裂缝防治聚酯玻纤布的抗剪和疲劳性能  

Shear and Fatigue Performance of Fiberglass-Polyester Paving Mat for Crack Resistance

作　　者：李峰[1] 徐剑[1] 

机构地区：[1]交通运输部公路科学研究院道路结构与材料交通行业重点实验室,北京100088

出　　处：《济南大学学报（自然科学版）》2013年第2期212-216,共5页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金(51008146);交通运输部交通建设科技计划(2011318223410)

摘　　要：采用两种聚酯玻纤布(试件A和试件B)进行抗剪切和疲劳实验,与无聚酯玻纤布试件作对比,研究其对层间黏结力和防治路面反射裂缝能力的影响。经剪切和疲劳实验仪器测试:试件A和试件B的抗剪强度分别下降为对比试件的31.3%和20.5%;对比试件、试件A及试件B的裂缝发展速率分别为3.03、1.90和4.20 mm/万次。实验结果表明,聚酯玻纤布影响层间黏结能力,从而会影响其防治反射裂缝能力;铺设聚酯玻纤布必须注重层间的黏结程度。In order to research the influence of fiberglass polyester paving mats on the interlayer bond and the degradation of reflect crack resistance performance,we tested the shear and fatigue performance of two specimens with fiberglass polyester paving mats(specimen A and B) and a contrast specimen without fiberglass polyester paving mats.The results show that the shear strength of specimen A and B reduces to 20.5% and 31.3% of that of the contrast specimen,respectively,and crack propagation rates of the contrast specimen,specimen A and B are 3.03 mm,1.90 mm and 4.20 mm per ten thousand times,respectively.This indicates that fiberglass polyester paving mats have a great influence on interlayer bond so that reduce their crack resistance performance.So,one should pay great attention to the interlayer bond when paving fiberglass polyester paving mat.

关 键 词：道路工程 裂缝 聚酯玻纤布 抗剪性能 疲劳性能 

分 类 号：U414[交通运输工程—道路与铁道工程]