SECTION 03300

CAST-IN-PLACE CONCRETE

PART 1 GENERAL

SECTION INCLUDES

Cast-in-place concrete [building frame members] [floors] [shear walls] [elevator shaft walls] [foundation walls] [and] [supported slabs] [________].

Floors and slabs on grade.

Control, and expansion and contraction joint devices associated with concrete work [, including joint sealants].

[Equipment pads,] [light pole base,] [flagpole base,] [thrust blocks,] [and] [________________].

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

[Section 03100 - Concrete Formwork: Placement of [joint device] [joint device anchors] in formwork.]

RELATED SECTIONS

Section [______-____________]: Sidewalks, curbs and gutters.

Section 03100 - Concrete Formwork: Formwork and accessories.

Section 03200 - Concrete Reinforcement.

Section 03346 - Concrete Floor Finishing.

Section 03370 - Concrete Curing.

Section [______-____________]: Preparing concrete surfaces to receive [dampproofing] [waterproofing].

Section 05800 - Expansion Control.

[Section 07900 - Joint Sealers.]

Section [______-____________]: Mechanical items for casting into concrete.

Section [______-____________]: Electrical items for casting into concrete.

REFERENCES

ACI 301 - Structural Concrete for Buildings.

ACI 302 - Guide for Concrete Floor and Slab Construction.

ACI 304 - Recommended Practice for Measuring, Mixing, Transporting and Placing Concrete.

ACI 305R - Hot Weather Concreting.

ACI 306R - Cold Weather Concreting.

ACI 308 - Standard Practice for Curing Concrete.

ACI 3 Building Code Requirements for Reinforced Concrete.

ANSI/ASTM D994 - Preformed Expansion Joint Filler for Concrete (Bituminous Type).

ANSI/ASTM D1190 - Concrete Joint Sealer, Hot-Poured Elastic Type.

ANSI/ASTM D1751 - Preformed Expansion Joint Fillers for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types).

ANSI/ASTM D1752 - Preformed Sponge Rubber and Cork Expansion Joint Fillers for Concrete Paving and Structural Construction.

ASTM B221 - Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes and Tubes.

ASTM C33 - Concrete Aggregates.

ASTM C94 - Ready-Mixed Concrete.

ASTM C150 - Portland Cement.

ASTM C260 - Air Entraining Admixtures for Concrete.

ASTM C330 - Light Weight Aggregates For Structural Concrete.

ASTM C494 - Chemicals Admixtures for Concrete.

ASTM C618 - Fly Ash and Raw or Calcinated Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Concrete.

SUBMITTALS

Submit under provisions of Section [01300] [________].

Product Data: Provide data on joint devices, attachment accessories [, admixtures] [and] [________].

Samples:	Submit [two] [_______], [____] inch ([____] mm) long samples of [expansion/contraction joint] [and] [control joint].

Manufacturer's Installation Instructions: Indicate installation procedures and interface required with adjacent Work.

PROJECT RECORD DOCUMENTS

Submit under provisions of Section [01700] [________].

Accurately record actual locations of embedded utilities and components which are concealed from view.

QUALITY ASSURANCE

Perform Work in accordance with ACI 301.

Maintain [one copy] [[____] copies] of [each] document on site.

Acquire cement and aggregate from same source for all work.

Conform to ACI 305R when concreting during hot weather.

Conform to ACI 306R when concreting during cold weather.

FIELD SAMPLES

Provide under provisions of Section [01400] [________]. Coordinate with Section 03100.

Construct and erect a field sample for architectural concrete surfaces receiving special treatment or finish as result of formwork.

Sample Panel: Sufficient size to indicate special treatment or finish required.

****** [OR] ******

Sample Panel: Construct [two] [____] panels, [_____] feet ([____] m) long by [______] feet ([____] m) wide, to indicate special treatment or finish required.

If requested by Architect/Engineer, cast concrete against sample panel. Obtain acceptance of resultant surface finish prior to erecting formwork.

Locate [where directed] [__________________________].

Accepted sample panel is considered basis of quality for the finished work. Keep sample panel exposed to view for duration of concrete work.

Accepted sample may [not] remain as part of the Work.

COORDINATION

Coordinate work under provisions of Section [01039] [________].

Coordinate the placement of joint devices with erection of concrete formwork and placement of form accessories.

PART 2 PRODUCTS PRODUCTS

CONCRETE MATERIALS

Cement: ASTM C150, [Type I - Normal] [Type IA - Air Entraining] [Type II - Moderate] [Type IIA - Air Entraining] [Type III - High Early Strength] [Type IIIA - Air Entraining] [Type IV - Low Heat of Hydration] [Type V - Sulphate Resistant] Portland type; [________] manufactured by [________________].

Fine and Coarse Aggregates: ASTM [C33] [C330].

Water:	Clean and not detrimental to concrete.

Glass Fiber Reinforcement: [ASTM C948] [________]; [________] manufactured by [________________].

ADMIXTURES

Air Entrainment:	ASTM C260; [________] manufactured by [________________].

Chemical: ASTM C494, [Type A - Water Reducing] [Type B -Retarding] [Type C - Accelerating] [Type D - Water Reducing and Retarding] [Type E - Water Reducing and Accelerating] [Type F - Water Reducing, High Range] [Type G - Water Reducing, High Range and Retarding] admixture; [________] manufactured by [________________].

[[Fly Ash] [Calcinated Pozzolan]: ASTM C618; [____] manufactured by [________________].]

ACCESSORIES

Bonding Agent: [Polymer resin emulsion] [Polyvinyl Acetate] [Latex emulsion] [Two component modified epoxy resin] n-solvent two component polysulphide epoxy] [Mineral filled polysulphide polymer epoxy] [Mineral filled polysulphide polymer epoxy resin] [Versamid cured epoxy]; [________] manufactured by [________________].

Vapor Barrier: [6] [____] mil ([0.5] [____] mm) thick [clear polyethylene film] [fabric reinforced plastic film] [________________], type recommended for below grade application; [________] manufactured by [_______________].

Non-Shrink Grout: Premixed compound consisting of non-metallic aggregate, cement, water reducing and plasticizing agents; capable of developing minimum compressive strength of [2,400] [____] psi ([17] [____] MPa) in 48 hours and [7,000] [____] psi ([48] [____] MPa) in 28 days; [________] manufactured by [________________].

JOINT DEVICES AND FILLER MATERIALS

Joint Filler [Type [A] [____]]: [ASTM D1751] [ASTM D994]; Asphalt impregnated fiberboard or felt, [1/4] [____] inch ([6] [____] mm) thick; tongue and groove profile; [________] manufactured by [________________].

Joint Filler [Type [B] [____]]: [ASTM D1752;] Closed cell [polyvinyl chloride] [molded vinyl] foam, resiliency recovery of 95 percent if not compressed more than 50 percent of original thickness; [________] manufactured by [________________].

Joint Filler [Type [C] [____]]: [ASTM D1752;] Premolded sponge rubber, fully compressible with recovery rate of minimum 95 percent; [________] manufactured by [________________].

Construction Joint Devices: Integral [galvanized steel] [extruded plastic]; [___] inch ([___] mm) thick, formed to tongue and groove profile, [with removable top strip exposing sealant trough,] knockout holes spaced at [6] [___] inches ([150] [___] mm), ribbed steel spikes with tongue to fit top screed edge; [__________] manufactured by [_______________].

Expansion [and Contraction] Joint Devices: ASTM B221 [_________] alloy, extruded aluminum; resilient [elastomeric] [vinyl] [neoprene] filler strip with a Shore A hardness of [35] [___] to permit plus or minus [25] [___] percent joint movement with full recovery; [[extruded aluminum] [vinyl] cover plate,] of longest manufactured length at each location, [flush] [recessed] mounted; [__________] color [as selected]; [__________] manufactured by [_______________].

Sealant and Primer: [________] type, as specified in Section 07900.

****** [OR] ******

Sealant:	[ASTM D1190;] [Hot applied] [rubber] [synthetic rubber] [asphalt] [polymer based asphalt] [coal tar and rubber] compound; [________] manufactured by [________________].

****** [OR] ******

Sealant:	[Cold applied] [two part liquid neoprene] [________]; [________] manufactured by [________________].

CONCRETE MIX

Mix and deliver concrete in accordance with ASTM C94, Alternative No. [2] [3].

****** [OR] ******

Mix concrete in accordance with [ACI 304] [________]. Deliver concrete in accordance with ASTM [C94] [________].

Select proportions for normal weight concrete in accordance with ACI 301 [Method 1] [Method 2] [Method 3].

****** [OR] ******

Select aggregate proportions for light weight concrete in accordance with [ACI 330] [ACI 301] [ACI 318].

Provide concrete to the following criteria:

Compressive Strength (7 days): [________] psi ([________] MPa)

Compressive Strength (28 days): [________] psi ([________] MPa).

Slump:	[____] to [____] inches ([____] to [____] mm).

[Minimum Water/Cement Ratio: [________].]

[Glass Fiber Reinforcement: [______________].]

Use accelerating admixtures in cold weather only when approved by Architect/Engineer. Use of admixtures will not relax cold weather placement requirements.

Use calcium chloride only when approved by Architect/Engineer.

Use set retarding admixtures during hot weather only when approved by Architect/Engineer.

Add air entraining agent to normal weight concrete mix for work exposed to exterior.

****** [OR] ******

CONCRETE MIX

Mix and deliver concrete in accordance with ASTM C94, Alternative No. 1.

****** [OR] ******

Mix concrete in accordance with [ACI 304] [________]. Deliver concrete in accordance with ASTM [C94] [________].

Provide concrete to the following mix design:

Unit	Measurement

Compressive Strength (7 day) [____] psi ([____] MPa) Compressive Strength (28 day) [____] psi ([____] MPa) Coarse Aggregate	[____] percent by volume Fine Aggregate	[____] percent by volume [Glass Fiber Reinforcement [____] percent by volume] Water/Cement Ratio (maximum) [____] by weight (mass) Aggregate Size (maximum) [____] inch ([____] mm) Aggregate Size (minimum) [____] inch ([____] mm) Air Entrainment [____] percent

Admixture	[____] type

Admixture	[____] type

Slump - Plus or minus 1 inch

(50 mm)	[____] inches ([____] mm)

Use accelerating admixtures in cold weather only when approved by Architect/Engineer. Use of admixtures will not relax cold weather placement requirements.

Use calcium chloride only when approved by Architect/Engineer.

Use set retarding admixtures during hot weather only when approved by Architect/Engineer.

Add air entraining agent to normal weight concrete mix for work exposed to exterior.

PART 3 EXECUTION

EXAMINATION

Verify site conditions under provisions of Section [01039] [________].

Verify requirements for concrete cover over reinforcement.

Verify that anchors, seats, plates, reinforcement and other items to be cast into concrete are accurately placed, positioned securely, and will not cause hardship in placing concrete.

PREPARATION

Prepare previously placed concrete by cleaning with steel brush and applying bonding agent in accordance with manufacturer's instructions.

In locations where new concrete is dowelled to existing work, drill holes in existing concrete, insert steel dowels and pack solid with non-shrink grout.

PLACING CONCRETE

Place concrete in accordance with [ACI 304] [ACI 301] [ACI 318].

Notify Architect/Engineer minimum 24 hours prior to commencement of operations.

Ensure reinforcement, inserts, embedded parts, formed joint fillers [, joint devices] and [__________] are not disturbed during concrete placement.

Install vapor barrier under interior slabs on grade.	Lap joints minimum [6] [____] inches ([150] [____] mm) and seal watertight by [sealant applied between overlapping edges and ends] [taping edges and ends] [______________].

Repair vapor barrier damaged during placement of concrete reinforcing. Repair with vapor barrier material; lap over damaged areas minimum [6] [____] inches ([150] [____] mm) and seal watertight.

Install joint fillers [, primer and sealant] in accordance with manufacturer's instructions.

Separate slabs on grade from vertical surfaces with [____]

inch ([____] mm) thick joint filler.

Extend joint filler from bottom of slab to within [1/2] [1/4] [1/8] [____] inch ([13] [6] [3] [____] mm) of finished slab surface. Conform to Section [07900] [________] for finish joint sealer requirements.

Install joint devices in accordance with manufacturer's instructions.

Install construction joint device in coordination with [floor slab] [__________] pattern placement sequence. Set top to required elevations. Secure to resist movement by wet concrete.

Installl joint device anchors. Maintain correct position to allow joint cover flush with [floor] [and] [wall] finish.

Install joint covers in [one piece] [longest practical] length, when adjacent construction activity is complete.

[Apply sealants in joint devices in accordance with Section 07900.]

Maintain records of concrete placement. Record date, location, quantity, air temperature, and test samples taken.

Place concrete continuously between predetermined expansion, control, and construction joints.

[Do not interrupt successive placement; do not permit cold joints to occur.]

Place floor slabs in [checkerboard] [__________] pattern indicated.

[Saw cut joints within 24 hours after placing. Using 3/16 inch thick blade, cut into [1/4] [____] depth of slab thickness.]

Screed [floors] [and] [slabs on grade] level, maintaining surface flatness of maximum [1/4] [____] inch in 10 ft ([6] [____] mm /3 m).

SEPARATE FLOOR TOPPINGS

Prior to placing floor topping, [roughen substrate concrete surface and] remove deleterious material. Broom and vacuum clean.

Place required [dividers] [edge strips] [reinforcing] [________] and other items to be cast in.

[Apply bonding agent to substrate in accordance with manufacturer's instructions.]

****** [OR] ******

[Apply sand and cement slurry coat on substrate immediately prior to placing toppings].

Place concrete floor toppings to required lines and levels. [Place topping in checkerboard panels, dimension not to exceed [20] [____] ft ([6] [____] m).]

Screed toppings level, maintaining surface flatness of maximum [1/8] [____] inch in 10 ft ([3] [____] mm /3 m).

CONCRETE FINISHING

Provide formed [concrete surfaces to be left exposed] [concrete [walls] [columns] [beams] [joists] [________]] with [smooth rubbed][________] [sand float] [sack rubbed] finish [as Scheduled in this Section].

Finish concrete floor surfaces to requirements of Section [03346] [________].

****** [OR] ******

Finish concrete floor surfaces in accordance with [ACI 301] [________].

Wood float surfaces which will receive [quarry tile] [ceramic tile] [terrazzo] [________] with full bed setting system.

Steel trowel surfaces which will receive [carpeting] [resilient flooring] [seamless flooring] [thin set quarry tile] [thin set ceramic tile] [________________].

Steel trowel surfaces which are scheduled to be exposed.

In areas with floor drains, maintain floor elevation at walls; pitch surfaces uniformly to drains [at [1/8] [1/4] [____] inch per foot ([10] [20] [____] mm per m) nominal] [as indicated on Drawings].

CURING AND PROTECTION

Immediately after placement, protect concrete from premature drying, excessively hot or cold temperatures, and mechanical injury.

Maintain concrete with minimal moisture loss at relatively constant temperature for period necessary for hydration of cement and hardening of concrete.

Cure concrete floor surfaces to requirements of Section [03370] [________].

****** [OR] ******

Cure floor surfaces in accordance with [ACI 308] [________].

Ponding:	Maintain 100 percent coverage of water over floor slab areas continuously for [4] [____] days.

Spraying: Spray water over floor slab areas and maintain wet for [7] [____] days.

FIELD QUALITY CONTROL

Field [inspection and] testing will be performed in accordance with ACI 301 and under provisions of Section [01400] [________].

Provide free access to Work and cooperate with appointed firm.

Submit proposed mix design [of each class of concrete] to [inspection and] testing firm for review prior to commencement

of Work.

Tests of cement and aggregates may be performed to ensure conformance with specified requirements.

Three concrete test cylinders will be taken for every [75 or less] [100 or less] [________] cu yds ([57 or less] [76 or less] [________] cu m) [of each class] of concrete placed.

One additional test cylinder will be taken during cold weather concreting, cured on job site under same conditions as concrete it represents.

One slump test will be taken for each set of test cylinders taken.

PATCHING

Allow Architect/Engineer to inspect concrete surfaces immediately upon removal of forms.

Excessive honeycomb or embedded debris in concrete is not acceptable. Notify Architect/Engineer upon discovery.

Patch imperfections [as directed] [in accordance with ACI 301] [________________].

DEFECTIVE CONCRETE

Defective Concrete: Concrete not conforming to required lines, details, dimensions, tolerances or specified requirements.

Repair or replacement of defective concrete will be determined by the Architect/Engineer.

Do not patch, fill, touch-up, repair, or replace exposed concrete except upon express direction of Architect/Engineer for each individual area.

SCHEDULE - CONCRETE TYPES AND FINISHES

Foundation Walls: 3,000 psi 28 day concrete, form finish with honeycomb filled surface.

Underside of Supported Floors and Structure Exposed to View: 4,000 psi 28 day concrete, sack rubbed finish.

Exposed Portico Structure: 4,000 psi 28 day concrete, air entrained, smooth stone rubbed finish.

SCHEDULE - JOINT FILLERS

Basement Floor Slab Perimeter: Joint filler Type A set 1/8 inch below floor slab elevation.

Exterior Retaining Wall at Loading Dock:	Joint filler Type F recessed 3/8 inch with sealant cover.

END OF SECTION