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TPER: The Per Acronym Definition TPER Thermoplastic Elastomeric Rubber TPER Total Primary Energy Requirement
ThermoPlastic Elastomeric Rubber (TPER)A waterstop is an element of a concrete structure, intended to provide watertightness when embedded in and running through concrete joints. Waterstops are frequently manufactured from extruded plastics such as PVC or thermoplastic elastomeric rubber (TPER); formed metal such as stainless steel, copper, or carbon steel; or extruded thermosets such as natural rubber, Styrene-butadiene rubber, or neoprene rubber. Polymer waterstops such as PVC, TPER, or rubber are frequently supplied to the construction site in coils (usually 50 lineal feet long), and are generally anywhere from 4 inches to 12 inches wide in a variety of profiles that are designed to simultaneously provide an interlock with the concrete they are installed in and provide for a limited amount of movement within the joint. PVC and TPER Waterstops are made continuous for the length of the concrete joint by heat welding, using simple thermoplastic welding equipment . Thermoset rubbers and metallic waterstops are more difficult to fabricate to continuous lengths and are specified far less frequently by architects and engineers. TPER waterstops are generally installed in joints of secondary containment structures to prevent the passage of hazardous fluids other than water such as fuel oils, acids, or process chemicals.
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