改性氟石膏用于轻质泡沫混凝土墙体材料性能研究  

Study on properties of modified fluorogypsum for lightweight foam concrete wall materials

作　　者：刘文斌[1] 周慧[1] 房新科 刘涛 王华 张晓青 LIU Wenbin;ZHOU Hui;FANG Xinke;LIU Tao;WANG Hua;ZHANG Xiaoqing(Changzhou Institute of Engineering Technology,Changzhou 213164,China;Henan Institute of Building Science Co.Ltd.,Zhengzhou 450053,China;Changzhou Anzhen Construction Engineering Testing Co.Ltd.,Changzhou 213168,China)

机构地区：[1]常州工程职业技术学院,江苏常州213164 [2]河南省建筑科学研究院有限公司,河南郑州450053 [3]常州安贞建设工程检测有限公司,江苏常州213168

出　　处：《新型建筑材料》2019年第10期51-54,共4页New Building Materials

摘　　要：通过掺不同改性剂来缩短氟石膏的凝结时间、激发强度,并将其应用于轻质泡沫混凝土墙体材料。研究表明:复合改性剂C相比改性剂A、B能更好地激发氟石膏的强度,缩短凝结时间。在掺量为0.9%时,其初凝时间为4.5 h,28 d抗压强度为19.51 MPa,无泛霜现象。制备的氟石膏基泡沫混凝土墙体材料密度为338~447 kg/m3,导热系数为0.037~0.054 W/(m·K),保温性能优异。XRD和SEM研究表明,墙体材料水化后产物以长条状二水石膏晶体为主。Different modifiers are added to shorten the initial setting time and stimulate strength of fluorogypsum,and it is applied to light foamed concrete wall materials.The test shows the composite modifier C can excite the strength of fluorogypsum and shorten the setting time than A and B.Mixing 0.9%,the initial setting time is 4.5 h,and the compressive strength is 19.51 MPa,without frost phenomenon.Test of fluorogypsum based foam concrete wall material shows excellent insulation performance,when its density is 338~447 kg/m3,and thermal conductivity is about 0.037~0.054 W/(m·K).The results of XRD and SEM show long strip gypsum crystal is the main one after hydration of wall material.

关 键 词：氟石膏 改性剂 泡沫混凝土 墙体材料 

分 类 号：TU528.2[建筑科学—建筑技术科学] TQ177.375[化学工程—硅酸盐工业]