.
REwISM
02831.22
FRAMING AND ACCESSORIES:
04200.14
ENVIRONMENTAL REQUIREMENTS:
04200.33
HORIZONTAL AND VERTICAL JOINT REINFORCING:
A. End, Corner, Pull and Gate Posts: Minimum 4.0 "OD steel pipe 9.11
pounds per linear foot, .266" wall thickness.
B Line Posts: Minimum 1.9 OD steel pipe.
C. Tension Wire: 6 gauge, coated coil spring wire, metal and finish
to match fabric. Locate top and bottom of fabric.
D. Post Tops: Weothertight closure cap, one cap for each post.
E. Stretcher Bars: One piece lengths eSual to full height of
fabric, with minimum cross - section of 3/16 X 3/4 ". Provide with
bands at 15" o.c.
03010.3
03010.31
EXECUTION
FORMS:
A. Arrange and assemble form work which is readily removable without
damage to cast -in -place concrete surfaces and adjacent materials.
B. Construct forms to sizes, shapes, lines and dimensions shown, and
to obtain accurate alignment, location, grades, levels and plumb work.
Support brace and maintain formwork to support vertical and lateral
loads until such loads con be supported by concrete.
A. Perform the following construction procedures during cold weather
while the work is progressing:
1. When air temperature is from 40 degrees F (4 degrees C) to 32
degrees F (0 degrees C), heat sand or mixing water to produce
mortar temperatures between 40 degrees F (4 degrees C) . and 120
degrees F (49 degrees C).
2. When air temperature is from 32 degrees F (0 degrees C) to 25
degrees F (- 4degrees C), heat sand or water to produce mortar
temperature between 40 degrees F (4 degrees C) and 120 degrees F
A. Provide continuous horizontal joint reinforcing as shown and
specified. Fully embed longitudinal side rods in mortar for their
entire length with a minimum cover of 5/8 on exterior side of walls
and 1/2" at other locations. Lap reinforcement a minimum of 6" at
ends of units. Do not bridge control and expansion joints with
reinforcing, as otherwise indicated. Provide continuity at corners
and wall intersections by use of prefabricated "L" and "T" sections.
Cut and bend units as directed by manufacturer for continuity at
returns, offsets, and other special conditions.
"
F. Swing Gate: Perimeter frames of 1.9 OD pipe, finished to match
framework, with horizontal and vertical members to ensure proper gate
C. Use factory- fabricated, adjustable- length, removable or snap -off
metal form ties.
(49 degrees C); maintain temperature of mortar on boards above
freezing.
"
B. For single -wythe walls space reinforcing at 32 o.c. vertically.
02831.3
operation and for attachment of fabric, hardware and accessories. Use
some fabric as for fence. Provide diagonal cross - bracing consisting
of 3/8" diameter adjustable length truss rods on gates.
G. Furnish the following hardware and accessories for each gate.
1. Hinges: One and one -half pair to suit gate size, non -lift -off type
offset to permit 180 degrees gate opening.
2. Latch: Forked type and plunger -bar type to permit operations from
either side of gate, with padlock eye.
H. Privacy Slats: 2 -3/8" wide X 3/8" thick redwood.
I. Use Aluminum alloy steel wire ties spaced 12" a. c. for tying
fabric to tension wire.
J. Provide concrete with a minimum 28 -day compressive strength of
3000 psi using at least 5 -1/2 sacks of cement per cubic yard, 1"
maximum size aggregate, maximum 4" slump, and 2% to 4% entrained air.
EXECUTION
03010.32
D. Provide openings in concrete form work to accommodate work of
other trades.
PLACING REINFORCEMENT:
A. Accurately position, support and secure reinforcement against
displacement by form work, construction, or concrete placement
operations.
1. All bars shall be continuous in longest length possible with
minimum 36 bar diameter laps.
2. Bent corner reinforcing shall be provided to lop and match
horizontal reinforcement.
3. Minimum covers a for any reinforcing steel shall be 2 ". Verify
actual minimum w7llocal codes.
4. Welding for fabrication and installation and is not permitted.
B. Install welded wire fabric in as long lengths as practicable.
Lap adjoining pieces at least two full mesh and lace splices with
3. When air temperature is from 25 degrees F ( -4 degrees C) to 20
degrees F ( -7 degrees C), heat sand and mixing water to produce
mortar temperatures between 40 degrees F (4 degrees C) and 120
degrees F (49 degrees C); maintain temperature of mortar on boards
above freezing; use salamanders or other heat sources on both sides
of walls under construction; use wind breaks when wind is in excess
of 15 mph.
4. When air temperature is 20 degrees F( -7 degrees C) and below, heat
sand and mixing water to produce mortar temperatures between 40
degrees F (4 degrees C) and 120 degrees F (49 degrees C). Do no
lay units which have a surface temperature of 20 degrees F ( -7
degrees C) or below.
B. Perform the following protections during cold weather for
completed masonry and masonry not being worked on:
1. When the mean daily air temperature is from 40 degrees F (4 degrees
C) to 25 degrees F ( -4 degrees C), protect masonry from rain or
04200.34
04200.35
04200.36
CONTROL JOINTS:
A. Provide vertical control joints at maximum 20 -feet o.c.
PARGING: (Below -grade walls only):
A. Dampen masonry walls prior to purging.
B. Scarify each parging coat to ensure full bond to subsequent coot.
C. Parge masonry walls in two uniform coats of mortar to a total
thickness of 3/4 -inch.
D. Steel trowel surface smooth and flat with a maximum surface
variation of 1/8 -inch per foot.
E. Strike top edge of parging at 45 degrees.
POINTING AND CLEANING:
A. Pointing: During the tooling of joints, enlarge any voids or
holes, and completely fill with mortar. Point -up all joints at
corners, openings and adjacent work to provide a neat, uniform
WAWN BY: TIP
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BUS TYPE
K-50
FRAME
02831.31
INSTALLATION:
A. Drill holes for posts of minimum 8" diameter and spacing shown.
Excavate hole depths 3" lower then post bottom, with bottom of posts
set not less than 36" below finish grade surface.
B. Center and align posts in holes 3" above bottom. Place concrete
around posts and vibrate or tamp. Hold in vertical position during
placement and finishing operations.
C. Install brace assemblies so posts are plumb when diagonal rod is
under proper tension.
D. Install tension wires before stretching fabric and tie to each
03010.33
03010.34
wire.
INSTALLATION OF EMBEDDED ITEMS:
A. Set and build into work anchorage devices and other embedded
items required for other work that is attached to, or supported by,
cost -in -place concrete.
PREPARATION OF FORM SURFACES:
A. Coat contact surfaces of forms with a form - coating compound
before reinforcement is placed.
04200.2
snow for at least 24 hours by covering with weather - resistive
membrane.
2. When mean daily air temperature is from 25 degrees F ( -4 degrees C)
to 20 degrees F ( -7 degrees C), completely cover masonry with
insulating blankets or similar protection for at least 24 hours.
3. When mean daily temperature is 20 degrees F ( -7 degrees C) and
below, maintain masonry temperature above 32 degrees F (0 degrees
C) for 24 hours using enclosures and supplementary heat, electric
heating blankets, infrared lamps, or other acceptable methods.
PRODUCTS
appearance.
B. Cleaning: Remove excess mortar smears as work progresses.
Replace defective mortar. Match adjacent work. Clean exposed soiled
surfaces with cleaning solution. Use non - metallic tools in cleaning
operations.
END
DIVISION 5 - METALS
SECTION 05010 STRUCTURAL STEEL
JOB HUMBER
97125
PROTOTYPE ISSUE DATE
2/1/97.1
SHEET NUMBER
posts.
03010.35
FORM CLEANING:
05010.1
GENERAL
E. Install fabric on security side of fence with 2" between finish
A. Clean forms to remove foreign matter within forms.
04200.21
MASONRY UNITS, GENERAL:
S P 3