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.
出处
《混凝土》
CAS
CSCD
北大核心
2009年第10期110-112,共3页
Concrete
