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原文传递 EVALUATION OF FRACTURE RESISTANCE OF ASPHALT MIXES CONTAINING RECYCLED ASPHALT PAVEMENT USING SCB TEST

题名：	EVALUATION OF FRACTURE RESISTANCE OF ASPHALT MIXES CONTAINING RECYCLED ASPHALT PAVEMENT USING SCB TEST
其他题名：	1.Ali,H.and Grzybowski,K.(2012)."Life Cycle of Hot In-Place Pavement Recycling,"Transportation Research Record 2292,Washington,D.C.,pp.29-35.
正文语种：	英文
作者：	Srinivas F. Chitragar
关键词：	resistant；different；evaluation；diameter；surf；sample；notch；halt；present；integra
摘要：	The present study was undertaken to evaluate fracture resistance of Hot Mix Asphalt (HMA) and Warm Mix Asphalt (WMA) containing Recycled Asphalt Pavement (RAP) using newly developed Semi-Circular Bending (SCB) test. Two different WMA additives, one Wax based (W) and one Surfactant (S) based were selected in this study. Two HMA mixes: HMA+0％ RAP, HMA+30％ RAP and two WMA mixes:WMA+30％ RAP- W (wax based WMA additive), and WMA+30％ RAP-S (surfactant based WMA additive) were designed and tested in the laboratory. The SCB samples of 150 mm diameter and 50 mm height with different notch depths: 20 mm, 25 mm and 32 mm were prepared in the laboratory with target air voids in range of 6.5±0.5％. The samples were tested by applying a monotonic load at a rate of 0.5 mm/min at 35℃. A critical energy release rate (J-integral) or Jc value was calculated from the SCB test. The fracture resistant ranking of the mixes based on Jc value was found to be in the following order: HMA+30％ RAP>WMA+30％ RAP- W>HMA+0％ RAP>WMA+30％ RAP-S, indicating a better fracture resistant of a mix with RAP. The WMA mix containing surfactant additive showed the lowest value of Jc, showing a poor fracture resistant of this mix compared to other mixes.
出版年：	2016
论文唯一标识：	I-75Y2016V44N01004
英文栏目名称：	Technical Papers
期刊名称：	Indian Highways
拼音刊名(出版物代码)：	I-75
卷：	44
期：	01
页码：	17-22