Effect of saccharides on the hydration of ordinary Portland cement

被引：84
|
作者：
Kochova, K. [1 ]
Schollbach, K. [1 ]
Gauvin, F. [1 ]
Brouwers, H. J. H. [1 ]
机构：
[1] Eindhoven Univ Technol, Dept Built Environm, POB 513, NL-5600 MB Eindhoven, Netherlands
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 150卷
关键词：
Hydration; Retarding effect; Sugars; Natural fibres; Chemical composition; BUILDING ENERGY EFFICIENCY; WATER HYACINTH; HEAVY-METALS; WOOD; FIBERS; COMPATIBILITY; COMPOSITES; PRODUCTS; SUGARS; WASTE;
D O I：
10.1016/j.conbuildmat.2017.05.149
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Recently, the use of natural fibres as a sustainable alternative for reinforcements in cement-based materials has increased significantly. However, these lignocellulose fibres containing saccharides can have important retarding effects on cement hydration. The objective of this study is to characterise the effect of different organic compounds present in lignocellulose fibres on the cement hydration reactions. For a better understanding of this process, sugars such as fructose, glucose and sucrose, lignin and cellulose have been added to a cement paste as well as leachates of fibres. Experimental results show that glucose, mannose and xylose in fibre leachates had a significant impact on the cement hydration, slowing down the hydration for up to 2 days. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：268 / 275
页数：8
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