scope:

1.1 This specification covers preformed pressure-relief joint fillers of the following two types made from cellular plastic materials having suitable compressibility and nonextruding characteristics.

1.1.1 Type I, closed cell polyethylene, and

1.1.2 Type II, open cell polyurethane.

1.2 These joint fillers are intended for use in concrete pavements in full-depth joints measuring approximately 4.0 in. (102 mm) in width to relieve stress or avoid potential distress in adjacent structures or pavements.

1.3 The values stated in inch-pound units are to be regarded as the standard.