粘土陶粒制备多孔混凝土的初步研究  

PREPARATION OF POROUS CONCRETE USING CLAY CERAMISITE

作　　者：奚新国[1] 许仲梓[2] 

机构地区：[1]盐城工学院材料工程学院,江苏盐城224051 [2]南京工业大学材料科学与工程学院,南京210009

出　　处：《建筑技术》2013年第11期1028-1030,共3页Architecture Technology

基　　金：国家自然科学基金资助项目(50072008);江苏省高校科研成果产业化项目(JHZD09-33)

摘　　要：对粘土陶粒的X-ray图谱进行分析,其主要成分为石英。测定了粘土陶粒的颗粒级配、堆积密度、表观密度、孔隙率和吸水率等基本物理性能。对粘土陶粒多孔混凝土的配合比进行了设计计算。所制备的8组多孔混凝土的28d抗压强度都大于5MPa,孔隙率大多数大于25%。在试验范围内,水灰比越大,水泥用量越小,混凝土的孔隙率越小,抗压强度越大,250kg/m3是这种混凝土的合理水泥用量。The main contains of clay ceramsite is quartz by X-ray analysis. The grade of grains, the bulk unit weight, the specific gravity, the void ratio and the water-absorption of clay ceramisite have been measured. The mix-ratio of clay ceramisite porous concrete has been designed. The compressive strength of the porous concretes is bigger than 5MPa after curing 28 days, and its porosity is almost bigger than 25%. With the increasing of water-cement ratio, and the decreasing of cement dosage, the porosity of the clay ceramisite porous concrete decreased, and its compressive strength increased. For the clay ceramisite porous concrete, the appropriate cement dosage is 250kg/m3.

关 键 词：粘土陶粒 多孔混凝土 配合比 孔隙率 抗压强度 

分 类 号：TU528.2[建筑科学—建筑技术科学]