RESILIENT MODULUS AND PERMANENT DEFORMATION CHARACTERISTICS EVALUATION OF ASPHALT CEMENT MIXTURE (AC-BINDER COURSE) USING MIXED HIGH ABRASION AGGREGATES AND STANDARD AGGREGATES

• Main Author: PRERY ADITHYA (NIM : 26913305), ASTRIEREZA
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/21297
• Institution: Institut Teknologi Bandung

Substandard aggregates is aggregates which isn't required at paving specification, such as specific gravity, plasticity, absorption and abrasion that will effect stickness at asphalt mixture. The objective of this research is to evaluate the influence of substandad aggregate-high abrasion value (>40%) were veried by standard aggregates (abrasion &#8804;40%) on a continuous gradation asphalt mixture (AC-BC) to the value of stiffness and deformation. Properties of aggregates were tested and compared using specification of Bina Marga 2010, while the mix of characteristics obtained through Marshall Test, Resilient Modulus using UMATTA and permanent deformation using Wheel Tracking Machine (WTM). Percentage of substandard aggregates and standard aggregates in this research is 100-0, 80-20, 60-40, 50-50 and 0-100. Abrasion, Aggregate Crushing Value (ACV) and Aggregate Impact Value (AIV) testing, results showed that increasing the propotion of standard aggregates will lower the abrasion, ACV and AIV value. Marshall test results on the variation of 60-40, 50-50 and 0-100 indicate that te addition of standard aggregate improving the Marshall Stability and residual strength index, but the residual strength index velue is still below of spesifications. UMATTA test results at 25°C and 45°C temperature variation of 60-40, 50-50 and 0-100 that mix stiffness (resilient modulus) higher. Test result of permanent deformation using WTM at temperature <br /> <br /> 45°C and 60°C, the highest dynamic stability value at 50-50 mixture. The test results using the asphalt mixture of aggregate and aggregate sub-standard gives a better result on the value of stiffness but it susceptible to degradation against overloading and long loading.