The Effect of Filler Type on the Hot Mix Asphalt Behavior

Abstract

The test have been done on many samples of Hot Mix Asphalt using many typesfillers like Portland Cement, Limestone, Hydrated Lime as a filler, 1% HydratedLime added to conventional mixture, Portland Cement introduced in cold state,and passing sieve no.200 dust (conventional mixture).In this research, Marshall test procedure is used to investigate the potentialprospects to enhance Hot Mix Asphalt properties. The objectives also includedetermining which one of the additives is better than the others to be used and themethod of introducing this filler type to the mixture.According to the results, we found out that the better filler affects themechanical properties of Hot Mix Asphalt is Portland cement when it introducedwith the aggregate at the mix temperature.