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原文传递 EMPIRICAL EVALUATION OF OLIVE HUSK IN ASPHALT CEMENT BINDER AND BITUMINOUS CONCRETE.

题名：	EMPIRICAL EVALUATION OF OLIVE HUSK IN ASPHALT CEMENT BINDER AND BITUMINOUS CONCRETE.
作者：	Al-Masaeid-HR; Hamed-MM; Khedaywi-TS
关键词：	ASPHALT-CEMENTS; BINDERS-; BITUMINOUS-CONCRETES; OLIVE-HUSK; PENETRATION-; SOFTENING-POINTS; DUCTILITY-TESTS-ASPHALTS; ASPHALTIC-MIXTURES; LIMESTONE-AGGREGATES; BASALT-COARSE-AGGREGATE; GRANITES-; MARSHALL-TEST; STRIPPING-; IMMERSION-TEST; INDIRECT-TENSILE-TEST; STIFFNESS-; LOW-TEMPERATURES; HIGH-TEMPERATURE; BRITTLENESS-; WORKABILITY-; STABILITY-; DURABILITY-; MOISTURE-DAMAGE; FREEZE-THAW-DURABILITY
摘要：	The results of an experimental study undertaken to evaluate quantitatively the effects of olive husk material on the properties of both asphalt cement binder and bituminous concrete mixtures are summarized. Olive husk material was added to asphalt cement at four levels, ranging from 0 to 15% by total weight of binder. For each husk-asphalt binder, physical behaviors of binder, including penetration at different temperatures, softening point, and ductility tests, were investigated. The previous husk-asphalt binders were used to prepare husk-asphalt mixtures. Three types of aggregates, including limestone, basalt, and granite, were used in this study. For each level of husk-asphalt and aggregate type, Marshall, stripping, Marshall immersion, and indirect tensile tests were performed on the laboratory-made specimens with 50 blows on each face. The results indicated that the addition of olive husk material up to 10% by total weight of binder would reduce the binder stiffness at low temperatures, increase the stiffness at high temperatures, and help reduce brittleness and temperature sensitivity of binders. For all types of aggregate mixtures, the addition of olive husk material improved workability and stability and reduced the optimum binder content compared with asphalt mixtures without olive husk. The inclusion of olive husk, up to 10%, in bituminous concrete mixtures improved stripping resistance, durability, water and temperature resistance, and resistance to both moisture and repeated freeze-thaw induced damage.
总页数：	Transportation Research Record. 1994. (1436) pp124-132 (2 Fig., 10 Tab., 17 Ref.)
报告类型：	科技报告