The properties of asphalt cement with different proportions of natural rubber for quality improvement

Abstract

This research present engineering properties of asphaltic concrete improved with natural rubber, natural rubber latex to improve the properties of asphalt concrete. The use of natural rubber latex helps to promote the use of natural rubber raw materials in the country, which is a way to increase the use of para rubber according to the government's policy. In general, natural rubber latex properties can help improve asphalt concrete pavement flexibility and strength. It also increases the service life and uses less asphalt
cement in the mixture. The objective of this research was to study the engineering behavior of asphalt cement AC 60/70 to improved binder material with natural rubber latex. The different proportions of natural rubber were used with the addition of 3, 5, 7, 9 and 11 percent natural rubber by weight. The penetration test, softening point test, flash point and ignition point test and Ductility test were determined. The results showed that when the amount of natural rubber latex in the mixture increased will make the penetration lower. The value of the softening point increases, less warp point and ignition point and ductility decreases.