羟乙基甲基纤维素对水泥砂浆性能的影响  

Effect of Hydroxyethyl Methylcellulose on Properties of Cement Mortar

作　　者：王培铭[1] 许绮[1] 李纹纹[2] 

机构地区：[1]同济大学混凝土材料研究国家重点实验室,上海200092 [2]同济大学继续教育学院,上海200092

出　　处：《建筑材料学报》2000年第4期305-309,共5页Journal of Building Materials

基　　金：国家教委留学回国人员科研专项基金

摘　　要：研究了羟乙基甲基纤维素对新拌砂浆和硬化砂浆的改性效果 .结果表明 ,羟乙基甲基纤维素明显提高了新拌砂浆的保水性 ,降低了新拌砂浆和硬化砂浆的体积密度 ,硬化砂浆的吸水率、抗压强度、抗折强度和弹性模量 。This paper deals with modifying effects of hydroxyethyl methylcellulose on both fresh and hardened mortar. The results have shown that the addition of hydroxyethyl methylcellulose significantly enhances water retention of fresh mortar, reduces bulk density of fresh and hardened mortars, water adsorption of hardened mortar, compressive strength, flexural strength and elastic modulus to some extent and hardly influences toughness of hardened mortar.

关 键 词：羟乙基甲基纤维素 水泥砂浆 硬化 抗压强度 抗折强度 保水性 弹性模量 体积密度 性能 韧性 

分 类 号：TU578.1[建筑科学—建筑技术科学] TU532.1