MECHANICAL PROPERTIES OF MODIFIED ASPHALT CONCRETE MIXTURES USING CA(OH)2 NANOPARTICLES

Increasing the traffic volume and the tire pressure raise the need to use new bitumen blend to pave the roads in heavy traffic area. Conventional bitumen has a limited capacity under wide range of loads and temperatures, which occur over the life of the pavement. Therefore, conventional bitumen needs to be modified to face the heavy load s and weather change. Nanomaterial, which have high surface to volume ratio, is recently used as bitumen modifier. Here, conventional bitumen were used with AC (60/70) penetration grade, modified by Ca(OH) 2 nanoparticles at five different modification percentage namely 1%, 2%, 3% 4%, and 5 %. Penetration, viscosity, softening point, indirect tensile strength and compressive strength tests were performed.