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原文传递 Estimation of Low Temperature Properties of RAP Binder without Extraction

题名：	Estimation of Low Temperature Properties of RAP Binder without Extraction
作者：	Amirkhanian, S.; Xiao, F.; Corley, M.
关键词：	South Carolina (State)##Mechanistic Empirical Pavement Design Guide (MEPDG)##Recommendation##Implementation##Pavement design##Data collection procedures##Subgrade characterization##Asphalt concrete (AC)##South Carolina Department of Corrections (SCDC)##Reclaimed Asphalt Pavement (RAP)##
摘要：	In recent years, the use of reclaimed asphalt pavement (RAP) as a component of asphalt mixtures has become a common practice. For many years, researchers and DOT officials have questioned the adverse effects, if any, of using solvents to extract and recover the binder. Therefore, researchers have been investigating new methods, without extraction techniques, of estimating the RAP binder properties, especially with respect to the low-temperature characteristics of binders and the mixtures. The major goal of this research project was to determine if the low-temperature properties of the aged asphalt binder in RAP could be obtained by using the fines (-#50 to +#100) generated from sieved RAP materials rather than from the binder extracted from the RAP. In addition, the low-temperature characteristics of several mixtures containing RAP were studied and evaluated for any correlation with the binder properties. Several samples were made with different RAP sources, different percentages of RAP content, various low temperatures (i.e., 0, -6, -12, and -18 °C), and at many states (i.e., virgin, RTFO, and PAV). In addition, some of the RAP sources were obtained after one year and BBR testing was conducted. Other testing procedures and specifications such as indirect tensile strength and semicircle bending (SCB) were used and evaluated.
总页数：	411
报告类型：	科技报告