Temperature sensitivity effect in asphalt modification with natural rubber sir20

Abstract

The use of asphalt material is needed so that surface layer could be water-resistant. Asphalt material also improves tensile stress which means enhancing support capacity for traffic load. Asphalt modification can be done by adding certain materials, such as natural rubber, to improve asphalt performance. Experimental methods were taken in this study. Asphalt tests which carried out are specific gravity, softening point and penetration with natural rubber variation 2%, 4%, 6%, 7%, 8%, 9%, 11% and 13%. Results were shown that the higher addition of natural rubber SIR20, asphalt more hardened and more insensitive to changes in temperature. This hardness characteristic of asphalt could be the initial parameter for making asphalt mixtures that more resistant to rutting and permanent deformation.