硅酸盐通报2024，Vol.43Issue(10)：3755-3764,10.
掺建筑垃圾水泥稳定碎石力学强度增长规律与预测模型
Mechanical Strength Growth Law and Prediction Model of Cement Stabilized Macadam with Construction Waste
摘要
Abstract
The effect of dosage of recycled aggregate from construction waste on the mechanical strength of cement stabilized macadam(CSM)was investigated,the optimal dosage and proportion of recycled aggregate were proposed based on the principle of the highest strength or the maximum dosage.The growth law of mechanical strength of cement stabilized macadam recycled aggregate(CSMRA)was investigated under the optimal dosage,a prediction model of mechanical strength of CSMRA was proposed,and the reliability of prediction was verified.The results show that the compressive strength of CSMRA increases and then decreases with the increase of recycled fine aggregate dosage,decreases with the increase of recycled coarse aggregate dosage,and the maximum dosage of recycled aggregate is 70％(mass fraction).The correlation coefficient of established mechanical strength growth equation and prediction model is more than 0.98,and the error between predicted value and measured value is no more than 14.0％.This indicates that the model can accurately predict the mechanical strength of CSMRA at other ages after determining cement dosage,aggregate type,mineral proportion and 7 d strength.关键词
建筑垃圾/水泥稳定碎石/力学强度/增长规律/预测模型Key words
construction waste/cement stabilized macadam/mechanical strength/growth law/prediction model分类
建筑与水利引用本文复制引用
张宇,蒋应军,范江涛,许晓平,俞晓松..掺建筑垃圾水泥稳定碎石力学强度增长规律与预测模型[J].硅酸盐通报,2024,43(10):3755-3764,10.基金项目
陕西省创新能力支撑计划(2022TD-06) （2022TD-06）
交通运输行业重点科技项目(2021-MS1-011) （2021-MS1-011）
长安大学中央高校基本科研业务费专项资金资助(300102213401) （300102213401）
