12.25 CAST-IN-PLACE CONCRETE (MINOR CONSTRUCTION)

560.016.025 03 31 18-1

SECTION 03 31 18

CAST-IN-PLACE CONCRETE (MINOR CONSTRUCTION)

PART 1 - GENERAL

1.01 DESCRIPTION

A. Under this Section, the Contractor shall furnish all labor, materials and equipment for plain and reinforced Cast-In-Place Concrete (Minor Construction) work including accessory items of work herein described, as shown on the Plans, as specified, and/or directed.

1.02 APPLICABLE SPECIFICATIONS, CODES AND STANDARDS

A. Reference to standard specifications for the following organizations is intended to specify minimum standards for quality of materials and performance of workmanship, and for standard test methods.

1. American Society for Testing and Materials (ASTM) Latest Edition.

2. American Concrete Institute (ACI) Standards, Latest Edition.

3. American Welding Society, Inc. (AWS) Publications Latest Edition.

4. Standard Specifications - Construction and Materials, New York State

Department of Transportation, Latest Edition, including Addenda thereto.

PART 2 - PRODUCTS

2.01 MATERIALS

A. All materials shown, specified or required to be incorporated in cast-in-place concrete shall be of finest quality, and shall be delivered, stored and handled so as to prevent damage.

B. Portland Cement shall be a standard brand in compliance with ASTM C150 Type I.

Only one brand shall be used for exposed work. Generally, Type I cement shall be used; however, Types II or III may be employed with the approval of the Engineer or if shown, or specified.

C. Fine Aggregates shall be clean, sharp, natural sand, free from loam, clay, organic impurities or frozen materials and shall conform to ASTM C33 in all respects. Sand shall be tested for impurities in accordance with ASTM C40.

D. Coarse Aggregates shall consist of strong, clean, crushed limestone or crushed gravel, free from harmful material and meeting all of the requirements of ASTM C33. Coarse aggregate shall also comply with New York State Department of Transportation Material Designation 703-02. Crushed limestone and crushed gravel

CAST-IN-PLACE CONCRETE (MINOR CONSTRUCTION) 12.25

03 31 18-2 560.016.025 shall meet the Physical Requirements (Testing) Designation 703-0201 and 703- 0202, respectively.

E. Water used in mixing concrete shall be clean and free from all acid, alkali or organic matter and shall be obtained from a public water supply unless specifically permitted otherwise by the Engineer.

F. Ready Mix Concrete shall comply with ASTM Specification C94, this Specification, and used subject to the Engineer's approval.

G. Admixtures, where shown or specified, shall be as follows:

1. Air entraining agent shall be "Daravair" or "Darex AEA" as manufactured by W.R. Grace Co., or Master Builder's "MBVR", or equal.

2. Water reducing agent shall be Sika "Plastiment", Master Builder's

"Pozzolith", W.R. Grace's "WRDA", or equal.

3. High range water reducers or superplasticizers shall be Sika "Sikament-FF", W.R. Grace's "Daracem-100" or "WRDA-19", or equal.

H. Bonding Agent, where shown or specified, shall be "Dural 104" bonding compound manufactured by Dural International Corporation, "Sikadur 32 Hi Mod" by Sika Corporation, or equal.

I. Forms shall be wood, metal, or other approved materials as follows:

1. Plywood shall be Commercial Standard Douglas Fir, moisture resistant, concrete form plywood, at least 5-ply 5/8" thick.

2. Metal forms shall be as approved, and must produce surfaces equal to those specified for wood forms.

3. Form oil shall be an approved non-staining mineral oil, such as "Duogaurd

II" by W.R. Meadows, or equal.

4. Form ties shall be of approved design, adjustable length and free of devices that will leave hole or depression larger than 7/8" diameter. When forms are removed no metal shall be left within 1" of finished surface.

J. Premolded Filler, where shown or specified, shall be premolded, resilient, non-extruding type, 1/2-inch thick unless shown otherwise, full depth of concrete section as manufactured by Celotex Corporation, "Fibre Expansion Joint Filler" by W.R.

Meadows, or equal.

1. Sample of the premolded filler proposed to be used shall be submitted to the

Engineer for approval.

K. Joint Sealant, where shown or specified, shall be elastomeric polyurethane sealant material, black in unexposed locations, and grey in exposed locations, and have balanced properties of elongation recovery and tensile strength, and shall be Sonneborn "Sonolastic NP1", Sika "Sikaflex 1A", or equal.

L. Protective Covering for concrete finish slabs, where shown or specified, shall be "Orange Label Sisalkraft", Polyethylene Film as manufactured by Fortifiber Corp., or equal.

560.016.025 03 31 18-3

M. Non-Shrink Grout, where shown or specified, shall be non-metallic, natural aggregate such as "Masterflow" as manufactured by Master Builders, "SikaGrout 212" as manufactured by Sika, or approved equal.

1. Non-Shrink grout shall be used under structural steel column baseplates and all equipment baseplates. All work shall be done in strict accordance with the manufacturer's recommendations. At the request of the Engineer, the manufacturer's representative shall be called to the job site for consultation regarding detailed use of the grout.

N. Liquid Hardener, where shown or specified, shall be "Lapidolith" as manufactured by Sonneborn, "Emery Top" as manufactured by L&M Construction Chemicals, Inc., or equal, and shall be compatible with later finishes.

O. Curing Compound shall be acrylic based "Kure-N-Seal" as manufactured by Sonneborn, acrylic based "CS-309", or water based "VOCOMP-20" as manufactured by W.R. Meadows, or equal.

P. Vapor Retarder, where shown or specified, shall be "Moistop" as manufactured by Fortifiber Corp. Vapor Barrier shall be "Premoulded Membrane Vaporseal" as manufactured by W.R. Meadows, or equal.

Q. Perimeter Insulation, where shown or specified, shall be "Styrofoam Square Edge" as manufactured by the Dow Chemical Corporation, "Foamular 250" as manufactured by UC Industries, or equal.

R. Abrasive Grits, where shown or specified, shall be "Korundum" by Concrete Service Materials Company, or equal.

S. Metal Slab Joints, where shown or specified, shall be keyed type, minimum 18 gauge, galvanized steel by Heckmann Building Products, or equal.

2.02 SUBMITTALS: Submit the following:

A. Certificates of Compliance:

1. Cement, mill test reports

2. Aggregates, sieve analyses

B. Product Data and Samples:

1. Submit manufacturer's information for any material listed under Section 2.01 that will be incorporated into this project.

2. Submit samples as indicated in Section 2.01.

C. Concrete mix design and compressive strength results of field trial batches for each class of concrete incorporated into the work.

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2.03 CONCRETE TESTING

A. The Contractor shall employ an approved commercial testing laboratory at his own expense to provide field sampling, testing and inspection of all concrete. Continuous inspection by the approved testing laboratory shall be provided during all concrete pours. The Contractor shall maintain a record set of plans at the site showing date and amount of each pour, test results and temperature. If any portion of the work shows low test results, the Engineer may require additional testing, load tests, cored samples, and/or replacement of the faulty work, etc., at the Contractor's expense.

B. Field concrete inspection: The Contractor, thru its approved testing laboratory, shall provide a competent field concrete inspector whose minimum duties shall be as follows:

1. Collect and verify with each batch of concrete, before unloading at the site, a delivery ticket on which is printed, stamped, or written, information concerning said concrete. Have available for Engineer to review if requested.

2. Check each truck on arrival to make sure that the concrete is not retempered.

3. Make necessary slump tests for uniformity control.

4. Make air tests and yield tests as required.

5. Make any and all test cylinders as may be required in the Specifications.

6. Transport cylinders from the site to the laboratory.

7. Notify the Engineers and/or his representative if any test results vary from the specified limits.

C. Tests:

1. Concrete shall be tested by an approved testing laboratory as follows:

a. Standard 6" x 12" compression cylinders shall be in compliance with C-39 in sets of four and shall be moist cured. Break 2 at 7 days, and 2 at 28 days. One set shall be made for approval of each mix design, one set for first pour of 50 cubic yards or less, and one set for each additional pour of 50 cubic yards. If less than 50 cubic yards are placed in one day, one set shall be made for each day's pour.

b. All test cylinders shall be cast, moist cured and broken under laboratory conditions in accordance with the ASTM C31 and ASTM C39. All four cylinders of a test shall be taken from the middle third of a single load. Each cylinder shall be properly labeled with an identifying mark, the mix proportions, air content, amount of water, slump, and the location in the structure where the concrete was placed. Test reports shall include all this information. Distribute copies of reports as requested by the Engineer. Should any results be questionable, the Engineer shall be notified immediately so that corrective measures can be taken. Any test cylinder which has broken and fails to meet requirements shall be preserved for inspection by the Engineer.

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2.04 INSPECTION

A. Before each pour, forms and reinforcing shall be inspected and approved by the Engineer. The Contractor shall give at least 24 hours notice before such an inspection is required. No pour shall be started until the Engineer has given approval. No concreting may be done in the absence of the Engineer without written permission of the Engineer.

2.05 CONCRETE MIX DESIGN

A. The various classes of concrete shall be designated as follows:

MAXIMUM PERMISSIBLE WATER-CEMENT RATIOS FOR

CONCRETE (WHEN STRENGTH DATA FROM TRIAL BATCHES OR FIELD

EXPERIENCE ARE NOT AVAILABLE)

CLASS MIN. 28-DAY

COMPRESSIVE

STRENGTH IN

PSI*

NON-AIR-ENTRAINED CONCRETE AIR-ENTRAINED CONCRETE

ABSOLUTE

RATIO BY

WEIGHT

US GAL. PER

94-LB. BAG OF

CEMENT

ABSOLUTE

RATIO BY

WEIGHT

US GAL. PER

94-LB. BAG OF

CEMENT

A 5,000 ** ** ** **

B 4,000 0.44 5.0 0.35 4.0

C 3,000 0.58 6.6 0.46 5.2

D 2,500 0.67 7.6 0.54 6.1

E 2,000 0.71 8.0 - -

* 28-day strength. With most materials, water/cement ratios shown will provide average strengths greater than indicated in Section 5.4 of A.C.I. 318R-89 as being required.

** For strength above 4,500 psi (non-air-entrained concrete) and 4,000 psi (air-entrained concrete) proportions shall be established by methods of Sections 5.3 or 5.4 of A.C.I.

Building Code (A.C.I. 318R-89).

Unless otherwise specified, all concrete shall be Class "B", non-air-entrained except exposed concrete which shall be air-entrained. When foundation walls or grade beams are exposed to weather above grade, the entire wall shall be considered exposed concrete.

B. Maximum size aggregates shall be used as follows unless otherwise designated by the Engineer.

1. 1-1/2" general work

2. 3/4" thin sections; heavy reinforcing; slabs

3. 3/8" floor toppings

C. Slump - Maximum:

1. Reinforced concrete - general 4"

2. Reinforced concrete - thin walls, columns 5"

3. Non-reinforced concrete 3"

4. Pavements, including sidewalks 3"

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D. Air Content: Use an approved air entraining admixture. The entrained content shall be controlled between 4% - 6%. See Plans for concrete work requiring air entrainment.

1. For mixes containing coarse aggregate with a top size of 3/4" or smaller and for exposed concrete subject to frost and salt action, air contents shall be increased to the range of 5% - 7%.

PART 3 - EXECUTION

3.01 BATCHING AND MIXING

A. The Contractor shall have available at all times, sufficient approved materials such that, when once started, concreting shall be a continuous operation until the placing of the panel or section is completed. The top surface shall be generally level. When construction joints become necessary, they shall be made as hereinafter specified.

B. All concrete shall be mixed not less than 60 revolutions in the drum of a modern power mixer, at the rated speed of rotation. Mix not less than an additional 30 revolutions after the addition of any further water to the mix.

C. Transit-mixed concrete shall be transported to the job site unmixed and only after arrival at the job site shall mixing begin. All concrete shall be unloaded from the mixer within 45 minutes after completion of mixing. All concrete still remaining in the truck shall be rejected.

D. The total time interval from the time the cement makes contact with the aggregate to the complete unloading from the mixer shall not exceed 90 minutes, unless such time is extended by the Engineer. The time may be reduced in hot weather or under unusual conditions, if unsatisfactory results are obtained.

3.02 FORMWORK

A. The Contractor shall design and construct suitable and adequate formwork in conformance with A.C.I. 347R-88. All shoring shall be properly braced to safely withstand all vertical, moving and lateral forces during the construction period.

Responsibility for adequacy and safety rests with the Contractor. Materials shall be as stated in Paragraph 2.1.

B. Set forms true to line and grade and make mortar-tight. Chamfer above grade exposed joints, edges, and external corners of concrete 3/4-inch, unless otherwise indicated. Before concrete placement, coat the contact surfaces of forms with a non-staining form coating compound. Do not use mineral oil on formed surfaces to be painted. Prevent concrete damage during form removal. Concrete for footings may be placed in excavations without forms upon inspection and approval by the Engineer. Excavation width shall be a minimum of 4 inches greater than finished dimensions indicated.

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C. It shall be the Contractor's responsibility to determine the time at which forms may be removed without endangering the structure, subject to the following limitations, unless documentation is provided to modify these requirements:

1. Footing forms - 24 hours minimum; continue curing as specified.

2. Wall forms - 2 days minimum for ten (10) feet high. Add one (1) day for each additional five (5) feet of height; continue curing as specified.

3.03 JOINTS FOR CONCRETE

A. Expansion Joints:

1. Expansion joints shall be constructed where shown and as directed.

Reinforcement, corner protection angles or other fixed items embedded or bonded into concrete shall not be run continuously through expansion joints.

Reinforcement shall be discontinued 2 inches from the joint face. A slightly rounded edging shall be provided to finish neatly all edges around expansion joints.

2. Preformed expansion joint filler material and sealant, where shown on the drawings, shall be as specified in Paragraph 2.1.

B. Construction Joints:

1. The location of construction joints shall be chosen by the Contractor and shall be subject to the Engineer's approval except where specifically located on the Plans. Horizontal construction joints in walls will not be permitted.

2. Reinforcing shall be discontinuous through a construction joint, unless otherwise noted on drawings. As shown or specified on the drawings, additional No. 3 reinforcing bars spaced at 12-inches on center shall be placed horizontally in each construction joint at the center of the section.

These bars shall be 4-feet long and shall extend 2-feet on each side of the joint. Reinforcement projecting through joint shall be kept clean. As indicated on the drawings, all construction joints shall be provided with a keyway.

3. As indicated on drawings, a metal keyed floor slab joint may be used.

C. Contraction (Control) Joints.

1. Contraction joints shall be located as shown on the drawings or as directed.

Reinforcement through the joint shall be continuous as shown on the drawings and/or as directed by the Engineer.

2. Sawcut contraction joints (Type "A") shall be made by cutting the concrete surface and filling with the sealant material as specified under paragraph 2.1.

Cutting shall be done after the surface is firm enough not to be damaged by the cutting blade. Time of cutting shall be approved by the Engineer.

3. Formed contraction joints (Type "B") shall be made by tooling with a 1/4-inch radius edging tool and filled with the sealant material as specified under paragraph 2.1.

4. Premolded Contraction Joints (Type “C”) shall be "Kold-Seal Zipper Strip" by Vinylex or "Zip Cap Control Joint" by Greenstreak Products, or equal.

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3.04 INSERTS AND SLEEVES

A. The Contractor shall cooperate with all other Contractors in permitting the placing of all necessary sleeves, conduit, or inserts for hangers for their trades. The Contractor shall notify the trades of all pours in ample time for the responsible Contractor to place all embedded items, sleeves, slots, holes or chases.

B. Accurately set all slots, chases, anchor bolts, opening, etc. All inserts for hanging mechanical equipment shall be provided and set by the Contractor for the trade involved. All sleeves for piping passing through floors and walls shall be provided by the Contractor for the trade involved and set by the General Contractor.

C. All conduit which must be placed in concrete slabs shall be installed after, and above the bottom reinforcing, but before, and under the top reinforcing. Where conduit cross-overs are necessary, they shall be located so that reinforcing is not displaced from its specified position.

D. If, in the judgement of the Engineer, embedded items are located or grouped in a manner that will weaken the structure, the Contractor shall take the necessary corrective steps.

E. All inserts and sleeves where the outside diameter is greater than the spacing between the reinforcing steel, the reinforcing bars shall be warped around such inserts and sleeves. Unless shown otherwise on the drawings, provide, as a minimum, two #4 diagonal bars per face at 90 degrees to each other all around the inserts and sleeves.

F. Where openings are left in new concrete or are made in existing concrete for the insertion of wall castings, pipes or other fixtures, the space around these fixtures shall be made watertight by completely filling with a non-shrinking concrete containing an admixture of "SikaSet-C", "Anti-Hydro" Concrete Waterproofing Agent, or equal.

3.05 CONVEYING AND PLACING CONCRETE

A. The placing or depositing of all concrete shall be done in accordance with A.C.I.

304R-89 "Guide for Measuring, Mixing, Transporting and Placing Concrete" and as modified herein.

B. Before placing concrete, all debris, water, snow and ice shall be removed from places to be occupied by concrete. Wood forms shall be wetted except in freezing weather or oiled, and the reinforcement cleaned of ice or other coatings.

C. Conveying, transporting, and placing shall be done as rapidly as practicable and without segregation, loss of ingredients, and without unnecessary rehandling. The tempering of concrete will not be permitted.

D. Spade and work the coarse aggregate away from forms and work concrete around reinforcement to avoid air pockets, voids, and honeycombed sections. The use of a mechanical vibrator is mandatory, but concrete must not be over-vibrated. Hand

560.016.025 03 31 18-9 spading will be required in addition to mechanical vibration. Maintain spare vibrator(s) at site for use in case of breakdowns.

E. Screed all work to level surfaces at the proper elevations. Rake surfaces to provide bond for floor finishes where specified.

F. No concrete shall be deposited under water without written permission of the Engineer and then only in accordance with his directions. Proper tremie equipment and techniques must be used, should the need arise.

3.06 PROTECTION AND CURING

A. All concrete shall be protected against injury by sun, rain, freezing, mechanical damage, or premature drying. All concrete shall be maintained above 50oF in a moist or wet condition for at least the first 7 days after placement.

B. On vertical surfaces keep forms on, or cover with burlap blankets, kept wet.

C. On horizontal surfaces and floors to receive later finishes, cover with wet burlap, wet sand, or curing paper and keep saturated. Cement finish floors shall be covered with protective covering material with lapped and sealed edges after the concrete has set sufficiently to carry worker's weight. Covering shall remain in place until floor is cleaned. Weight covering with planks as required to hold it in place.

D. Cold weather protection shall conform to A.C.I. 306R-88 "Cold Weather Concreting" except as herein modified.

1. Prior to pouring, it shall be the Contractor's responsibility to keep the forms free from snow, ice, mud or debris at all times, by means of covers, enclosures, live steam or heating below the forms, as necessary. Use of torches, open flames, salts, straw, hay or chemical is prohibited.

2. When air temperature is 40oF, or less, use only heated concrete, delivered to the forms at temperatures between 65oF and 85oF. All portions of freshly poured concrete shall be continually maintained at a temperature of not less than 50oF for seven days. Specified temperature shall be maintained by heated enclosures, insulating blankets, insulated forms, or whatever approved methods are required to attain the specified result.

3. Concrete shall not be poured on frozen soil. After pouring, protect against freezing and heaving of subgrade. Any frozen concrete will be rejected and removed at the Contractor's expense. Accelerating admixtures shall not be accepted in lieu of winter protection.

E. Hot weather protection shall conform to A.C.I. 305R-89 "Hot Weather Concreting" except as modified herein.

1. During warm dry weather special care and precautions should be taken to prevent premature setting which may cause shrinkage and surface checking.

No concrete shall be placed at temperatures above 90oF without approval of the Engineer.

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F. No water (except curing spray) shall be allowed to come in contact with the concrete or masonry surface for a minimum of 24 hours. Should the rising water place a stress on the concrete, proper bracing shall be provided. Loading shall not occur without prior approval by the Engineer, and proper safety precautions shall be the responsibility of the Contractor.

G. Curing compound may be used as specified in Paragraph 2.1 provided discoloration does not occur and application is in accordance with manufacturer's direction and is compatible with concrete finish.

3.07 SLABS ON GROUND

A. Subgrade and base to be prepared as specified in Contract Documents.

B. Form depressed ribs under partitions as required by sloping gravel, or provide permanent side forms to retain gravel.

C. Trench subgrade for electric conduit as detailed on Plans. All reinforcing shall be above electric conduit.

D. Place slabs of thickness shown on Plans, vibrate, screed, float level, and finish as specified below.

3.08 CONCRETE FINISHES - FORMED SURFACES

A. After the forms are removed, all concrete surfaces shall be inspected, and any poor joints, voids, stone pockets or other defective areas noted by the Engineer shall be repaired immediately at the Contractor's expense by cutting away the unsound area to a minimum depth of 1 inch, and refilling with mortar mixed using the same brand of cement as the original pour. Edges of the patch shall be square with the face, with feather-edging prohibited. Obtain approval of corrective action prior to repair.

B. Care shall be taken to saturate the patched area and holes shall be filled in 1/2-inch layers with a delay for an initial set to take place before the succeeding layer is applied. If, in the opinion of the Engineer, improper consolidation is too extensive, or if the structure appears weakened by the voids, complete removal of the concrete in question may be required. Patches shall be kept moist for a minimum of three days.

3.09 FLOOR AND SLAB FINISHING

A. Finished floors and slabs shall be level to within 1/8" of finish floor elevation in ten feet. If this variation occurs, it must not be abrupt, but must taper so that the 1/8" variation takes place in not under 4 feet. Areas with drains shall have the surfaces sloped uniformly and true to the effect that no surface ponding occurs. If required by the Engineer, replace, grind or furnish underlayment to correct the variation, at the Contractor's expense. All floors and slabs shall be cured and protected as specified.

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B. Under quarry tile and ceramic tile screed and float top surface of slab, after concrete has been compacted, to accurate lines and levels as required to receive these materials. Floors receiving a tile finish are indicated on the Plans.

C. Where exposed concrete finish is specified, provide a steel troweled finish. After concrete has set sufficiently to carry the weight of the workman, float with motor-driven rubber disc machine to thoroughly compact and close any surface voids.

D. Dusting with dry cement or cement sand mixtures, to hasten drying, is prohibited.

Dry time shall be controlled by controlling the water content and slump of the concrete when placed.

E. Liquid hardener, as specified in Paragraph 2.1, shall be applied to exposed concrete finish floors where shown on the Contract Drawings. Cure floors thoroughly.

Hardener shall be applied in accordance with Manufacturer's directions in at least two coat application, allowing 24 hours between coats. Coverage, for each coat, shall be one gallon per 100 square feet. After final coat is complete and dry, remove surplus hardener by scrubbing and mopping with water.

F. A float finish shall be applied to all exterior concrete and those areas not intended for occupancy, such as culvert inverts, bottoms of manholes and catch basins, pads, etc.

Sidewalks, walkways, or exterior ramps shall be given a broom finish, perpendicular to traffic, sufficient to leave marks without appreciable disturbance of the surface.

3.10 MISCELLANEOUS CONCRETE WORK

A. Pour all sump pits, canopies, copings and provide all other miscellaneous concrete and cement work shown on the drawings. All such concrete shall be reinforced as shown. Provide all cement filled stair treads as detailed. Place bottoms and walls of pits and trenches monolithically.

B. Concrete Walks: Provide 4 inches thick minimum. Provide contraction joints spaced every 5 linear feet, unless otherwise indicated. Cut contraction joints 3/4-inch deep with a jointing tool after the surface has been finished. Provide 1/2-inch thick transverse expansion joints at changes in direction, where sidewalk abuts curb, steps, rigid pavement, or other similar structures. Provide a transverse slope of 1/4-inch per foot and limit variation in cross section to 1/4-inch in 5 feet unless otherwise indicated.

C. Curbs and Gutters: Provide contraction joints spaced every 10 feet maximum, unless otherwise indicated. Cut contraction joints 3/4-inch deep with a jointing tool after the surface has been finished. Provide expansion joints 1/2-inch thick and spaced every 100 feet maximum, unless otherwise indicated. Provide a broom finish.

D. Equipment Bases: Unless otherwise shown, all equipment shall be erected on bases of Class "B" concrete. Thickness shall be as noted on the Plans, but at no time shall it measure less than 1 inch.

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E. Concrete Stairs, Steps and Platforms: Stairs, steps and platforms shall be formed to required profiles shown on the Plans. Place reinforcing as required. Finish of stairs and steps shall be monolithic. Where shown on Plans, provide for nosings. Exterior stairs, steps and platforms shall have a non-slip finish. Before final troweling, embed abrasive grits, as specified in Paragraph 2.1, in the surface.

END OF SECTION

12.25 PIPING SYSTEMS

560.016.025 22 05 10-1

SECTION 22 05 10

PIPING SYSTEMS

PART 1 - GENERAL

1.01 DESCRIPTION

A. Under this Section, the Contractor shall furnish all labor, materials and equipment for Piping Systems, as shown on the Plans, as specified and/or directed.

1.02 REFERENCES

A. The publications listed below and their latest revisions form a part of this Specification to the extent referenced. The publications are referred to in the text by the basic designation only.

1. American National Standards Institute (ANSI) Publications:

a. B1 - Unified Inch Screw Threads (UN and UNR Thread Form)

b. B2.1 - Pipe Threads (Except Dryseal)

c. B2.4 - Hose Coupling Screw Threads

d. B16.5 - Pipe Flanges and Flanged Fittings

e. B16.10 - Face-to-Face and End-to-End Dimensions of Ferrous

Valves

f. B16.21- Nonmetallic Flat Gaskets for Pipe Flanges

g. B16.34 - Valves-Flanged and Buttwelding End

h. B18.2.1 - Square And Hex Bolts and Screws Inch Series Including

Hex Cap Screws and Lag Screws

i. B18.2.2 - Square and Hex Nuts

j. B31.9 - Building Services Piping

k. B40.1 - Gauges-Pressure Indicating Dial Type-Elastic Element

l. Z49.1 - Safety In Welding and Cutting

2. American Society for Testing and Materials (ASTM) Publications:

a. A194 - Carbon and Alloy Steel Nuts for Bolts for High-Pressure and High-Temperature Service

b. A276 - Stainless and Heat-Resisting Steel Bars and Shapes

c. A307 - Carbon Steel Externally Threaded Standard Fasteners

d. A386 - Zinc-Coating (Hot-Dip) on Assembled Steel Products

e. A525 - Sheet Steel, Zinc-Coated (Galvanized) by the Hot-Dip

Process

f. A774 - As-Welded Wrought Austenitic Stainless Steel Fittings for

General Corrosive Service at Low and Moderate Temperatures

g. D1654 - Painted or Coated Specimens Subjected to Corrosive

Environments

PIPING SYSTEMS 12.25

22 05 10-2 560.016.025

3. Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) Publications:

a. SP 58 - Pipe Hangers and Supports - Materials, Design and

Manufacture

4. SP 69 - Pipe Hangers and Supports - Selection and Application

1.03 SUBMITTALS

A. The Contractor shall submit an electronic copy of the Manufacturer's material Specifications for each item to be supplied under this Section.

B. The Contractor shall submit shop drawings to the Engineer and Owner on the installation plans for all piping systems prior to installation.

1.04 SAFETY PRECAUTIONS

A. Rotating Equipment Safety: Fully guard couplings, motor shafts, gears and other exposed rotating or rapidly moving parts in accordance with ASME B15.1. The guards shall be cast iron or expanded metal. Guard parts shall be rigid, secured, and readily removable without disassembling the guarded unit.

B. Welding and Cutting Safety: ANSI Z49.1.

PART 2 - PRODUCTS

2.01 PIPING SCHEDULE

2.02 PIPING, FITTINGS AND ACCESSORIES

A. PVC Fittings: PVC fittings shall be as specified in Section 31 05 31.14, "Polyvinyl Chloride (PVC) Fittings".

B. HDPE Piping: HDPE piping and fittings shall be as specified in Section 33 05 33.40, "High Density Polyethylene (HDPE) Pipe and Fittings".

C. Stainless Steel Piping

1. Piping and fittings shall be ASTM A778 or ASTM A312, Type 304L stainless steel, Schedule 40, welded or flanged as shown, with Class 150, ASTM A774, Type 304L stainless steel fittings.

D. Flanged Joints

1. Flanges

a. Provide ANSI B16.1, Class 150 flanges for all flange connections.

Backup rings shall be lightweight stainless steel.

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2. Bolting of Flanges

a. Material used for bolts, studs and nuts shall be stainless steel conforming to ASTM A276, Type 304, and material for nuts shall be stainless steel conforming to ASTM A276, Type 304, for all valves and fittings. Dimensions of bolts, studs, and nuts shall conform to ANSI B182.2.1 and ANSI B18.2.2 with threads conforming to ANSI B1.1 coarse type with Class 2A fit for bolts and studs, and Class 2B fit for nuts. Bolts or studs shall extend through the nuts and may have reduced shanks of a diameter not less than the diameter at root of threads. Bolts shall have American Standard regular square or heavy hexagon heads and shall have American Standard heavy, semi-finished hexagonal nuts.

3. Gaskets

a. All flange gaskets shall be Viton, suitable for the pressure and temperature ranges encountered, and compatible with the flange faces. Dimensions for nonmetallic gaskets shall conform to ANSI B16.21.

E. Valves

1. Manual Knife Gate Valves

a. Provide valves constructed of cast iron body, stainless steel knife wafer type construction with tapped and threaded Class 150 bolt holes and replaceable Viton sleeve. Valves shall be equipped with remote beveled gear manual actuators with riser extensions to allow for operation of the valve on top of the manhole. Valve shall be capable of 150 psig maximum working pressure. Knife gate valves shall be as manufactured by Red Valves (FlexGate), or equal.

F. Wall Penetrations

1. Wall penetrations for pipes entering structures shall be located as shown on the drawings and shall be of the proper dimensions for the pipe sizes involved. Wall penetrations shall be cored in-place with continuous waterstop and mechanical seal (“Link-Seal,” or equal), as shown on the Plans. The penetrations shall have a smooth surface. All penetrations shall be watertight.

PART 3 - EXECUTION

3.01 INSTALLATION

A. Install piping and piping components to ensure proper and efficient operation of the equipment and controls and in accordance with manufacturer's printed instructions. All pipe and fittings shall be carefully handled by means of suitable equipment, in such a manner as to prevent damage to materials and protective

22 05 10-4 560.016.025 coatings or linings. Under no circumstances shall materials be dropped or damaged during installation. Pipe or fittings which are damaged during construction shall be repaired or replaced at no expense to the Owner.

B. Cut to the measurements established at the site and work into place without springing or forcing. Install piping with line flexibility included to absorb the expansion and contraction due to temperature changes of the piping systems.

Piping line flexibility shall be achieved by the use of pipe bends or loops.

C. Flanged Joints

1. Faced true, square, tight and used as indicated and where necessary for normal maintenance. Mate with valves and the various equipment connections. Remove the raised faces from fittings or equipment having raised faces. Flanged joints shall be firmly bolted with through, stud or tap bolts.

D. Reducing Fittings

1. Use to connect changes of sizes in piping lines. Make branch connections with tees except that factory-made saddles having integral gasketing and clamps be used if the nominal diameter of the piping system header is greater than two nominal pipe diameters of the branch. All saddles shall be installed in accordance with the manufacturer’s specifications. No saddles shall be extrusion welded.

E. Valves

1. Install at all equipment items to allow maintenance or isolation, and to establish proper and sequential operation of the complete system.

3.02 LEACHATE PIPING

A. Fabrication and Assembly of Piping and Components

1. Assembly and connection of plastic piping (PVC, HDPE or as specified) shall be in accordance with the appropriate specification section and as specified herein.

2. Provide sufficient pitch to assure adequate drainage and venting. Provide drain valves at low points of piping system, and air vent valves at high points where air pockets would occur.

3. All piping shall follow the general arrangement shown, cut accurately to measurements established for the work by the Contractor, and worked into place without springing or forcing.

4. All piping and equipment within structures shall be entirely out of the way of electrical conduit, lighting fixtures, equipment and doors, and other openings. Provide adequate clearance from walls, ceilings, and floors to permit the connection of joints and to permit work between the pipe and wall. Provide for expansion and contraction of pipelines.

5. Make changes in size of pipelines with reducing fittings.

560.016.025 22 05 10-5

6. Do not bury, conceal, or insulate piping until inspected, tested, and approved.

7. Protect materials and equipment from the weather.

8. Run all pipe to be insulated as shown and as required with sufficient clearance to permit application of insulation.

9. Do not miter pipe to form elbows, or notch straight runs to form full-sized tees, or utilize any similar construction.

10. Except where shown otherwise, run vertical piping plumb and straight and parallel to walls.

11. Thoroughly clean each section of pipe, fittings, and valves to be free of all foreign matter before erection. Prior to erection, hold each piece of pipe in an inclined position and thoroughly tap to loosen sand, mill scale, and foreign matter. Before all final connections are made to apparatus, wash the interior of all piping thoroughly with water. Blow out piping with compressed air or flush with water to remove rust scale, oil, and debris.

Plug or cap open ends of mains during all shutdown periods. Do not leave lines open at any place where foreign matter might accidentally enter.

12. Cutting of pipe shall be done with pipe cutters, motor drive saws using abrasive disks, or with handsaws as required. Where machining is necessary for cut ends or for extending factory machining, it shall be done in accordance with the manufacturer's recommendations for the type of pipe and joint used. Fittings and pipe within structures shall be placed to line and grade and properly supported before joints are made. The Contractor shall furnish all the necessary pipe supports, including stirrups, rods, clamps, hangers, pipe columns and piers, necessary to sustain the pipe and fittings in a firm and substantial manner to the lines and grades given.

3.03 FIELD TESTING AND QUALITY CONTROL

A. After completion of the piping installation and prior to initial operation, conduct tests on the piping system. Furnish materials and equipment required for tests.

Correct defects disclosed by the test. The test shall be performed once a minimum of 2 feet of backfill has been placed and compacted around the pipe and in the presence of the Engineer. No leakage is permitted.. If the pressure loss exceeds the maximum allowable loss under the manufacturer’s recommendation, the pipe section shall be repaired and retested until acceptable results are achieved. No expansion allowances shall be permitted for pneumatic tests.

B. Primary Containment Leachate Piping

1. Hydrostatically test piping system at one and one-half times system pressure but at least 50 psig with water not exceeding 100 degrees F.

Before tests, remove or isolate gauges and other apparatus in the new system which may be damaged by the high pressure. Install a calibrated, test pressure gauge in the system to observe loss in pressure. Fill pipe in manner which allows bleeding of air from local high point(s) in system and bring system up to test pressure. Maintain the required test pressure

22 05 10-6 560.016.025 for a sufficient amount of time (min. 1 hr) to enable an inspection of joints and connections. Correct defects disclosed by the test.

3.04 POST-CONSTRUCTION

A. When installations of the various components of the piping systems are completed, clean by flushing with water before final closing. Clean all piping and components of scale and thoroughly flush out all foreign matter. Clean all strainers and valves thoroughly. Wipe equipment clean, removing all traces of oil, dust, dirt, or paint spots. Maintain the system in this clean condition until final approval. Clean and paint piping and equipment as specified herein.

B. All pipelines shall be visually inspected by means of pipeline television camera and recorded permanently on DVD. Provide one (1) DVD hard copy and one (1) electronic copy of record video. Any abnormalities or deficiencies determined by the camera inspection shall be repaired and re-inspected by television camera after the repair. All necessary repairs and re-inspections shall be provided at no additional cost to the Owner.

3.05 STARTUP AND OPERATIONAL TESTS

A. Start up and initially operate the system. During this time, observe the operation of the system and correct any defects or abnormalities which may occur in the overall system.

12.25 ELECTRICAL GENERAL REQUIREMENTS

560.016.025 26 05 01-1

SECTION 26 05 01

ELECTRICAL GENERAL REQUIREMENTS

PART 1 - GENERAL

1.01 DESCRIPTION

A. Under this Section, the Contractor shall furnish all labor, materials and equipment for Electrical General Requirements, as shown on the Plans, as specified and/or directed.

1.02 REFERENCES

A. The publications listed below and their latest revisions form a part of this Specification to the extent referenced. The publications are referred to in the text by the basic designation only.

1. Federal Specification (Fed. Spec.):

a. L-P-387A - Plastic Sheet, Laminated, Thermosetting (for Design Plates)

2. American National Standards Institute (ANSI) Publications:

a. C37.20 - Switchgear Assemblies, Including Metal-Enclosed Bus

b. Z35.1 - Accident Prevention Signs

3. Institute of Electrical and Electronics Engineers (IEEE) Publication:

a. 100 - Standard Dictionary of Electrical and Electronics Terms

4. National Electrical Manufacturers Association (NEMA) Publication:

a. ICS 6 - Enclosures for Industrial Controls and Systems

5. National Fire Protection Association (NFPA) Publications:

a. 70B - Electrical Equipment Maintenance

b. 70 - National Electrical Code

1.03 APPLICATION

A. This Section applies to all sections of Division 26, "Electrical", of this project except as specified otherwise in each individual section.

1.04 DEFINITION OF ELECTRICAL TERMS

A. Unless otherwise specified or indicated, electrical terms used in these Specifications, and on the drawings, shall be as defined in IEEE Standard No. 100.

1.05 ELECTRICAL UTILITY COORDINATION & ELECTRICAL SYSTEM

VERIFICATION

A. Contractor shall coordinate all pre and post construction activities with the Electrical Utility (EU) provider per the EUs written bulletin/specification requirements.

ELECTRICAL GENERAL REQUIREMENTS 12.25

26 05 01-2 560.016.025

B. Prior to shop drawing submittals, prior to commencing any demolition and/or prior to commencing any new construction activities, electrical characteristics for all existing and/or proposed electrical systems (including service, premises wiring systems and/or separately derived systems) shall be verified by this Contractor.

C. The Contractor shall coordinate and confirm, in writing, the following information from the Electrical Utility prior to commencement of any work under this Contract:

1. Voltage

2. Number of phases

3. Type of system grounding

4. Metering arrangement and Style

5. Electrical Service Capacity

D. Should the Contractor’s verification of any existing or proposed electrical system indicate a discrepancy with the Contract Documents, report them immediately to the Owner and/or Owners designated representative.

E. Submitting shop drawings and/or commencing any work under this Contract prior to all electrical systems verification/confirmation as required above signifies that Contractor accepts all existing and proposed electrical system characteristics and conditions.

1.06 SUBMITTALS

A. Obtain approval before procurement, fabrication, or delivery of items to the job site.

Partial submittals will not be acceptable and will be returned without review.

Submittals shall include the manufacturer's name, trade name, place of manufacture, catalog model or number, nameplate data, size, layout dimensions, capacity, project specification and paragraph reference, applicable Federal, Military, industry, and technical society publication references, and other information necessary to establish contract compliance of each item to be furnished. Furnish a minimum of six (6) copies of shop drawings for each major device specified or electronic shop drawings as specified herein. All hard copy shop drawings shall be a minimum of 8.5 inches by 11 inches in size.

B. Shop Drawings: In addition to the requirements specified elsewhere, shop drawings shall meet the following requirements. Drawings shall include complete ratings information, wiring diagrams, and installation details of equipment indicating proposed location, layout and arrangement, control panels, accessories, piping, ductwork, and other items that must be shown to assure a coordinated installation.

Wiring diagrams shall identify circuit terminals and indicate the internal wiring for each item of equipment and the interconnection between each item of equipment.

Drawings shall indicate adequate clearance for operation, maintenance, and replacement of operating equipment devices. If equipment is disapproved, revise drawings to show acceptable equipment and resubmit.

560.016.025 26 05 01-3

C. Manufacturer's Data: Submittals for each manufactured item shall be current manufacturer's descriptive literature of cataloged products, equipment drawings, diagrams, performance and characteristic curves, and catalog cuts.

D. Publication Compliance: Where equipment or materials are specified to conform to industry and technical society publications of organizations such as American National Standards Institute (ANSI), American Society for Testing and Materials (ASTM), and Underwriters' Laboratories Inc. (UL), submit proof of such compliance. The label or listing by the specified organization will be acceptable evidence of compliance. In each of the publications referred to herein, consider the advisory provisions to be mandatory, as though the word "shall" had been substituted for "should" wherever it appears. In lieu of the label or listing, submit a certificate from an approved independent testing organization, adequately equipped and competent to perform such services, stating that the item has been tested in accordance with the specified organization's test methods and that the item conforms to the specified organization's publication.

E. Submittals Required: Supply shop drawing submittal information as otherwise noted in each individual section.

F. Electronic Shop Drawings: If allowed by other sections of these Contract Documents, electronic submittals shall be submitted to Engineer in accordance with procedures outlined in these Contract Documents, as established at a preconstruction meeting and/or per Engineer’s written instructions.

1. Electronic shop drawings shall be submitted in an OCR (searchable) PDF file format or per Engineer’s instructions. Each shop drawing shall be a single electronic file with correct orientation of all sheets contained within.

2. Electronic shop drawings shall be scaled to print at 8.5 inches by 11 inches (for general information, manufacturer’s product data, etc.) and as required for drawings (layout drawings, coordination drawings, schematics, site drawings, electronic copy), except as specified otherwise.

3. Engineer shall make final determination on clarity of electronic shop drawings and will reject electronic shop drawing if resolution is not acceptable.

1.07 OPERATION AND MAINTENANCE MANUAL

A. Submit as required for systems and equipment indicated in the technical sections.

Furnish three (3) copies, bound in hardback binders or an approved equivalent.

Furnish one complete manual prior to performance of systems or equipment tests, and furnish the remaining manuals prior to contract completion. Inscribe the following identification on the cover: the words "OPERATION AND MAINTENANCE MANUAL", the name and location of the system, equipment, building, name of Contractor, and contract number. Include in the manual the names, addresses, and telephone numbers of each subcontractor installing the system or equipment and the local representatives for the system or equipment. Include a table of contents and assemble the manual to conform to the table of contents, with the tab sheets placed before instructions covering the subject. The instructions shall

26 05 01-4 560.016.025 be legible and easily read, with large sheets of drawings folded in. The manual shall include:

1. Internal and interconnecting wiring and control diagrams with data to explain detailed operation and control of the system or equipment.

2. A control sequence describing startup, operation, and shutdown.

3. Description of the function of each principal item of equipment.

4. Installation and maintenance instructions.

5. Safety precautions.

6. Diagrams and illustrations.

7. Testing methods.

8. Performance data.

Lubrication schedule including type, grade, temperature range, and frequency.

9. Parts list. The list shall indicate sources of supply, recommended spare parts, and name of servicing organization.

10. Appendix: List qualified permanent servicing organizations for support of the equipment, including addresses and certified qualifications.

B. Electronic Version: Provide a complete O&M as a single PDF file, or multiple files if there are significant amounts of data. PDF file(s) shall be an optical character recognition (OCR) or searchable file.

1.08 SPARE PARTS

A. Provide spare parts for all equipment installed under this Contract, as indicated in individual specification sections.

1.09 POSTED OPERATING INSTRUCTIONS

A. Furnish approved operating instructions for systems and equipment indicated in the technical sections for use by operation and maintenance personnel. The operating instructions shall include wiring diagrams, control diagrams, and control sequence for each principal system and equipment. Print or engrave operating instructions and frame under glass or in approved laminated plastic. Post instructions as directed.

Attach or post operating instructions adjacent to each principal system and equipment including startup, proper adjustment, operating, lubrication, shutdown, safety precautions, procedure in the event of equipment failure, and other items of instruction as recommended by the manufacturer of each system or equipment.

Provide weather-resistant materials or weatherproof enclosures for operating instructions exposed to the weather. Operating instructions shall not fade when exposed to sunlight and shall be secured to prevent easy removal or peeling.

1.10 INSTRUCTION TO OWNER'S PERSONNEL

A. Where indicated in the technical sections, furnish the services of competent…