新型建筑保温隔热材料的实验研究  

Research on a New Thermal Insulation Block Used in Building

作　　者：张明灿[1] 

机构地区：[1]福建省建筑科学研究院福建省绿色建筑技术重点实验室,福州350025

出　　处：《建材世界》2016年第4期14-16,共3页The World of Building Materials

摘　　要：以白炭黑(即沉淀二氧化硅)为主要原材料,添加胶凝材料高贝利特水泥熟料后拌合,掺入膨胀剂提高抗裂性能,加入短切碳纤维干拌成混合粉料;在粉料中加入一定量的水及高性能减水剂制成混合料浆,将料浆浇筑入立体三维玻璃纤维网架模具中,制备出具有一定强度的新型建筑保温块体材料;常温(即25℃)常压下,分别检测块体材料样品的密度、抗压强度、热导率。结果表明,干燥后的块体样品平均密度为262kg/m3、平均抗压强度为2.1 MPa、热导率为0.056 W/(m·K)。A new thermal insulation block with suitable compressive strength used in building was prepared by white carbon black（precipitated silica）.White carbon black was used as a matrix,the high-belite cement clinker as a binder,carbon fiber and three-dimensional glass fiber structure as a framework,set retarding superplasticizer and expanding admixture as multifunction admixture to reduce water consumption and improve the crack resistance,water as medium.Density,compressive strength and thermal conductivity at room temperature（25 ℃）and ambient pressure were measured,respectively.Results show that the sample has density of 262kg/m^3 and compressive strength of 2.1MPa.Also,at ambient pressure,the sample has thermal conductivity of 0.056 W·（m·K）at room temperature.

关 键 词：白炭黑 高贝利特水泥熟料 碳纤维 三维玻璃纤维网架 

分 类 号：TU551[建筑科学—建筑技术科学]