Experimental-mechanistic analysis of pavement base deflections measured with light weight deflectometer

作     者：Yao Yao Shuo Li Guangyuan Zhao Yi Jiang Yao Yao;Shuo Li;Guangyuan Zhao;Yi Jiang

作者机构：Shanghai Urban Construction Design and Research Institute(Group)Co.Ltd.Shanghai 200000China Indiana Department of TransportationWest LafayetteIN 47906USA Department of Civil and Environmental EngineeringUniversity of WaterlooWaterlooON N2L 3G1Canada School of Construction Management TechnologyPurdue UniversityWest LafayetteIN 47907USA 

出 版 物：《Journal of Traffic and Transportation Engineering(English Edition)》 (交通运输工程学报（英文版）)

年 卷 期：2023年第10卷第2期

页      面：320-330页

核心收录：

学科分类：08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：supported in part by the Joint Transportation Research Program administered by the Indiana Department of Transportation and Purdue University 

主　　题：Pavement Light weight deflectometer Compaction Deflection Moisture content Modulus 

摘      要：An extensive experimental-mechanistic study was conducted to reveal the relationship between the light weight deflectometer(LWD)measured deflections and the degree of compaction of pavement base *** laboratory experiments and test pits experiments were performed with different types of pavement base *** modulus based maximum allowable LWD deflections under different structural and compaction conditions were developed for the most commonly used pavement base aggregate in *** maximum allowable deflections are based on the equivalent subgrade modulus and the thickness of the layer to be *** is emphasized that the LWD deflections must be measured as soon as the material is compacted or before the moisture content decreases beyond a specified ***,the maximum allowable deflections are specified in terms of the difference between the actual moisture content and the optimum moisture *** maximum allowable deflection values provide a sound basis for compaction quality control using LWD devices.