可再分散乳胶粉对水泥砂浆的改性作用  

Application of Redispersion Emulsoid Powder in Cement Mortar

作　　者：彭家惠[1] 毛靖波[1] 张建新[1] 瞿金东[1] 腾超[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400045

出　　处：《硅酸盐通报》2011年第4期915-919,共5页Bulletin of the Chinese Ceramic Society

摘　　要：特细砂水泥砂浆一般都存在和易性差、抗裂性能低等缺陷,而可再分散乳胶粉具有改善水泥砂浆各项性能的优点。本文对可再分散乳胶粉对特细砂水泥砂浆的和易性、抗裂性、抗渗性以及粘结性等的影响进行研究,结果表明,可再分散乳胶粉掺量达到1.5%时,特细砂水泥砂浆的压折比最低达到2.49,此时粘结强度和抗裂强度的增加量分别达到49%和84%。Cement mortar commonly presence workability bad, anti-crack low and so on, but the redisperible polymer powder can improve performance of cement mortar. This paper researched the influence of redispersible polymer powder on workability, anti-crack properties and bonding properties of cement mortar. The result showed that when redispersible emulsion powder admixture up to 1.5 % , the decrease of compressive strength/flexural strength to 2.49, the increase of bonding strength and anticrack strength is 49% and 84%.

关 键 词：砂浆 可再分散乳胶粉 柔韧性 抗裂性能 强度 

分 类 号：TU57[建筑科学—建筑技术科学]