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原文传递 EVALUATION OF NATURAL SANDS USED IN ASPHALT MIXTURES.

题名：	EVALUATION OF NATURAL SANDS USED IN ASPHALT MIXTURES.
作者：	Stuart-KD; Mogawer-WS
关键词：	SANDS-; ASPHALTIC-MIXTURES; PERFORMANCE-EVALUATIONS; RUTTING-; TEST-METHODS; SHAPE-; TEXTURES-; GRADATION-; QUANTITY-; MARSHALL-STABILITY-and-FLOW; GYRATORY-TESTS; TESTING-EQUIPMENT
摘要：	Five tests for sands were studied to determine whether they could distinguish good-performing from poor-performing natural sands. Performance was based on the effects of the sands on asphalt pavement rutting. The methods were National Aggregate Association Method A, direct shear, ASTM Method D3398, Michigan Department of Transportation Method MTM 118-90, and a flow rate method. The best methods for predicting how the sands would perform in pavements were the flow rate method and ASTM Method D3398. The combined effect of shape, texture, gradation, and quantity of sand on the susceptibility of an asphalt mixture to rutting was evaluated using Marshall stability and flow, the U.S. Army Corps of Engineers gyratory testing machine, Georgia loaded-wheel tester, and the French pavement rutting tester. None of these tests differentiated the poor- from the good-quality sands in the particular mixture tested.
总页数：	Transportation Research Record. 1994. (1436) pp115-123 (2 Phot., 6 Tab., 15 Ref.)
报告类型：	科技报告