详情

当前位置：首页> 国外交通科技报告数据库 >详情

原文传递 ARKANSAS EXPERIENCE WITH CRUMB RUBBER MODIFIED MIXES USING MARSHALL AND STRATEGIC HIGHWAY RESEARCH PROGRAM LEVEL I DESIGN METHODS.

题名：	ARKANSAS EXPERIENCE WITH CRUMB RUBBER MODIFIED MIXES USING MARSHALL AND STRATEGIC HIGHWAY RESEARCH PROGRAM LEVEL I DESIGN METHODS.
作者：	Gowda-GV; Hall-KD; Elliott-RP
关键词：	CRUMB-RUBBER; HOT-MIX-ASPHALT; WET-PROCESS; DRY-PROCESS; MIX-DESIGN-METHOD; ASPHALT-CONTENT; VOIDS-; MARSHALL-MIX-DESIGN-METHOD; STRATEGIC-HIGHWAY-RESEARCH-PROGRAM; SUPERPAVE-LEVEL-I-MIX-DESIGN; RUT-RESISTANCE; MODULUS-OF-RESILIENCE; TENSILE-PROPERTIES; PERFORMANCE-
摘要：	Unmodified and crumb rubber modified mixes conforming to the Arkansas State Highway and Transportation Department Type II surface course specifications were designed for heavy traffic conditions and environmental conditions typical to Arkansas by using the Marshall and Superpave Level I methods. Specimens prepared at appropriate design asphalt contents were evaluated for both volumetric and performance considerations. Three mix types, an unmodified hot-mix asphalt concrete, a dry process rubber modified asphalt, and a wet process asphalt rubber, were included in the investigation. For the asphalt cement, crumb rubber, aggregate type, and aggregate gradation used, the design asphalt content and the voids in mineral aggregate (VMA) were reduced for the SHRP Level I method relative to the Marshall method. Incorporation of crumb rubber into hot-mix asphalt concrete provided increased rutting resistance; however, the rubber modified mixes did not show enhanced resilient and tensile properties when tested at 25 deg C. Also, the performance-related properties of the SHRP Level I asphalt-rubber mixes (5, 10, and 15% A-R blends) evaluated did not differ significantly at 5% level of significance.
总页数：	Transportation Research Record. 1996. (1530) pp25-33 (2 Fig., 8 Tab., 11 Ref.)
报告类型：	科技报告