8−86 Specific Gravity ASTM D792 Max 1.35 Durometer Hardness ASTM D2240 75 +/- 5 Tensile Strength ASTM D412 Min 1.8 ksi Elongation ASTM D412 Min 350% Cold Brittleness ASTM D746 -35° F Stiffness in Flexure ASTM D747 Min 0.350 ksi
812.03 CONSTRUCTION METHODS. Waterstops shall be installed at locations indicated on the
Plans. Where movement at the joint is provided for, the waterstop shall be capable of accommodating such movement without injury. Wa terstops shall be spliced, welded or soldered to form durable continuous watertight joints. Precautions shall be taken so that the waterstops shall be neither displaced nor damaged by construction operations or other means. Damaged components shall be repaired to the satisfaction of the Engineer at no additional cost to the State. All surfaces of the waterstops shall be kept free from oil, grease, dried mortar, or any other foreign matter while the waterstop is being embedded in concrete. Means shall be used to ensure that all portions of the waterstop designed for embedment shall be tightly enclosed by dense concrete per the manufacturer’s recommendations. A Certificate of Analysis from an approved independent test ing laboratory shall be provided to the Engineer. The certificate shall state that the material furnished conforms without exception to all the requirements specified herein; and shall also include all qualitative and quantitative test results.
a.Waterstops. A manufacturer requesting approval of a waterstop shall furnish to the Engineer a 3-foot length of each type of PVC waterstop he intends to supply for approval.
b.Installation of Waterstops . The Contractor shall demonstrate proven ability and competence in the installation of these products, in conformance with the manufacturer's printed instructions. If any part of this work is found defective at any time before the final acceptance, the Contractor, at his own expense, shall correct each defect to the satisfaction of the Engineer.
1.Preparatory Work . All waterstops shall be protected from oil, dirt, concrete spatter, damage, and shall be clean to receive concrete forms. Particular care shall be taken during installation of waterstops to eliminate all deficiencies that may cause leakage. Waterstops shall be positioned so as not to create interference with reinforcing bars and slip during installation.
2.Methods . Different methods may be used to fasten the waterstop in position. All waterstops shall be held rigidly in place by extending through slots in keyways; held by split bulkheads; tied to reinforcing bars; or other adequate methods as necessary to ensure proper support and embedment during the concreting proce ss. The method used shall not cause damage to the waterstops or in any way compromise the integrity of the watertight seal.
3.Splicing . PVC waterstops may be butt-spliced on the job in accordance with the manufacturer’s recommendations. The Contractor shall demonstrate to the Engineer that all persons who are responsible for performing splices are capable of creating the proper joint. Upon request the manufacturer shall demonstrate the splic ing method for producing a strong, water-tight 8−87butt weld. Elbows, tees and crosses may also be produced by this method.
812.04 METHOD OF MEASUREMENT. Unless covered by a Special Provision, together with a
corresponding Proposal Item, waterstops will not be measured separately for payment. 812.05 BASIS OF PAYMENT. Unless covered by a specific Proposal Item, waterstops will not be paid for separately and are deemed incidental to the respective pay item for the concrete listed in the proposal. SECTION 813 WATERPROOFING AND DAMPPROOFING
813.01 DESCRIPTION. This work consists of providing waterproofing and dampproofing systems
on concrete bridge decks and other surfaces at the locations indicated on the Plans and where directed by the Engineer, all in accordance with these Specifications.
813.01.1 Systems.
a.Waterproofing shall consist of the application of heat-applied pre-fabricated membrane or a cold spray-applied liquid membrane, all as set forth below.
b.Dampproofing shall be formulated to apply to surfaces to minimize the intrusion of moisture in areas that will not bear traffic.
813.01.2 Dampproofing. This type of dampproofing consists of the application of a RIDOT
approved dampproofing material to concrete surfaces in strict compliance with the manufacturer's recommendations.
813.01.3 Heat-applied Pre-Fabricated Membrane. This type of waterproofing consists of applying
a heat-applied bituminous polymer -modified reinforced membrane of RIDOT approved manufacture to concrete surfaces in strict compliance with the manufacturer's recommendations.
813.01.4 Cold Spray-Applied Liquid Membrane. This type of waterproofing system consists of
applying a spray applied plural component resin based elastomeric membrane of RIDOT approved manufacturer to concrete surfaces in strict compliance with the manufacturer's recommendations.
813.02 MATERIALS. 813.02.1 General. Materials for waterproofing and dampproofing systems shall be delivered in
original, tightly sealed containers or unopened pack ages, clearly labeled with manufacturer's name, brand name and number, and batch number of the materi al where appropriate. Prior to delivery, the Contractor shall submit to the Engineer a notarized Certificate of Compliance provided by the manufacturer attesting that the material conforms to the product requirements as approved by the Department. The primer shall be as reco mmended by the system manufacturer.
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 420–421 of 826.