矿渣硫铝酸盐水泥混凝土热学与力学性能研究

康雪彤; 周健; 徐名凤; 李辉; 喻庆华; 翟朝阳; 林松涛; 仲晓林

doi:10.13204/j.gyjzG21070809

矿渣硫铝酸盐水泥混凝土热学与力学性能研究

doi: 10.13204/j.gyjzG21070809

1. 河北工业大学土木与交通学院, 天津 300401;
2. 嘉华特种水泥股份有限公司, 四川乐山 614003;
3. 唐山北极熊建材有限公司, 河北唐山 063705;
4. 中冶建筑研究总院有限公司, 北京 100088

基金项目:

国家自然科学基金项目(51702082)。

详细信息

作者简介:
康雪彤,女,1994年出生,硕士研究生。

通讯作者:
周健,博士,教授,zhoujian@hebut.edu.cn。

计量
- 文章访问数: 290
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- 被引次数: 0
出版历程
- 收稿日期: 2021-07-08
- 网络出版日期: 2022-07-25

Research on Thermal and Mechanical Properties of Slag Sulfoaluminate Cement Concrete

1. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China;
2. Jiahua Special Cement Co., Ltd., Leshan 614003, China;
3. Tangshan Polar Bear Building Material Co., Ltd., Tangshan 063705, China;
4. Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China

摘要

摘要: 通过等温量热、绝热温升和抗压强度试验对比分析了矿渣硫铝酸盐水泥(S-SAC)与普通硅酸盐水泥(OPC)的热学和力学性能差异。结果表明:7 d时S-SAC水泥水化热总量比OPC水泥的低33.5%,其28 d混凝土抗压强度比OPC混凝土的高36.4%;不同水胶比下,S-SAC混凝土比OPC混凝土后期强度增幅高50%;同一配比下S-SAC混凝土绝热温升是OPC混凝土的49%;双掺粉煤灰和粒化高炉矿渣粉可在保持S-SAC混凝土早期强度的同时,提高后期强度增长率;粉煤灰掺量越高,S-SAC混凝土放热速度越慢,绝热温升越低。与OPC混凝土相比,S-SAC混凝土具有低热高后期强度增长率的优点。
- 矿渣硫铝酸盐水泥 /
- 大体积混凝土 /
- 水化放热规律 /
- 绝热温升 /
- 力学性能
Abstract: The thermal and mechanical properties of slag sulfoaluminate cement (S-SAC) and ordinary Portland cement (OPC) were compared and analyzed by isothermal calorimetry, adiabatic temperature rise and compressive strength tests. The results showed that the total hydration heat of S-SAC cement was 33.5% lower than that of OPC cement at 7 days, and the 28 days compressive strength of S-SAC concrete was 36.4% higher than that of OPC concrete. With different water-binder ratios, the later strength of S-SAC concrete was 50% higher than that of OPC concrete, and the adiabatic temperature rise of S-SAC concrete was 49% of that of OPC concrete at the same ratio. Adding fly ash and granulated blast furnace slag powder could not only maintain the early strength of S-SAC concrete, but also increase the growth rate of later strength; the higher the content of fly ash, the slower the heat release rate of S-SAC concrete, and the lower the adiabatic temperature rise. Compared with OPC concrete, S-SAC concrete showed the advantages of low heat and high strength growth rate in the later stage.
- slag sulfoaluminate cement /
- mass concrete /
- law of hydration heat /
- adiabatic temperature rise /
- mechanical properties

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