纤维素醚的结构特点及对砂浆性能的影响  

Structure characteristic of cellulose ethers and its effect on mortar performances

作　　者：詹镇峰[1] 李从波[1] 陈文钊 

机构地区：[1]广州大学工程材料研究所,广东广州510006 [2]广州市盈坚建材科技发展有限公司,广东番禺511000

出　　处：《混凝土》2009年第10期110-112,共3页Concrete

摘　　要：纤维素醚是预拌砂浆中主要的添加剂,介绍纤维素醚的种类及结构特点,并选用羟丙基甲基纤维素醚(HPMC)为添加剂,系统地研究对砂浆各项性能的影响。研究表明:HPMC能显著地改善砂浆的保水性,并有减水的效果,同时也能降低砂浆拌合物的密度、延长砂浆的凝结时间、降低砂浆的抗折、抗压强度。Cellulose ethers is the main additive for ready-mixed mortar.The types and structure characteristic of cellulose ethers were introduced, the effect of HPMC on mortar performances was studied.Test results show that HPMC can enhance mortar＇s water-retention obviously, reduce water usage, and decrease mortar＇s density, retard setting time, reduce flexible and compressive strength also.

关 键 词：预拌砂浆 羟丙基甲基纤维素醚(HPMC) 性能 

分 类 号：TU528.042[建筑科学—建筑技术科学]