The Study Properties of Polishing Stone Value from The Source of Aggregate Materials Used in Asphalt Concrete Pavement

Abstract

At present, more than 80% of vehicles in Thailand travel on asphalt concrete pavement. The design of asphalt concrete pavement construction is an important process. Because many factors must be considered such as traffic volume, load weight, service life, etc. Therefore, the selection of construction materials is an important step that must be considered first in passing the qualification tests to various standards. Because the properties of the material directly affect the service life and deterioration of the pavement. Polishing Stone Value (PSV) is a test to assess the abrasion wear of pavement aggregates according to ASTM E303 and BS812-114. The test begins with the selection of aggregates from various sources. to put in a pattern and put it into the Accelerated Polishing Machine, then start testing. The aggregate is abrasive with rubber wheels in combination with coarse abrasives and fine abrasives. When the test time is over, take it to the test again with the British Pendulum Tester, the reading will be PSV. For this research, the research team selected 10 aggregates in Thailand. The selected aggregates were divided into 3 types: limestone, basalt and granite. The size of the aggregate used in the test was 3/8”. The results showed that basalt had the highest abrasion resistance. followed by granite and limestone, respectively.