混凝土早强修补材料基准水泥配合比优化研究

硅酸盐通报 ›› 2025, Vol. 44 ›› Issue (3): 802-810.

混凝土早强修补材料基准水泥配合比优化研究

李祖仲¹, 毛浩天¹, 王亮¹, 吴志宽¹, 文硕¹, 刘卫东²

1.长安大学材料科学与工程学院,西安 710061;
2.广西交科集团有限公司,广西道路结构与材料重点实验室,南宁 530007

收稿日期:2024-10-11 修订日期:2024-12-06 出版日期:2025-03-15 发布日期:2025-04-01
通信作者: 刘卫东,博士,高级工程师。E-mail:liuwd2016@126.com
作者简介:李祖仲(1973—),男,博士,副教授。主要从事道路工程的研究。E-mail:zuzhongli@126.com
基金资助:
陕西省科技创新团队(2024RS-CXTD-56);长安大学大学生创新创业训练资助项目(S202410710362,S202410710096)

Optimization of Standard Cement Mix Ratio for Concrete Early-Strength Repair Materials

LI Zuzhong¹, MAO Haotian¹, WANG Liang¹, WU Zhikuan¹, WEN Shuo¹, LIU Weidong²

1. School of Materials Science and Engineering, Chang'an University, Xi'an 710061, China;
2. Guangxi Key Laboratory of Road Structure and Materials, Guangxi Transportation Science and Technology Co., Ltd., Nanning 530007, China

Received:2024-10-11 Revised:2024-12-06 Published:2025-03-15 Online:2025-04-01

摘要/Abstract

摘要： 针对在役水泥混凝土构造物的早期病害问题,开展早强修补材料组成研究具有重要的现实意义。本文分别采用硫铝酸盐水泥(SAC)、铁铝酸盐水泥(FAC)与普通硅酸盐水泥(OPC)与进行复配,分析OPC对复配水泥凝结时间及抗压强度的影响,以优化早强修补材料基准水泥配合比,并采用水化热、扫描电子显微镜(SEM)、X射线衍射仪(XRD)及热重分析(TG-DTG)测试研究最优配合比下水泥的水化行为及其水化产物的微观形貌、物相组成及热特性。结果表明:与SAC复配时,SAC与OPC的最优质量配合比为3∶2;与FAC复配时,FAC与OPC的最优质量配合比为4∶1。在最优配合比下,OPC的掺入均缩短了复配水泥体系放热速率峰值出现的时间,降低了总放热量。SEM、XRD及TG-DTG分析均说明了加入OPC后,在硅酸盐水化产物氢氧化钙(CH)及OPC中石膏(CS)的协同作用下,硫铝酸钙水化产物铝胶(AH₃)与CH、CS反应,生成钙矾石(AFt),铁铝酸盐水泥中铁铝酸四钙(C₄AF)与CH、CS反应,生成水化铁铝酸钙固溶体(C₃(A,F)·3CS·H₃₂),均推进了复配水泥的水化进程。研究成果为混凝土早强修补水泥基材料试验研究提供了参考。

关键词: 复合材料, 水泥, 修补材料, 水化机理, 微观结构, 配合比

Abstract: Aimed at early disease of cement concrete structure in service, researches on the composition of early-strength repair materials have important practical significance. This paper employed sulfoaluminate cement (SAC), ferrite-aluminate cement (FAC), and ordinary Portland cement (OPC) to prepare the composite standard cements, respectively, and analyzed the effect of OPC on the setting time and strength of the composite cements to optimize the mix ratio of early-strength repair materials. The hydration heat, scanning electron microscopy (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TG-DTG) tests were used to study the hydration behavior, microstructure, phase composition, and thermal characteristics of the hydration products under the optimal max ratio. The results show that the optimal mass mix ratio of SAC to OPC is 3∶2 and the optimal mass mix ratio of FAC to OPC is 4∶1. Under the optimal mix ratio, the addition of OPC shortens the time to the peak value of heat release rate curve of the composite cements and reduces the total heat release. The results of SEM, XRD and TG-DTG analyses all indicate that with the addition of OPC, affected synergistically by Ca(OH)₂(CH) from the silicate hydration product and the gypsum in OPC, aluminum gel (AH₃) from sulfoaluminate cement hydrate product reacts with CH and CS to form ettringite (AFt), and the tetracalcium aluminoferate (C₄AF) in ferrite-aluminate cement reacts with CH and CS to form a calcium ferrite aluminate solid solution (C₃(A,F) 3CS H₃₂), which facilitates the hydration process of the composite cements. The research results provide a reference for further experimental studies on cement-based materials for early-strength repair materials.

Key words: composite material, cement, repair material, hydration mechanism, microstructure, mix ratio

中图分类号:

U414
TU528

李祖仲, 毛浩天, 王亮, 吴志宽, 文硕, 刘卫东. 混凝土早强修补材料基准水泥配合比优化研究[J]. 硅酸盐通报, 2025, 44(3): 802-810.

LI Zuzhong, MAO Haotian, WANG Liang, WU Zhikuan, WEN Shuo, LIU Weidong. Optimization of Standard Cement Mix Ratio for Concrete Early-Strength Repair Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(3): 802-810.

参考文献

[1] 王渊, 徐紫祎, 张进宏, 等. 道路快速修补水泥砂浆组成设计与性能研究[J].公路, 2024, 69(1): 32-40.
WANG Y, XU Z Y, ZHANG J H, et al. Design and performance study of rapid repair cement mortar composition for roads[J].Highway, 2024, 69(1): 32-40 (in Chinese).
[2] ZHANG W, ZHENG Q F, ASHOUR A, et al. Self-healing cement concrete composites for resilient infrastructures: a review[J].Composites Part B: Engineering, 2020, 189: 107892.
[3] FAHIM HUSEIEN G, MIRZA J, ISMAIL M, et al. Geopolymer mortars as sustainable repair material: a comprehensive review[J].Renewable and Sustainable Energy Reviews, 2017, 80: 54-74.
[4] 雷东移, 李明昂, 张鹏, 等. 水泥基材料多尺度抗裂增韧机理研究进展[J].硅酸盐学报, 2023, 51(11): 2876-2889.
LEI D Y, LI M A, ZHANG P, et al. Research progress on multi-scale cracking resistance and toughening mechanisms for cement-based materials[J].Journal of the Chinese Ceramic Society, 2023, 51(11): 2876-2889 (in Chinese).
[5] 李少飞, 魏智强, 乔宏霞, 等. 纳米氧化石墨烯与聚合物改性水泥基复合材料性能研究进展[J/OL].材料导报, 1-22(2024-06-17)[2024-10-5].https://link.cnki.net/urlid/50.1078.tb.20240614.1838.004.
LI S F, WEI Z Q, QIAO H X, et al. Research progress on properties of polymer cement-based composites modified by nano-graphene oxide[J/OL].Materials Reports, 1-22(2024-06-17)[2024-10-5].https://link.cnki.net/urlid/50.1078.tb.20240614.1838.004 (in Chinese).
[6] SONG X M, SONG X F, LIU H, et al. Cement-based repair materials and the interface with concrete substrates: characterization, evaluation and improvement[J].Polymers, 2022, 14(7): 1485.
[7] 沈燕, 张伟, 陈玺, 等. 硫铝酸盐水泥改性的研究进展[J].硅酸盐通报, 2019, 38(3): 683-687.
SHEN Y, ZHANG W, CHEN X, et al. Research progress of sulfoaluminate cement modification[J].Bulletin of the Chinese Ceramic Society, 2019, 38(3): 683-687 (in Chinese).
[8] 杨清, 张秀芝, 刘迪, 等. 普通硅酸盐-硫铝酸盐复合胶凝体系水化性能和机理研究[J].材料导报, 2018, 32(增刊2): 517-521+534.
YANG Q, ZHANG X Z, LIU D, et al. Hydration properties and mechanism of porland cement-sulphoaluminate cement compound system[J].Materials Reports, 2018, 32(supplement 2): 517-521+534 (in Chinese).
[9] 朱茜, 许凯, 廖宜顺, 等. 普通硅酸盐水泥(OPC)-铝硫酸盐(CSA)复合水泥砂浆性能的压电信号监测[J].武汉大学学报(工学版), 2018, 51(5): 418-421+450.
ZHU X, XU K, LIAO Y S, et al. Study of performance monitoring of modified OPC mortar with CSA cement using piezoelectric sensors[J].Engineering Journal of Wuhan University, 2018, 51(5): 418-421+450 (in Chinese).
[10] ZHANG J J, LI G X, YE W T, et al. Effects of ordinary Portland cement on the early properties and hydration of calcium sulfoaluminate cement[J].Construction and Building Materials, 2018, 186: 1144-1153.
[11] 中华人民共和国工业和信息化部. 修补砂浆: JC/T 2381—2016[S].北京: 中国建材工业出版社, 2016.
Ministry of Industry and Information Technology of the People's Republic of China. Repairing mortar: JC/T 2381—2016[S].Beijing: China Architecture & Building Press, 2016 (in Chinese).
[12] 刘志浩. 硅酸盐水泥水化诱导期的作用机理研究[D].广州: 广州大学, 2023.
LIU Z H. Study on the mechanism of hydration induction period of Portland cement[D].Guangzhou: Guangzhou University, 2023 (in Chinese).
[13] 李伟, 王高明, 江芸, 等. 硅酸盐-硫铝酸盐复合水泥体系物理性能及水化机理研究[J].材料导报, 2014, 28(增刊2): 407-409+442.
LI W, WANG G M, JIANG Y, et al. Research of physical properties and hydration mechanism of silicate-sulphoaluminate cement compond sytem[J].Materials Reports, 2014, 28(supplement 2): 407-409+442 (in Chinese).
[14] 李红轩, 齐冬有, 邹德麟, 等. 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 H X, QI D Y, ZOU D L, et al. Comparative study on hydration process of ferroaluminate, sulfoaluminate and Portland cement[J].Bulletin of the Chinese Ceramic Society, 2024, 43(7): 2335-2345 (in Chinese).
[15] 任尊超. 硅酸盐水泥熟料单矿的匹配水化及其调控[D].济南: 济南大学, 2021.
REN Z C. Matching hydration of mineral of portland cement clinker and its adjustmen[D].Jinan: University of Jinan, 2021 (in Chinese).
[16] 章鹏. 硫铝酸盐水泥性能的提升及其应用研究[D].长沙: 湖南大学, 2017.
ZHANG P. Study on improvement of sulphoaluminate cement performance and its application[D].Changsha: Hunan University, 2017 (in Chinese).
[17] BLACK L, BREEN C, YARWOOD J, et al. In situ Raman analysis of hydrating C₃A and C₄AF pastes in presence and absence of sulphate[J].Advances in Applied Ceramics, 2006, 105(4): 209-216.
[18] 杜新宇, 陈潇, 周明凯, 等. 含硫酸盐类固废对硅酸盐水泥水化影响研究[J].硅酸盐通报, 2023, 42(5): 1710-1720.
DU X Y, CHEN X, ZHOU M K, et al. Effects of sulfate-containing solid wastes on hydration of Portland cement[J].Bulletin of the Chinese Ceramic Society, 2023, 42(5): 1710-1720 (in Chinese).
[19] 何小芳, 张亚爽, 李小庆, 等. 水泥水化产物的热分析研究进展[J].硅酸盐通报, 2012, 31(5): 1170-1174.
HE X F, ZHANG Y S, LI X Q, et al. Research progress of thermal analysis in cement hydration[J].Bulletin of the Chinese Ceramic Society, 2012, 31(5): 1170-1174 (in Chinese).