CORRELATION ANALYSIS OF DYNAMIC MODULUS AND RESILIENT MODULUS OF ASPHALT MIXTURE USING THE PG76 MODIFIED ASPHALT
Keywords:Dynamic modulus, Resilient modulus, Modified asphalt, Pen 60/70 asphalt
Road infrastructure is still a mainstay for mobility. The primary issue that happened frequently is early damage due to overload and high pavement surface temperatures. Existing materials, such as penetration grade asphalt and modified asphalt, could not overcome these problems. However, the development of materials using the modified asphalt equivalent to PG76 (EPG76) is expected to provide better performance obtained through mechanistic testing,i.e., Marshall, Dynamic Modulus, and Resilient Modulus. The rheology test for EPG76 modified asphalt was carried out using DSR and showed that the value of EPG76 modified asphalt has increased to above Pen 60/70 asphalt. The polymer content of EPG76 modified asphalt can prevent asphalt properties became more rigid and more resistant to high temperatures. This mixture has a higher Resilient Modulus than Pen 60/70 asphalt at high temperatures and gives better crack resistance. Overall, the EPG76 modified asphalt mixture shows better performance under overload and high-temperature conditions.