Optimum amount of concrete objects of concrete asphalt layer using limestone aggregate

Abstract

Concrete asphalt layer specimens are a mixture of coarse aggregate, fine aggregate, filler, and asphalt, which are crushed based on the number of collision plans. This study aims to determine the optimum number of collisions of concrete asphalt layer specimens using 100% coarse limestone aggregate against the Marshall Test. Marshall Tests produce Stability, Flow, and MQ values that are used to determine the age of the concrete asphalt layer plan. The stages of testing in this research were mixing the rough aggregate of limestone escaped sieve no. 3/4 - 8 mm or granular diameter between 0.5 cm - 2 cm, fine aggregate, filler, and asphalt. After mixing evenly and asphalt has covered all the aggregates, the mixture was inserted asphalt mold made of brass with a diameter of 100 mm height 65 mm. The next process is a compaction of the test specimen with five variations of collisions (50, 75, 100, 125, 150). After the test object is compacted, then a Marshall test is performed to find out the value of Stability, Flow, and MQ. The results of this study indicate that the optimum number of collisions is 100 times. This can be seen from the value of Stability: 1412 kg, Flow: 4.02 mm, and MQ: 351.2 kg/mm.