Reinforced Geopolymer Materials with Natural Fibers: a Review

被引：0
作者：
Yang S. [1 ]
Zhao R. [1 ]
Zeng X. [1 ]
Jia W. [1 ]
Jin H. [1 ]
Li F. [1 ]
机构：
[1] School of Civil Engineering, Southwest Jiaotong University, Chengdu
来源：
Cailiao Daobao/Materials Reports | 2021年 / 35卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Alkali activated; Geopolymer concrete; Natural fibers; Plant fibers;
D O I：
10.11896/cldb.19100048
中图分类号：
学科分类号：
摘要：
Natural fiber is a renewable resource with a wide range of sources, low price and environmental protection. The research on the synthesis of composite materials with natural fiber instead of synthetic fiber has attracted widespread attention. On the other hand, geopolymer is a new inorganic silicate aluminate cementitious material, which is considered as an ideal substitute for ordinary Portland cement. Geopolymer concrete has the advantages of high early strength, fire prevention, high temperature resistance, environmental protection and effective fixation of heavy metals. Like ordinary concrete, it has high brittleness and poor crack resistance. Natural fiber reinforced geopolymer concrete has the characteristics of light weight, heat insulation and delaying concrete cracking. Moreover, it is environmentally friendly, can promote the sustainable development of resources, and has a good application prospect. The properties of natural fibers are quite different. In order to grasp the reinforcing effect and mechanism of the geopolymer concrete, this paper summarizes the recent research reports on the influence of natural fibers on the mechanical properties of geopolymer concrete at home and abroad. Firstly, the sources, treatment methods and basic mechanical properties of natural fibers are summarized. Then, the effects of natural fibers on the mechanical properties of alkali-activated fly ash/slag/metakaolin geopolymer composites are discussed in detail. Finally, the heat resistance of natural fiber reinforced geopolymer concrete is discussed, and some suggestions for further research are put forward. © 2021, Materials Review Magazine. All right reserved.
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页码：7107 / 7113
页数：6
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