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二灰碎石混合料抗冲刷性能试验研究
引用本文:滕旭秋,陈忠达,任伟.二灰碎石混合料抗冲刷性能试验研究[J].公路交通科技,2005,22(10):27-30.
作者姓名:滕旭秋  陈忠达  任伟
作者单位:1. 长安大学公路学院,陕西,西安,710064;兰州交通大学土木学院,甘肃,兰州,730070
2. 长安大学公路学院,陕西,西安,710064
3. 开封市公路管理局,河南,开封,475000
摘    要:利用冲刷试验仪进行了不同材料、不同级配二灰碎石混合料的冲刷试验研究,并通过试验确定了二灰碎石混合料的预冲刷时间,提出了在扣除预冲刷时间对试验结果的影响后,可利用7min内的单位时间冲刷率,作为评价二灰碎石混合料抗冲刷性能的指标。试验结果表明,影响二灰碎石混合料抗冲刷性能的主要因素是集料的级配状况,结合料的影响较小。

关 键 词:二灰碎石  预冲刷时间  评价指标  冲刷试验  级配类型
文章编号:1002-0268(2005)10-0027-04
收稿时间:2004-07-20
修稿时间:2004年7月20日

Laboratorial Study on Anti-brushing Performance of Lime-fly Ash Stabilized Aggregates Mixtures
TENG Xu-qiu,CHEN Zhong-da,REN Wei.Laboratorial Study on Anti-brushing Performance of Lime-fly Ash Stabilized Aggregates Mixtures[J].Journal of Highway and Transportation Research and Development,2005,22(10):27-30.
Authors:TENG Xu-qiu  CHEN Zhong-da  REN Wei
Abstract:The antibrushing performance of limefly ash stabilized aggregates mixtures,composed of different materials and different gradation,was tested by the brushing instrument in the laboratory.The pre-brushing time was determined through the test.The rate of brushing in 7 minutes was propsed to evaluate antibrushing performance of limefly ash stabilized aggregates mixtures excluding the influence of prebrushing time.The results show that antibrushin performance of limefly ash stabilized aggregates is mainly affected by the gradation of the aggregates and little affected by the lime and fly ash.
Keywords:Limefly ash stabilized crushed stone  Prebrushing time  Evaluating index  Brushing test  Gradation type
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