铁铝酸盐、硫铝酸盐和硅酸盐水泥的水化进程对比研究

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (7): 2335-2345.

所属专题：水泥混凝土

铁铝酸盐、硫铝酸盐和硅酸盐水泥的水化进程对比研究

李红轩¹, 齐冬有², 邹德麟³, 王剑锋¹, 汪智勇², 郝禄禄³, 王亚丽¹, 张钰², 刘洪印³

1.北京工业大学材料科学与工程学院,北京 100124;
2.建筑材料工业技术监督研究中心,北京 100124;
3.中核国电漳州能源有限公司,漳州 363300

收稿日期:2023-12-18 修订日期:2024-03-11 出版日期:2024-07-15 发布日期:2024-07-24
通信作者: 王亚丽,博士,教授。E-mail:wangyali1978@bjut.edu.cn
作者简介:李红轩(1998—),男,硕士研究生。主要从事硫铝酸盐水泥的研究。E-mail:15953041745@163.com
基金资助:
北京市科技计划项目(Z221100007522002)

Comparative Study on Hydration Process of Ferroaluminate, Sulfoaluminate and Portland Cement

LI Hongxuan¹, QI Dongyou², ZOU Delin³, WANG Jianfeng¹, WANG Zhiyong², HAO Lulu³, WANG Yali¹, ZHANG Yu², LIU Hongyin³

1. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China;
2. Technicalsupervision & Research Center for China Building Materials, Beijing 100124, China;
3. CNNP Guodian Zhangzhou Energy Co., Ltd., Zhangzhou 363300, China

Received:2023-12-18 Revised:2024-03-11 Online:2024-07-15 Published:2024-07-24

摘要/Abstract

摘要： 铁铝酸盐水泥具有节能、利废、减排优良的工艺性能和环境友好的特点,目前已逐渐引起了国内外学者的研究兴趣。本文通过水化热、XRD、TG-DTG、孔结构分析、SEM等测试手段对比了铁铝酸盐水泥(FAC)、硫铝酸盐水泥(SAC)和硅酸盐水泥(PC)三类不同水泥体系水化过程,分析了三种水泥水化产物和水化机理。结果表明:FAC的1 d强度相比于PC提高了130%,28 d强度超过SAC。FAC和SAC水化放热主要集中在1 d之内,且FAC熟料中的铁相能缩短加速期时间,促进钙矾石的生成。相较于PC和SAC,FAC水化产物不仅含有钙矾石、水化硅酸钙凝胶和铝胶,还含有铁钙矾石和铁胶,其总孔隙率较低,水泥石结构更加致密,强度和耐久性进一步提高。

关键词: 硅酸盐水泥, 硫铝酸盐水泥, 铁铝酸盐水泥, 水化进程, 水化产物, 微观分析

Abstract: Ferroaluminate cement has the characteristics of energy conservation, waste utilization, emission reduction, excellent process performance and environmental friendliness, and has gradually attracted the research interest of scholars at home and abroad. This article compared the hydration processes of three different cement systems, namely ferroaluminate cement (FAC), sulfoaluminate cement (SAC), and Portland cement (PC), through test methods such as hydration heat, XRD, TG-DTG, pore structure analysis, and SEM. The hydration products and mechanisms of three types of cement were analyzed. The results show that the 1 d strength of FAC increases by 130% compared to PC, and the 28 d strength exceedes SAC. The hydration heat release of FAC and SAC is mainly concentrated within 1 d, and the iron phase in FAC clinker can shorten the acceleration period and promote the formation of ettringite. Compared with PC and SAC, FAC hydration products contain not only ettringite, hydrated calcium silicate gel and aluminum glue, but also ettringite and iron glue, with lower total porosity, more compact structure of cement stone, and further improved strength and durability.

Key words: Portland cement, sulfoaluminate cement, ferroaluminate cement, hydration kinetic, hydration product, microscopic analysis

中图分类号:

TQ172.72

李红轩, 齐冬有, 邹德麟, 王剑锋, 汪智勇, 郝禄禄, 王亚丽, 张钰, 刘洪印. 铁铝酸盐、硫铝酸盐和硅酸盐水泥的水化进程对比研究[J]. 硅酸盐通报, 2024, 43(7): 2335-2345.

LI Hongxuan, QI Dongyou, ZOU Delin, WANG Jianfeng, WANG Zhiyong, HAO Lulu, WANG Yali, ZHANG Yu, LIU Hongyin. Comparative Study on Hydration Process of Ferroaluminate, Sulfoaluminate and Portland Cement[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(7): 2335-2345.

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铁铝酸盐、硫铝酸盐和硅酸盐水泥的水化进程对比研究

Comparative Study on Hydration Process of Ferroaluminate, Sulfoaluminate and Portland Cement

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