玻璃轻石混凝土热工性能试验研究  

Experimental Research on Thermal Performance of Glass Pumice Concrete

作　　者：王瑞 邹昀[2] 高传超 周虹 WANG Rui;Zou Yun;Gao Chuan-chao;Zhou Hong

机构地区：[1]江苏华科建设工程质量检测有限公司,南京211800 [2]江南大学环境与土木工程学院,无锡214122

出　　处：《混凝土与水泥制品》2019年第2期76-79,共4页China Concrete and Cement Products

基　　金：2018年科技厅社会发展面上项目(BE2018625);2015年江苏省建筑节能与建筑产业现代化科技支撑项目;2016年江苏省建筑产业现代化示范基地项目

摘　　要：选用具有隐蜂窝多孔结构的玻璃轻石材料作为粗、细骨料取代普通混凝土中的砂和石制作自保温砌块,测试了砌块密度、导热系数等性能,并根据试验结果分析了水灰比、水泥用量、细骨料取代率对砌块力学性能、玻璃轻石粗骨料取代率对热工性能的影响。试验分析得到砌块的最佳配合比:水灰比0.42、水泥用量350 kg/m^3、玻璃轻石细骨料取代率100%、玻璃轻石粗骨料取代率100%。所制备的自保温砌块干密度为1 596 kg/m^3,导热系数为0.417 W/(m·K)。The glass pumice material with the hidden honeycomb porous structure is used as the fine and coarse aggregate to replace the sand and stone in the ordinary concrete to make the hidden honeycomb self-insulating block.Its density,thermal conductivity and compressive strength were tested.According to the test results,the effects of water-cement ratio,glass pumice coarse aggregate replacement rate,cement dosage and fine aggregate replacement rate on mechanical properties and thermal properties of the block were analyzed.The optimum mix ratio of the block is 0.42,the cement dosage is 350 kg/m^3,the replacement rate of glass pumice fine aggregate is 100%,and the replacement ratio of glass pumice coarse aggregate is 100%.The prepared self-insulating block has a dry density of 1596 kg/m^3 and a thermal conductivity of 0.417 W/(m·K).

关 键 词：玻璃轻石 自保温混凝土 砌块密度 导热系数 

分 类 号：TU528.2[建筑科学—建筑技术科学]