空心玻璃微珠对泡沫混凝土性能的影响.pdfVIP

学兔兔 2014年第 2期 (总第 292期 ) 混 凝 土 原材料及辅助物料 Number 2 in 2014(Total No．292) Concrete MATERIAI．AND ADMINICLE doi：10．3969~．issn．1002-3550．2014．02．019 空心玻璃微珠对泡沫混凝土性能的影响 王 晴，吴陶俊。邱琳格。姚 琦 (沈阳建筑大学材料科学与工程学院，辽宁 沈阳 1 10168) 摘 要：泡沫混凝土的干密度和抗压强度是相互矛盾的，它们之间存在负相关关系。空心玻璃微珠是一种质量轻、强度高、导热 系数低、热稳定性好的新型轻质材料。通过掺加空心玻璃微珠研究其对泡沫混凝土性能的影响，从而制备轻质保温的泡沫混凝土。 结果表明：泡沫混凝土的导热系数随着空心玻璃微珠掺量的增加而降低，当泡沫混凝土的干密度在120~200 kg／ma时，导热系数 最小为O．044 W／(m·K)。空心玻璃微珠的适宜掺量为5％～15％。 关键词：泡沫混凝土；空心玻璃微珠；干密度；抗压强度；导热系数 中图分类号：TU528．041 文献标志码：A 文章编号： 1002—3550(2014)02—0071—04 Effect of hollow glass microsphere on performance of foam concrete WANGQing，删 Taoflm，QIULinge，YAO (School ofMaterialsScience andEngineering，Shenyang JianzhuUniversity，Shenyang 110168，China) Abstract： Dry density and compressive strength of foam concre~are conflicting，there is a negative relationship between them．Hollow glass microsphere is a new lightweight material which is lightweight，high strength，low thermal conductivity and good thermal stability．In order to prepare lightweight foam concre~and to achieve the required strength．researched the effects ofdifferent dosage on properties of foam concr~e through adding hollow glass microspheres．The results showed that the thermal conduaivity of foam concrete increased as the hollow glass mierosphere increased，and the dry densities of foam concrete were between 120,-200 kg／m3,the minimum thermal con- ductivitywas 0．044W／(m。K)．Tbeappropriatedosage ofhollowglassmicrospherewas 5％-15％． Keywords：foam concrete；hollowglassmicrosphere；drydensity；compressive strength；thermal conductivity