ASTM D4013-09 PDF Download

ASTM D4013-09 is a standard practice that provides guidelines for the preparation of test specimens of bituminous mixtures using a gyratory shear compactor. The standard specifically focuses on the preparation of 4-inch diameter test specimens that contain -7/8-inch (-22.4mm) aggregate.

The purpose of this practice is to standardize the preparation of test specimens in order to ensure consistency and accuracy in evaluating the performance of bituminous mixtures. By following this practice, researchers and engineers can obtain representative specimens that can be subjected to various tests to determine the physical and mechanical properties of the bituminous mixtures.

The use of a gyratory shear compactor in the preparation process allows for the compaction of the bituminous mixture by simulating the shearing and compaction forces experienced by the material during actual construction. This helps to ensure that the specimens accurately represent the behavior of the mixture in real-world conditions.