再生保温混凝土抗压强度试验分析  

Experimental Analysis on Compressive Strength of Recycled Aggregate Thermal Insulation Concrete

作　　者：游帆[1] YOU Fan(College of Engineering,Fujian Jiangxia University,Fuzhou,Fujian 350108,China)

机构地区：[1]福建江夏学院工程学院,福建福州350108

出　　处：《宜宾学院学报》2021年第6期7-10,26,共5页Journal of Yibin University

基　　金：福建省中青年教师教育科研项目(JT180580);福建江夏学院青年科研人才培育基金项目(JXZ2015005)。

摘　　要：在100%再生粗骨料基础上,研究再生细骨料取代率、再生细骨料粉体含量、玻化微珠掺量对再生保温混凝土抗压强度的影响规律.结果表明:随着再生细骨料取代率的提高,再生保温混凝土抗压强度降低.再生细骨料粉体含量不超过7%时,粉体对再生保温混凝土的抗压强度有利.玻化微珠体积掺量增加60%~120%,再生保温混凝土的抗压强度降低约1.1%~2.8%.再生粗、细骨料可用于制备抗压强度不低于C20的再生保温混凝土.The influence of replacement rate of recycled fine aggregate,the content of recycled fine aggregate powder and the content of vitrified micro bead on the compressive strength of recycled thermal insulation concrete were studied,based on 100%recycled coarse aggregate.The results show that:with the increasing of the replacement rate of recycled fine aggregate,the com⁃pressive strength of recycled thermal insulation concrete decrease.When the content of recycled fine aggregate powder is less than 7%,the powder is beneficial to the compressive strength of recycled thermal insulation concrete.The compressive strength of re⁃cycled thermal insulation concrete decreases by 1.1%~2.8%when the volume content of vitrified beads increases by 60%~120%.Recycled coarse and fine aggregate could be used to prepare recycled thermal insulation concrete,with compressive strength no less than C20.

关 键 词：再生保温混凝土 再生细骨料 粉体 玻化微珠 抗压强度 

分 类 号：TU528.59[建筑科学—建筑技术科学]