Effect of polysaccharides on the hydration of cement paste at early ages

被引：189

作者：

Peschard, A ^{[1
]}

Govin, A ^{[1
]}

Grosseau, P ^{[1
]}

Guilhot, B ^{[1
]}

Guyonnet, R ^{[1
]}

机构：

[1] Ecole Natl Super Mines, LPMG Proc Granular Syst Lab, CNRS UMR 5148, Ctr SPIN,Dept Mat Engn PC2M, F-42023 St Etienne, France

来源：

CEMENT AND CONCRETE RESEARCH | 2004年 / 34卷 / 11期

关键词：

hydration; polymers; polysaccharides; retardation; cement paste;

D O I：

10.1016/j.cemconres.2004.04.001

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This work deals with the relative efficiency of polysaccharides and their influence on cement hydration. Several parameters such as the structure, concentration, average molecular weight, and soluble fraction value of polysaccharides were examined. Cement hydration was monitored by isothermal calorimetry, thermogravimetry (TGA), and Fourier transform infrared (FTIR) spectroscopy. Results clearly show that retardation increases with higher polysaccharide-to-cement weight ratio (P/C). Low-molecular-weight starch showed enhanced retarding effect on the hydration of cement. The retardation effect of polysaccharides is also dependent on the composition of cement. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：2153 / 2158

页数：6

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