Variation of Soaking Time on Asphalt Concrete Properties using Anti Stripping Materials

Abstract

The purposes of this study were to obtain Marshall property values and determine the optimum submersion time in AC-WC asphalt concrete mixture using anti-stripping added ingredients. Marshall specimens were made with an optimum asphalt content of 6%, wetfixbe content of 0.3% to asphalt and each was made with a variation of submersion time 3, 6, 9, 12, 15, 18, 21, 24, 36 and 48 hours. The method of implementation is by mixing the wetfixBe first with asphalt, then aggregate according to the proportion of the ideal gradation of the mixture. Marshall testing method based on SNI 06-2489-1991. The results of the study found that the addition of submersion time can increase the percent value of Void Filled with Bitumen (VFB) and flow and reduce the percent of Void in Mix (VIM), percent of Void in the Mineral Aggregate (VMA), Stability, and Marshall Quotient. The submersion period that still meets Marshall property is at the soaking time of 3 to 45 hours. The Optimum Soaking Time for asphalt concrete mix is 24 hours, with VMA value 17,80%, VFB 74,04%, VIM 4,63%, Stability 1071.76 kg, flow 3.25 mm and MQ 360 kg / mm, asphalt concrete mixture meets Bina Marga 2018 specifications.