西北工程技术学报2025，Vol.24Issue(1)：53-59,67,8.
包浆再生粗骨料沙漠砂混凝土力学性能分析
Mechanical Properties Analysis of Encrusted Recycled Coarse Aggregate Desert Sand Concrete
摘要
Abstract
In order to investigate the mechanical properties of encapsulated recycled coarse aggregate desert sand concrete,desert sand and encapsulated recycled coarse aggregate were used to partially replace natural sand and coarse aggregate to prepare the encapsulated recycled coarse aggregate desert sand concrete.Mechanical property tests were conducted to analyze the effects of encapsulated recycled coarse aggregate and desert sand substitution rate on the slum,rebound value,ultrasonic velocity,compressive strength,splitting tensile strength,and bending strength.The relationships among compressive strength,ultrasonic velocity,and rebound value were established.The results indicated that as the desert sand replacement ratio increased,the rebound value,ultrasonic velocity,compressive strength,splitting tensile strength,and bending strength increased initially and then decreased,reaching the maximum when the desert sand replacement ratio was 20%.With the increasing encapsulated recycled coarse aggregate replacement ratio,these mechanical properties showed a decreasing trend.When the replacement rate is 25%,the loss of mechanical performance is minimized.关键词
包浆再生粗骨料/替代率/力学性能/沙漠砂Key words
encapsulated recycled coarse aggregate/replacement ratio/mechanical properties/desert sand分类
土木建筑引用本文复制引用
罗强,马龙,刘海峰..包浆再生粗骨料沙漠砂混凝土力学性能分析[J].西北工程技术学报,2025,24(1):53-59,67,8.基金项目
宁夏自然科学基金项目(2023AAC03039) （2023AAC03039）
国家自然科学基金项目(52168034) （52168034）
宁夏高等学校一流学科建设(水利工程学科)项目(NXYLXK2021A03) （水利工程学科）
