Pomza, İgnimbirit ve Perlitin Taş Mastik Asfaltta Kullanılabilirliği

Abstract

The usability of pumice, ignimbrite (Ahlat stone), and perlite powders as aggregate material in stone mastic asphalt production was investigated in this study. These aggregates were used as filler in asphalt samples that were subjected to standard tests applied to pavement before it can be used in highways. Los Angeles abrasion rate was found to be 73% for pumice, 78% for Ahlat stone and 67% for perlite. In this study, 4 different types of stone mastic asphalt (SMA) were made. In Basalt-SMA (BAS-SMA); basalt was used as coarse aggregate, fine aggregate and filler in the mixture. In Pumice-SMA (PUM-SMA); basalt was used as coarse aggregate and fine aggregate, and pumice was used as filler. In Ahlat Stone-SMA (AS-SMA); basalt was used as coarse aggregate and fine aggregate, and Ahlat stone was used as filler. In Perlite-SMA (PER-SMA); basalt was used as coarse aggregate and fine aggregate, and perlite was used as filler. As a result of the study, BAS-SMA stability and flow values were found to be 979 kg and 2.88 mm. PUM-SMA stability and flow values were found to be 940 kg and 3.24 mm. AS-SMA stability and flow values were found to be 965 kg and 3.20 mm. PER-SMA stability and flow values were found to be 937 kg and 3.19 mm. These tests provided reference values for the specifications of SMA. Test results show that pumice, Ahlat stone and perlite cannot be used as fine or coarse aggregates in SMA mixtures. The test results show that pumice, Ahlat stone and perlite can only be used as filler in SMA mixtures.