03 15 13 00 10 EXPANSION JOINTS CONTRACTION JOINTS AND WAT.doc

SECTION 03 15 13.00 10

EXPANSION JOINTS, CONTRACTION JOINTS, AND WATERSTOPS

PART 1 GENERAL

1.1 REFERENCES

1.1.1 The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only. Unless otherwise noted, the latest published version and/or revision shall be used.

1.1.1.1 AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO)

a. AASHTO T 111 Inorganic Matter or Ash in Bituminous Materials

1.1.1.2 AMERICAN HARDBOARD ASSOCIATION (AHA)

a. AHA A135.4 Basic Hardboard

1.1.1.3 ASTM INTERNATIONAL (ASTM)

a. ASTM A 1011 Standard Specification for Steel, Sheet, and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability

b. ASTM A 109 Standard Specification for Steel, Strip, Carbon (0.25 Maximum Percent), Cold-Rolled

c. ASTM A 167 Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip

d. ASTM A 480 Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

e. ASTM B 152 Standard Specification for Copper Sheet, Strip, Plate, and Rolled Bar

f. ASTM B 370 Standard Specification for Copper Sheet and Strip for Building Construction

g. ASTM C 919 Standard Practice for Use of Sealants in Acoustical Applications

h. ASTM C 920 Standard Specification for Elastomeric Joint Sealants

i. ASTM D 1751 Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types)

j. ASTM D 1752 Standard Specification for Preformed Sponge Rubber and Cork Expansion Joint Fillers for Concrete Paving and Structural Construction

k. ASTM D 2628 Standard Specification for Preformed Polychloroprene Elastomeric Joint Seals for Concrete Pavements

l. ASTM D 2835 Standard Specification for Lubricant for Installation of Preformed Compression Seals in Concrete Pavements

m. ASTM D 4 Standard Test Method for Bitumen Content

n. ASTM D 412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension

o. ASTM D 471 Standard Test Method for Rubber Property - Effect of Liquids

p. ASTM D 5249 Standard Specification for Backer Material for Use with Cold-and Hot-Applied Joint Sealants in Portland-Cement Concrete and Asphalt Joints

q. ASTM D 6 Standard Test Method for Loss on Heating of Oil and Asphaltic Compounds

1.1.1.4 U.S. ARMY CORPS OF ENGINEERS (USACE)

a. COE CRD-C 513 Specifications for Rubber Waterstops

b. COE CRD-C 572 Specifications for Polyvinylchloride Waterstops

1.2 SUBMITTALS

1.2.1 Government approval may be required on any of the following items. Items requiring submittals will be listed on the AF Form 66. Provide copies of all submittals per the requirements in Section 01 33 00, Submittal Procedures, or as listed on the AF Form 66.

1.2.1.1 SD-03 Product Data

a. Preformed Expansion Joint Filler

b. Sealant

1.2.1.2 SD-04 Samples

a. Lubricant for Preformed Compression Seals

(1) Specimens identified to indicate the manufacturer, type of material, size and quantity of material, and shipment or lot represented. Each sample shall be a piece not less than 9 ft of 1 inch nominal width or wider seal or a piece not less than 12 ft of compression seal less than 1 inch nominal width. One quart of lubricant shall be provided.

b. Field-Molded Sealants and Primer

(1) One gallon of field-molded sealant and one quart of primer (when primer is recommended by the sealant manufacturer) identified to indicate manufacturer, type of material, quantity, and shipment or lot represented.

1.2.1.3 SD-07 Certificates

a. Preformed Expansion Joint Filler

b. Sealant

1.3 DELIVERY AND STORAGE

1.3.1 Material delivered and placed in storage shall be stored off the ground and protected from moisture, dirt, and other contaminants. Sealants shall be delivered in the manufacturer's original unopened containers. Sealants whose shelf life has expired shall be removed from the site.

PART 2 PRODUCTS

2.1 CONTRACTION JOINT STRIPS

2.1.1 Contraction joint strips shall be 1/8 inch thick tempered hardboard conforming to AHA A135.4, Class 1. In lieu of hardboard strips, rigid polyvinylchloride (PVC) or high impact polystyrene (HIPS) insert strips specifically designed to induce controlled cracking in slabs on grade may be used. Such insert strips shall have removable top section.

2.2 PREFORMED EXPANSION JOINT FILLER

2.2.1 Expansion joint filler shall be preformed material conforming to ASTM D 1751or ASTM D 1752. Unless otherwise indicated, filler material shall be 3/8 inch thick and of a width applicable for the joint formed. Backer material, when required, shall conform to ASTM D 5249.

2.3 SEALANT

2.3.1 Joint sealant shall conform to the following:

2.3.1.1 Preformed Polychloroprene Elastomeric Type

a. ASTM D 2628.

2.3.1.2 Lubricant for Preformed Compression Seals

a. ASTM D 2835.

2.3.1.3 Field-Molded Type

a. ASTM C 920, Type M, Grade P or NS, Class 25, Use T for joints subject to vehicular traffic and Use NT other applications. Type M, Grade NS, Class 25, Use NT for vertical joints. Bond breaker material shall be polyethylene tape, coated paper, metal foil or similar type materials. The back-up material shall be compressible, non-shrink, nonreactive with sealant, and non-absorptive material type such as extruded butyl or polychloroprene rubber.

2.3.1.4 Hot-Applied Jet-Fuel Resistant Type

a. ASTM C 920, Type M, Grade P or NS, Class 25, Use T for joints subject to vehicular traffic and Use NT for other applications. Type M, Grade NS, Class 25, use NT for vertical joints.

PART 3 EXECUTION

3.1 JOINTS

3.1.1 Joints shall be installed at locations indicated and as authorized.

3.1.1.1 Contraction Joints

a. Contraction joints may be constructed by inserting tempered hardboard strips or rigid PVC or HIPS insert strips into the plastic concrete using a steel parting bar, when necessary, or by cutting the concrete with a saw after concrete has set. Joints shall be approximately 1/8 inch wide and shall extend into the slab one-fourth the slab thickness, minimum, but not less than 1 inch.

3.1.1.2 Joint Strips

a. Strips shall be of the required dimensions and as long as practicable. After the first floating, the concrete shall be grooved with a tool at the joint locations. The strips shall be inserted in the groove and depressed until the top edge of the vertical surface is flush with the surface of the slab. The slab shall be floated and finished as specified. Working of the concrete adjacent to the joint shall be the minimum necessary to fill voids and consolidate the concrete. Where indicated, the top portion of the strip shall be sawed out after the curing period to form a recess for sealer. The removable section of PVC or HIPS strips shall be discarded and the insert left in place. True alignment of the strips shall be maintained during insertion.

3.1.1.3 Sawed Joints

a. Joint sawing shall be early enough to prevent uncontrolled cracking in the slab, but late enough that this can be accomplished without appreciable spalling. Concrete sawing machines shall be adequate in number and power, and with sufficient replacement blades to complete the sawing at the required rate. Joints shall be cut to true alignment and shall be cut in sequence of concrete placement. Sludge and cutting debris shall be removed.

3.1.1.4 Expansion Joints

a. Preformed expansion joint filler shall be used in expansion and isolation joints in slabs around columns and between slabs on grade and vertical surfaces where indicated. The filler shall extend the full slab depth, unless otherwise indicated. The edges of the joint shall be neatly finished with an edging tool of 1/8 inch radius, except where a resilient floor surface will be applied. Where the joint is to receive a sealant, the filler strips shall be installed at the proper level below the finished floor with a slightly tapered, dressed and oiled wood strip temporarily secured to the top to form a recess to the size shown on the drawings. The wood strip shall be removed after the concrete has set. Contractor may opt to use a removable expansion filler cap designed and fabricated for this purpose in lieu of the wood strip. The groove shall be thoroughly cleaned of laitance, curing compound, foreign materials, protrusions of hardened concrete, and any dust which shall be blown out of the groove with oil-free compressed air.

3.1.1.5 Joint Sealant

a. Sawed contraction joints and expansion joints in slabs shall be filled with joint sealant, unless otherwise shown. Joint surfaces shall be clean, dry, and free of oil or other foreign material which would adversely affect the bond between sealant and concrete. Joint sealant shall be applied as recommended by the manufacturer of the sealant.

3.1.1.6 Joints With Preformed Compression Seals

a. Compression seals shall be installed with equipment capable of installing joint seals to the prescribed depth without cutting, nicking, twisting, or otherwise distorting or damaging the seal or concrete and with no more than 5 percent stretching of the seal. The sides of the joint and, if necessary, the sides of the compression seal shall be covered with a coating of lubricant. Butt joints shall be coated with liberal applications of lubricant.

3.1.1.7 Joints With Field-Molded Sealant

a. Joints shall not be sealed when the sealant material, ambient air, or concrete temperature is less than 40 degrees F. When the sealants are meant to reduce the sound transmission characteristics of interior walls, ceilings, and floors the guidance provided in ASTM C 919 shall be followed. Joints requiring a bond breaker shall be coated with curing compound or with bituminous paint. Bond breaker and back-up material shall be installed where required. Joints shall be primed and filled flush with joint sealant in accordance with the manufacturer's recommendations.

3.2 CONSTRUCTION JOINTS

3.2.1 Construction joints are specified in Section 03 30 00 CAST-IN-PLACE CONCRETE except that construction joints coinciding with expansion and contraction joints shall be treated as expansion or contraction joints as applicable.

END OF SECTION 03 15 13.00 10

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