【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。更多还原

【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.更多还原