Abstract
One of the design parameters using mechanistic methods for structural evaluation of asphaltpavement is the modulus value obtained from the DSR test for asphalt modulus and UMATTA test for mixturemodulus. Tests were carried out on hot mix asphalt with sixteen combinations using reclaimed asphaltpavement, EAF slag and a combination of both with a percentage of up to 30%. The result of the mixturemodulus showed that the mixture with a combination of slag and Reclaimed Asphalt Pavement (RAP) gavebetter performance compared to the control mixture using asphalt pen 60/70 and natural aggregate. Thedevelopment of the mixture modulus model was analyzed statistically with the classical assumption test andthe determination of dependent variables based on the existing theoretical model. The asphalt stiffness moduluswas taken from the calibrated DSR test results, asphalt mix volumetric plus the variables of the RAP and slagpercentage in this study. Of the several models obtained, there were two different mixture volumetricparameters the void in mix and void filled with asphalt in the mixture both models were validated to thestiffness modulus of the mixture. From the test results obtained, the closest ratio range was the stiffnessmodulus of mixture model with the void in mix parameter.
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