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原文传递 PERFORMANCE OF RECYCLED HOT-MIX ASPHALT MIXTURES IN GEORGIA.

题名：	PERFORMANCE OF RECYCLED HOT-MIX ASPHALT MIXTURES IN GEORGIA.
作者：	Kandhal-PS; Rao-SS; Watson-DE; Young-B
关键词：	HOT-RECYCLING; ASPHALT-PAVEMENTS; GEORGIA-; PERFORMANCE-EVALUATIONS; AIR-VOIDS-CONTENT; MODULUS-OF-RESILIENCE; TENSILE-STRENGTH; HOT-MIX-ASPHALT; BINDERS-; PENETRATION-; VISCOSITY-; STABILITY-; CREEP-; T-TEST; STATISTICAL-ANALYSIS
摘要：	The Georgia Department of Transportation (GDOT) has been constructing recycled asphalt pavements routinely for about 4 years. This research project was undertaken to evaluate the performance of recycled pavements compared to virgin (control) asphalt pavements. Five projects, each consisting of a recycled section and a control section, were subjected to detailed evaluation. In situ mix properties (such as percent air voids, resilient modulus, and indirect tensile strength), recovered asphalt binder properties (such as penetration, viscosity, G/sin delta, and G sin delta), and laboratory recompacted mix properties (such as gyratory stability index and confined, dynamic creep modulus) were measured. A paired t-test statistical analysis indicated no significant differences between these properties of virgin and recycled mix pavements that have been in service from 1 1/2 to 2 1/4 years. Ten additional virgin mix pavements and 13 additional recycled pavements were also evaluated as two independent groups. No statistically significant differences were found between the recovered asphalt properties (penetration and viscosity) of these virgin and recycled pavements in service. The current GDOT recycling specifications and mix design procedures appear to be satisfactory based on the results of this study.
总页数：	Transportation Research Record. 1995. (1507) pp67-77 (6 Fig., 5 Tab., 10 Ref.)
报告类型：	科技报告