塔里木大学学报2025，Vol.37Issue(4)：82-90,9.DOI:10.3969/j.issn.1009-0568.2025.04.010
EPS沙漠砂混凝土抗压强度及保温性能研究
Research on compressive strength and thermal insulation performance of EPS desert sand concrete
摘要
Abstract
To address the increasing scarcity of river sand resources and issues such as the easy detachment and flammability of traditional thermal insulation materials in building structures,replacing river sand with desert sand and conducting research on integrated building structural and thermal insulation have become a research focus and development trend.This study utilized desert sand in Southern Xinjiang as a substitute for river sand,nine working conditions were set with different substitution rates of 0％,15％,25％,35％,45％,55％,65％,75％,and 100％.Based on optimal strength group,EPS volume proportions of 0.3 m3·m-3,0.6 m3·m-3,0.9 m3·m-3,1.2 m3·m-3 were admixed to investigate the mechanical and thermal insulation properties.The results showed that:1)When the desert sand substitution rate was 35％,the cubic compressive strength of the specimens increased by 2.27％compared to concrete without desert sand,with the best workability and a slump of 61 mm.2)At a 35％substitution rate,as the EPS content increased,the compressive strength of concrete gradually decreased while its plasticity and thermal insulation performance improved.The lowest thermal conductivity and best insulation effect were observed at an EPS content of 0.9 m3·m-3.3)Microstructural analysis indicated that at a 35％desert sand substitution rate,the specimens had the smallest internal crack width and the highest strength,which was consistent with the mechanical test results.This study can provide references for engineering application of EPS desert sand concrete.关键词
沙漠砂混凝土/聚苯乙烯颗粒/抗压强度/保温性能Key words
desert sand concrete/EPS/compressive strength/thermal insulation performance分类
建筑与水利引用本文复制引用
王荣,马兵,杨振赟,韩文韬,李疆,韩志强..EPS沙漠砂混凝土抗压强度及保温性能研究[J].塔里木大学学报,2025,37(4):82-90,9.基金项目
塔里木大学校长基金硕士人才项目(TDZKSS202241) （TDZKSS202241）
塔建三五九建工有限责任公司横向项目(SWJ2022KT22) （SWJ2022KT22）
