Influence of Water Immersion on Stability of AC-WC Mixed with Gondorukem Additional Material

Abstract

Abstract One of the treatments that can be given to asphalt mixtures to determine the durability of the mixture is by water immersion. This study aims to analyze the stability value of Marshall mixture of AC-WC (Asphalt Concrete Wearing Course) by using modified Asbuton as a binder and gondorukem as added material due to water immersion. The method used in this research is experimental in the laboratory. AC-WC mixture is produced using modified Asbuton as a binder (Retona Blend 55) at optimum asphalt content of 6.25% and gondorukem as an additive at 0.0% and 2.5% content. The treatment given to the mixture is by soaking water for 0, 1, 3 and 7 days. The treatment given to the mixture is by soaking water for 0, 1, 3 and 7 days. The results showed that the Marshall stability value decreased with increasing water immersion time. Decrease in Marshall stability values that occur in specimens with immersion time of 1, 3 and 7 days for specimens without immersion are 21.34%, 25.56% and 28.25%, respectively.

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