基于性能试验的厂拌冷再生中长期使用性能研究  

Research on Medium and Long-term Performance of Cold In-plant Recycling Based on Performance Test

作　　者：王瑞远 齐兴强 刘鸿鹄 赵冬汉 Wang Ruiyuan;Qi Xingqiang;Liu Honghao;Zhao Donghan(Bijie Highway Administration of Guizhou Province,Bijie 551700,China;JSTI Group Co.,Ltd.,Nanjing 211110,China)

机构地区：[1]贵州省毕节公路管理局,毕节市551700 [2]苏交科集团股份有限公司,南京市211110

出　　处：《北方交通》2021年第3期55-58,共4页Northern Communications

摘　　要：为了研究泡沫沥青厂拌冷再生混合料中长期使用性能,基于性能试验分别采用水稳定性、抗冲刷性和疲劳性能试验,综合评价厂拌冷再生混合料的路用性能,最后结合试验段跟踪观测厂拌冷再生基层中长期的使用性能。研究表明,沥青用量为2.5%时,厂拌冷再生各项性能均最优,抗水损害性能和高温性能更优。当低应变时,沥青用量对疲劳寿命影响显著,高应变时沥青用量对疲劳寿命影响较小。厂拌冷再生基层具有良好的高温性能和抵抗永久变形能力。In order to study the medium and long-term performance of cold in-plant recycled mixture of foamed asphalt,the road performance of cold in-plant recycled mixture is evaluated comprehensively by tests on water stability,erosion resistance and fatigue performance based on the performance test.Finally,the medium and long-term performance of cold in-plant recycled mixture is observed according to the test section.The research shows that,when the asphalt content is 2.5%,the performance of cold in-plant recycling is the best,and the water damage resistance and high temperature performance are better.When the strain is low,the asphalt content has a significant effect on the fatigue life,while when the strain is high,the asphalt content has little effect on the fatigue life.The cold in-plant recycled base has good high temperature performance and resistance to permanent deformation.

关 键 词：厂拌冷再生 泡沫沥青 抗冲刷性能 疲劳性能 中长期使用性能 

分 类 号：U414.75[交通运输工程—道路与铁道工程]