Research on Thermal and Mechanical Properties of Slag Sulfoaluminate Cement Concrete

KANG Xuetong; ZHOU Jian; XU Mingfeng; LI Hui; YU Qinghua; ZHAI Chaoyang; LIN Songtao; ZHONG Xiaolin

doi:10.13204/j.gyjzG21070809

Volume 52 Issue 4

Jul. 2022

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2022 > 52(4): 158-162,185

KANG Xuetong, ZHOU Jian, XU Mingfeng, LI Hui, YU Qinghua, ZHAI Chaoyang, LIN Songtao, ZHONG Xiaolin. Research on Thermal and Mechanical Properties of Slag Sulfoaluminate Cement Concrete[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(4): 158-162,185. doi: 10.13204/j.gyjzG21070809

Citation:

KANG Xuetong, ZHOU Jian, XU Mingfeng, LI Hui, YU Qinghua, ZHAI Chaoyang, LIN Songtao, ZHONG Xiaolin. Research on Thermal and Mechanical Properties of Slag Sulfoaluminate Cement Concrete[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(4): 158-162,185. doi: 10.13204/j.gyjzG21070809

Citation:

KANG Xuetong, ZHOU Jian, XU Mingfeng, LI Hui, YU Qinghua, ZHAI Chaoyang, LIN Songtao, ZHONG Xiaolin. Research on Thermal and Mechanical Properties of Slag Sulfoaluminate Cement Concrete[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(4): 158-162,185. doi: 10.13204/j.gyjzG21070809

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Research on Thermal and Mechanical Properties of Slag Sulfoaluminate Cement Concrete

doi: 10.13204/j.gyjzG21070809

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

Received Date: 2021-07-08
Available Online: 2022-07-25

Abstract

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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References(19)

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