喷射混凝土孔结构及其对耐久性影响的研究进展

摘要/Abstract

摘要： 喷射混凝土是一种广泛应用于建筑和土木工程领域的材料,孔结构对喷射混凝土的宏观性能与耐久性有着重要影响。本文对孔结构模型进行了总结,阐述和比较了孔结构的测试方法,系统分析了养护温度、外加剂、水胶比、矿物掺合料、泵送压力和时间等因素对喷射混凝土孔结构的影响,深入探讨了孔结构对喷射混凝土抗冻性能、抗渗性能、抗碳化性能及抗化学侵蚀性能的影响,并对喷射混凝土孔结构未来的研究方向提出了展望。

关键词: 喷射混凝土, 孔结构, 孔结构模型, 测试方法, 影响因素, 耐久性

Abstract: Shotcrete is a widely used material in the fields of construction and civil engineering, and its pore structure has a significant impact on the macroscopic performance and durability of shotcrete. This article summarizes the pore structure models, and elaborates on and compares the testing methods for pore structure. A systematic analysis is conducted on the factors affecting the pore structure of shotcrete, including curing temperature, admixtures, water binder ratio, mineral admixtures, pumping pressure, and time. In depth exploration is conducted on the influence of pore structure on the frost resistance, impermeability, carbonation resistance, and chemical erosion resistance of shotcrete, and prospects are proposed for future research on pore structure of shotcrete.

Key words: shotcrete, pore structure, pore structure model, testing method, influencing factor, durability

中图分类号:

TU528.53

高明爽, 潘慧敏, 赵庆新. 喷射混凝土孔结构及其对耐久性影响的研究进展[J]. 硅酸盐通报, 2024, 43(11): 3895-3910.

GAO Mingshuang, PAN Huimin, ZHAO Qingxin. Research Progress on Pore Structure of Shotcrete and Its Influence on Durability[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(11): 3895-3910.

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