水泥-石灰系外墙防水装饰砂浆的性能及作用机理研究  

Performance and mechanisms studying of cement-lime waterproof decorative mortar for exterior wall

作　　者：韩方晖[1] 王栋民[1] 许晨阳[1] 刘晓斌[1] 刘天德[1] 

机构地区：[1]中国矿业大学(北京),北京100083

出　　处：《新型建筑材料》2011年第3期67-69,共3页New Building Materials

摘　　要：采用化学改性技术研制成功一种水泥-石灰外墙防水装饰砂浆。通过白水泥-石灰复合降低砂浆的压折比,改善砂浆的柔韧性,从而减少砂浆开裂;在砂浆中掺入防水剂、颜料等添加剂,使砂浆具有优良的防水性能和装饰效果;并对水泥-熟石灰复合胶凝体系进行微观形貌观察和作用机理分析。试验结果表明,熟石灰用量为9%、白水泥用量为19%时,砂浆在强度、柔韧性、防水效果方面较佳;白水泥-石灰复合体系浆体水泥水化产物和石灰凝结产物相互包裹,形成相对疏松的微观结构,配以外加剂的使用,具有防水、透气功能。A lime-cement waterproof decorative mortar tor exterior wall was suceessfillly developed through chemical modification technology. The lime-white cement eomposite can reduee compressive/flexible ratio and improve the flexibility of the mortar, thus decrease the mortar cracking trend：meanwhile,adding specific water-proofing agent,pigments and other additives to mortar make the mortar have excellent waterproof properties and adornment effeet： Furthermure,researeh on mieroseopie structure and mechanism of cement-lime compound gel system was conducted. Results indicate that the mortar has better pruperties in strength, flexibility and waterproof effect when the dosage of lime is 9% and white cement is 19%：cement hydration produets and lime condensation product each package in lime-white cement composite system,form relatively loose microstrueture,and the use of admixtures makes the mortar have good waterproof and ventilaliun function.

关 键 词：防水装饰砂浆 外墙 白水泥 石灰 

分 类 号：TV432.4[水利工程—水工结构工程]