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 D 1751 and D 1752.

1.2 The values stated in SI units shall be regarded as the standard.