摘要
鉴于普通混凝土自重大、保温性能差等缺陷,研制出一种新型建筑节能材料煤矸石玻化微珠保温混凝土。试验采用煤矸石取代部分或全部石子作为粗骨料制成煤矸石玻化微珠保温混凝土,对不同煤矸石取代率玻化微珠保温混凝土的制作工艺、和易性能以及抗压强度和导热系数进行了研究和分析。试验结果表明:煤矸石玻化微珠保温混凝土满足可泵性能对坍落度的要求;煤矸石取代率不超过50%时,抗压强度能达到C40级以上;导热系数相对于普通混凝土下降50%以上,热工性能良好。从而验证了掺加煤矸石玻化微珠保温混凝土的可行性,对于后期煤矸石玻化微珠保温混凝土的优化设计具有重要参考价值。
In view of the ordinary concrete self weight,heat preservation performance defects and developed a new energy-savingbuilding materials, coal gangue thermal insulation glazed hollow bead concrete.Test using coal gangue replace some or all of the stones asthe coarse aggregate made of gangue thermal insulation glazed hollow bead concrete.Different coal gangue substitution rate of glass beadsinsulation of concrete production process,the workability and compressive strength and thermal conductivity were studied and analyzed.The test results showed that the coal gangue thermal insulation glazed hollow bead concrete meet the pump performance requirements ofslump.Coal gangue to replace rate of not more than 50% andthe compressive strength can reach more than C40.Thermal conductivitycompared with ordinary concrete decreased more than 50% and the thermal performance is good.In order to verify the feasibility of mixedwith coal gangue thermal insulation glazed hollow bead concrete, and for late coal gangue of glazed hollow bead insulation optimizationdesign of concrete has important reference value.
出处
《混凝土》
CAS
北大核心
2017年第2期152-154,160,共4页
Concrete
基金
国家自然科学基金资助(51308371)
教育部高等院校博士点基金资助(20101402120007)
山西省自然科学基金项目(2014011033-1)
关键词
煤矸石取代率
玻化微珠保温混凝土
坍落度
抗压强度
导热系数
coal gangue replacement rate
glazed hollow bead insulation concrete
slump
compressive strength
thermal conductivity
