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原文传递 DCT Low Temperature Fracture Testing Pilot Project.

题名：	DCT Low Temperature Fracture Testing Pilot Project.
作者：	Deusen, D. V.; Johanneck, L.; Geib, J.; Garrity, J.; Hanson, C.
关键词：	Asphalt pavements, Pavement design, Construction engineering, Fracture properties, Cracking, Thermal degradation, Asphalt mixtures, Minnesota, Disk-shaped compact tension (DCT) test
摘要：	This report summarizes efforts of using the disk-shaped compact tension (DCT) test to measure thermal fracture properties of asphalt mixtures on five asphalt paving projects in Minnesota during the 2013 construction season. Five construction projects throughout the state were chosen by a team of researchers at the Minnesota Department of Transportation (MnDOT) and University of Minnesota Duluth (UMD) representing differing climatic conditions, construction practices, and asphalt PG binder grades. Contractors from these varying projects provided UMD with mix design and production pills and MnDOT with loose production mix and raw materials for specimen fabrication. Testing was done to verify mixes met the required fracture energy value of 400 J/m2. If DCT results did not meet this requirement, mix adjustment recommendations were made by the research team. When recommendations were accepted, test sections with adjusted mix were paved. DCT testing was conducted on both adjusted and unadjusted production mix.
总页数：	Deusen, D. V.; Johanneck, L.; Geib, J.; Garrity, J.; Hanson, C.
报告类型：	科技报告