AASHTO PP 99-19 PDF Download

AASHTO PP 99-19 is a provisional standard practice that outlines the procedure for preparing small cylindrical performance test specimens using the Superpave Gyratory Compactor (SGC) or field cores. The standard is focused on the preparation of 38-mm (1.50-in.) diameter by 110-mm (4.33-in.) height specimens for use in axial compression and tension performance tests. The standard applies to dense-graded asphalt mixtures with nominal maximum aggregate sizes up to 19.0 mm (0.98 in.).

This standard provides detailed guidelines for the preparation of test specimens using either the SGC or field cores. It specifies the dimensions of the specimens and the equipment to be used. The standard also provides instructions on how to prepare the asphalt mixture, including the selection of materials and the mixing process.