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Effects of Curing Temperature on Rheological Behaviour and Compressive Strength of Cement Containing GGBFS

Authors
  • Chen, Ping1, 2, 3
  • Zhang, Shuming2
  • Yang, Huamei2
  • Hu, Cheng2, 3
  • 1 Guilin University of Technology, College of Civil and Architectural Engineering, Guilin, 541004, China , Guilin (China)
  • 2 Wuhan University of Science and Technology, State Key Laboratory of Refractories and Metallurgy, Wuhan, 430081, China , Wuhan (China)
  • 3 Guang Xi Key Laboratory of New Energy and Building Energy Saving, Guilin, 541004, China , Guilin (China)
Type
Published Article
Journal
Journal of Wuhan University of Technology-Mater. Sci. Ed.
Publisher
Wuhan University of Technology
Publication Date
Oct 08, 2019
Volume
34
Issue
5
Pages
1155–1162
Identifiers
DOI: 10.1007/s11595-019-2172-1
Source
Springer Nature
Keywords
License
Yellow

Abstract

The viscoplasticity and compressive strength of cement with high erosion performance were studied. The influences of curing temperature and content of ground granulated blast furnace slag (GGBFS) on these performances of the medium heat cement (including high iron and low calcium phase) were also investigated. The results indicate that the medium heat cement with high iron phase can maintain better fluidity and low temperature sensitivity than that of ordinary Portland cement at high temperature. GGBFS can play an important role in improving the fluidity and stability of the slurry, and avoid the cement setting and hardening prematurely at high temperatures. The microstructure analysis shows that a large amount of CH with layer shape appear in the slurry. The amount of this gel layer in the slurry increased as the curing temperature elevated. The layer can make the cement stone structure more denser, so that the compressive strength of samples are enhanced in the later stage. When the medium heat cement contains 40% GGBFS, the system has the best flow performance and stability under high temperature environment, and can be applied to mass concrete with excessive internal temperature.

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