Influence of short term oven aging on volumetric properties of asphalt concrete mixture containing modified Buton asphalt and limestone powder filler

Abstract

Abstract In an effort to develop the use of modified Buton asphalt (MBA), this study designed a concrete asphalt mixture using the MBA as the main binding material and modified it with limestone powder fillers to produce concrete asphalt that has good resistance to aging. Short-term aging test was simulated in the laboratory on a loose mixture. The volumetric void in mixture (VIM), void in mineral aggregate (VMA) and void filled asphalt (VFB) values were evaluated on compacted specimens and had experienced STOA. Based on VIM, VMA and VFB values, it can be noted that mixture that only used MBA or mixture that combined MBA and limestone powder can provide resistance to bleeding or cracking, sufficient durability and stable interface adhesion between asphalt films and aggregate surfaces.

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