ASTM D1751:181 pdf free download – Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types).
3. Ordering Information
3.1 Products conforming to this specification are manufactured in sheet form to a range of thicknesses, namely ¼. /x, ½. 3/4, and I in. Sheet sizes may be 3 or 4 ft in width and standard length of 10 ft. Purchaser must specify sheet sizes when ordering.
3.2 Joint tiller in strip form is cut from the sheets as manufactured. When ordering joint filler strips, the purchaser must specify thickness, width, and length: strip widths are available from 2 in. in increments of ½ in.
4. Material
4. 1 This product shall consist of preformed sheets or strips made from cane or other suitable fibers of a cellulosic nature securely bound together and then uniformly saturated with asphalt: or, sttips formed from clean granulated cork securely bound together by a suitable asphalt binder and encased between two layers of saturated felt or two layers of glass-fiber
4.2 Preformed strips of expansion joint filler shall be of such character as not to be deformed or broken by twisting. bending, or other ordrnaiy handling when exposed to atmospheric conditions.
5. Requirements
5.1 Test Specimen—The sample to he tested shall be cut from the sheet, as manufactured, and shall be representative of the sheet stock.
5.2 Compression—The load required to compress the test specimen to 50 % of its thickness before test shall be not less than 100 and not more than 750 psi (689 to 5171 kPa). If the nominal thickness of the specimen is less than ½ in. (13 mm), a maximum load of 1250 psi (8618 kPa) will be permitted. The sample after compression, shall show a loss of not more than 3 % of its original weight.