500密度等级轻质陶粒混凝土的实验研究  

Experimental Study of Lghtweight Vitrified Concrete with 500 Density Grade

作　　者：余海燕 王睿智 YU Haiyan;WANG Ruizhi(School of Materials Science and Engineering,TCU,Tianjin 300384,China)

机构地区：[1]天津城建大学材料科学与工程学院,天津300384

出　　处：《天津城建大学学报》2023年第3期172-176,共5页Journal of Tianjin Chengjian University

摘　　要：为研制一种轻质、保温、节能等多功能的建筑墙体材料,着重研究了陶粒的粒径及掺量、粉煤灰用量、泡沫掺量等因素对轻质陶粒混凝土强度、容重以及导热系数等性能的影响.研究结果表明:掺入一定量的陶粒可以提升抗压强度,降低表观密度和坍落度;掺入一定量的粉煤灰可以提高混凝土抗压强度,对表观密度和坍落度影响较小;泡沫掺量对混凝土的抗压强度、表观密度、坍落度和导热系数影响较大.最终确定5~10 mm陶粒粒径,30%陶粒掺量,20%粉煤灰掺量和30%泡沫掺量为最佳配比,此时其抗压强度为3.7 MPa,坍落度为87 mm,表观密度为545 kg/m3,导热系数为0.106 W/(m·K).To develop a multi-function wall-building material with lightweight,heat-preserving,and energy-saving properties,etc.,this paper mainly researches the effects of the particle size and admixture of ceramic granules,the amount of fly ash,and the amount of foam admixture and other factors on the properties of lightweight ceramic concrete such as strength,capacity and thermal conductivity.The results of the study show that:mixing a certain amount of ceramic granules can improve the compressive strength and reduce the apparent density and slump;mixing a certain amount of fly ash can improve the compressive strength of concrete,which has a small effect on the apparent density and slump;the amount of foam mixing has a greater effect on the compressive strength,apparent density,slump and thermal conductivity of concrete.Finally,it was determined that 5~10 mm ceramic particle size,30%ceramic particle admixture,20%fly ash admixture and 30%foam admixture were the best mix,and the compressive strength was 3.7MPa,slump was 87mm,apparent density was 545 kg/m3 and thermal conductivity was 0.106 W/(m·K).

关 键 词：轻质陶粒混凝土 强度 导热系数 

分 类 号：TU528.2[建筑科学—建筑技术科学]