Application of Superabsorbent Polymer Hydrogel to Crack Self-Sealing of Cement-Based Materials

被引：0
|
作者：
Yang J. [1 ,2 ]
Duan X. [1 ]
Qiu J. [1 ]
Su Y. [1 ,2 ]
He X. [1 ,2 ]
机构：
[1] School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan
[2] Building Waterproof Engineering and Technology Research Center of Hubei Province, Wuhan
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2023年 / 51卷 / 11期
关键词：
cement-based material; crack; sealing efficiency; self-sealing; superabsorbent polymer;
D O I：
10.14062/j.issn.0454-5648.20230411
中图分类号：
学科分类号：
摘要：
Cement concrete is sensitive to cracking during service due to its brittleness and early susceptibility to shrinkage and deformation, further leading to the water seepage and leakage of concrete structure. The timely and effective repair of water leakage in cracked concrete has attracted recent attention in engineering. Superabsorbent polymer (SAP) hydrogel is a new type of self-sealing agent developed in recent years, which has the characteristics of rapid water absorption and significant volume expansion, and has a promising application potential in crack healing and sealing in humid environment. This review represented the basic design method of self-sealing cement-based materials based on hydrogel, discussed the working mechanism of SAP hydrogel as self-sealing agent and its effect on the anti-permeability, mechanics and durability recovery of concrete, and summarized the evaluation method of crack healing and sealing efficiency. In addition, the main challenges and future directions of hydrogel based crack self-sealing technology were also proposed. © 2023 Chinese Ceramic Society. All rights reserved.
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页码：3015 / 3024
页数：9
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