【国外标准】 Standard Specification for Preformed Expansion Joint Filler for Concrete (Bituminous Type)

This specification covers bituminous preformed expansion joint filler for use in concrete construction. This product shall consist of a bituminous (asphalt or tar) mastic composition, formed and encased between two layers of bituminous impregnated felt or two layers of glass-fiber felt. The mastic shall comprise mineral fillers and reinforcing fibers and may contain thin strips of reinforcing sheet material. Different test methods shall be performed in order to determine the following properties: distortion at 52°C, brittleness, water absorption, and compression.1.1 This specification covers bituminous preformed expansion joint filler for use in concrete construction.NOTE 1: Attention is called to ASTM Specifications D1751 and D1752.1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.