High contents of steel slag in the road concrete: Hydration mechanism, mechanical property and durability performance

In this paper, steel slag (SS) was used as the cementitious material with ground granulated blast-furnace slag (GGBS) and desulfurized gypsum (DG) and recycled as coarse aggregate in concrete. The optimal mix ratio of cementitious material was 20% SS, 62% GGBS and 18% DG. The hydration products were AFt and C-S-H gel. When SS was instead of gravel for 50%, the compressive strength was increased by 22.71%. The volume shrinkage at 90 days and 28 d-carbonization depth decreased by 54.2% and 20.33% respectively. The chloride ion penetration resistance reached Q-V and the abrasion resistance was improved by nearly 19.58%.

• Record URL:
  • https://doi.org/10.1016/j.conbuildmat.2023.132703
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0950061823024194
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2023 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Sun, Xuesong
  • Li, Yanjun
  • Wei, Xinlei
  • Yu, Jianwen
  • Wang, Mingxing
• Publication Date: 2023-10-12

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 132703
• Serial:
  • Construction and Building Materials
  • Volume: 400
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Concrete; Durability; Hydration; Mechanical properties; Slag coarse aggregates
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01891843
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 29 2023 4:46PM