基于成熟度的二灰稳定碎石抗压回弹模量预测方法  

Prediction method of compressive resilience modulus of lime-fly ash stabilized macadam based on maturity method

作　　者：马士宾 赵宏良 李盈霞 卿龙邦 杨志伟 MA Shibin;ZHAO Hongliang;LI Yingxia;QING Longbang;YANG Zhiwei(School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;Tianjin Hengyishengtai Road Construction Material Technology Co. , Ltd. , Tianjin 300380, China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]天津市亨益晟泰筑路材料科技有限公司,天津300380

出　　处：《中国科技论文》2022年第7期705-711,共7页China Sciencepaper

基　　金：国家自然科学基金资助项目(51779069);天津市交通运输科技发展计划项目(2019-08)。

摘　　要：为了更好地了解二灰稳定碎石抗压回弹模量与温度和龄期的关系,首先通过大量室内试验,得到在不同养护温度下4种配合比二灰稳定碎石的7、14、28、42、60、90 d抗压回弹模量,然后根据试验结果,基于成熟度方法构建了等效龄期的二灰稳定碎石抗压回弹模量预测模型,最后通过对模型预测值与实测值进行对比,验证了预测模型的准确性。结果表明,二灰稳定碎石抗压回弹模量与成熟度具有较高的相关性,基于等效龄期的二灰稳定碎石抗压回弹模量预测值与实际值非常接近。In order to better understand the relationship between the compressive resilience modulus of lime-fly ash stabilized macadam and temperature and age,firstly,through a large number of indoor tests,the 7 d,14 d,28 d,42 d,60 d and 90 d compressive resilience moduli of lime-fly ash stabilized macadam with four mix proportions under different curing temperatures were obtained.Secondly,based on experiment results,a prediction model of compressive resilience modulus of lime-fly ash stabilized macadam with equivalent age was established combined with the maturity method.Finally,the accuracy of the prediction model was verified by comparing the predicted value of the model with the measured value.The results show that the compressive resilience modulus of lime-fly ash stabilized macadam has a high correlation with its maturity and the predicted values of equivalent age model are very close to test values.

关 键 词：道路工程 二灰稳定碎石 成熟度 抗压回弹模量 

分 类 号：U416.1[交通运输工程—道路与铁道工程]