The Influence of Polycarboxylate-type Super-plasticizers on Alkali-free Liquid Concrete Accelerators Performance

被引：1

作者：

Guo, Wenkang ^{[1
]}

Yin, Haibo ^{[1
]}

Wang, Shuyin ^{[1
]}

He, Zhifeng ^{[2
]}

机构：

[1] Changjiang River Sci Res Inst, Wuhan 430010, Hubei, Peoples R China

[2] Changjiang Inst Survey Planning Design & Res, Wuhan 430010, Hubei, Peoples R China

来源：

ADVANCES IN ENERGY SCIENCE AND ENVIRONMENT ENGINEERING | 2017年 / 1829卷

关键词：

D O I：

10.1063/1.4979745

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Through studying on the setting times, cement mortar compressive strength and cement mortar compressive strength ratio, the influence of alkali-free liquid accelerators polycarboxylate-type super-plasticizers on the performance of alkali-free liquid accelerators in cement-based material was investigated. The results showed that the compatibility of super-plasticizers and alkali-free liquid accelerators was excellent. However, the dosage of super-plasticizers had a certain impact on the performance of alkali-free liquid accelerators as follows: 1) the setting times of alkali-free liquid accelerators was in the inverse proportional relationship to the dosage of super-plasticizers; 2)the influence of super-plasticizers dosage on the cement mortar compressive strength of alkali-free liquid accelerators was related to the types of accelerators, where exist an optimum super-plasticizers dosage for cement mortar compressive strength at 28d; 3)the later cement mortar compressive strength with alkali-free liquid accelerators were decreasing with the increment of the super-plasticizers dosage. In the practical application of alkali-free liquid accelerators and super-plasticizer, the dosage of super-plasticizer must be determined by dosage optimization test results.

引用

页数：5