聚酯纤维对水泥碎石强度影响的试验研究  

Experimental Study of Influence of Polyester Fibre on Intensity of Cement-Stabilized Macadam

作　　者：霍宏娟 徐博书[2] 张素青[3] 李金[4] 

机构地区：[1]中煤西安设计工程有限责任公司,陕西西安710054 [2]大连理工大学,辽宁大连116024 [3]长安大学公路学院,陕西西安710054 [4]中国矿业大学建筑工程学院,江苏徐州221008

出　　处：《徐州建筑职业技术学院学报》2009年第2期22-24,37,共4页Journal of XUZHOU Institute of Architectural Technology

摘　　要：为研究聚酯纤维的掺入对水泥碎石强度产生的影响,通过试验获得水泥碎石抗压、劈裂强度随纤维掺量的变化规律,分析了聚酯纤维对水泥碎石强度影响的作用机理,提出基于强度指标的最佳纤维掺量.试验结果表明:劈裂强度比抗压强度对纤维掺量更为敏感,最佳纤维含量在0.70×10-3左右.In order to study the influence of added polyester fibre on the intensity of cement-stabilized macadam, by experiment obtained were the variation laws of the compressive strength and splitting strength of cement-stabilized macadam with the fibre adding rates. This paper analyzed the mechanism of the influence of polyester fibre on the intensity of cement-stabilized macadam, and suggested the optimal adding rate of polyester fibre based on intensity indexes. The experimental results showed that the splitting strength was more sensitive to the polyester fibre adding rate than the compressive strength and the optimal content of polyester fibre would be around 0.70×10^-3.

关 键 词：聚酯纤维 水泥碎石 强度 作用机理 

分 类 号：U414[交通运输工程—道路与铁道工程]