地聚物凝结硬化特性影响因素研究综述

doi:10.16552/j.cnki.issn1001-1625.20241118.003

摘要/Abstract

摘要： 地聚物是一类由活性硅铝酸盐前驱体经化学激发反应形成的无机胶凝材料,具有力学性能优异、耐久性好等优点。这类新型胶凝材料的开发和应用有利于传统水泥工业低碳化发展。但在地聚物制备过程中,经常出现新拌混凝土凝结时间难以控制的问题,限制了其推广与应用。本文总结了影响地聚物凝结硬化的众多因素,如硅铝质原材料的物理化学性质,激发剂的种类、浓度和模数,水含量等内在因素,以及养护温度和外加剂等外在因素,详细讨论了各因素对地聚物凝结硬化特性的影响规律及作用机制,并指出了地聚物凝结硬化未来的研究方向。

关键词: 地聚物, 凝结硬化特性, 作用机理, 组成因素, 反应温度

Abstract: Geopolymers are a family of inorganic cementitious materials formed by chemical excitation reaction of active aluminosilicate precursors, which have the advantages of excellent mechanical properties, good durability and so on. The development and application of this kind of new cementitious materials is conducive to the low-carbonation development of traditional cement industry. However, in the process of preparation of geopolymers, it is difficult to control the setting time of freshly mixed concrete, which greatly limits the adoption and application. This paper summarizes various factors that affect the setting and hardening behavior of geopolymers, such as the physical and chemical properties of aluminosilicate raw materials, the types, concentration and modulus of activators, water content and other internal factors, as well as the external factors such as curing temperature and chemical additives. The influence law and mechanism of each factor on the setting and hardening characteristics of geopolymers are discussed in detail, and the future research perspectives towards setting and hardening of geopolymers are also given on the basis of this comprehensive review.

Key words: geopolymer, setting and hardening characteristics, influence mechanism, compositional factor, reaction temperature

中图分类号:

TU526

李超, 李志康, 李新宇, 黄永亮, 王武, 罗正东, 李文佳, 许福. 地聚物凝结硬化特性影响因素研究综述[J]. 硅酸盐通报, 2025, 44(2): 501-514.

LI Chao, LI Zhikang, LI Xinyu, HUANG Yongliang, WANG Wu, LUO Zhengdong, LI Wenjia, XU Fu. Review on Factors Affecting Setting and Hardening Characteristics of Geopolymers[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(2): 501-514.

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