Journal of Shandong University(Engineering Science) ›› 2025, Vol. 55 ›› Issue (2): 97-105.doi: 10.6040/j.issn.1672-3961.0.2024.010

• Civil Engineering • Previous Articles     Next Articles

Properties of carbonized steel slag fine aggregate concrete

XUE Gang1,2,3, WU Song1*, DONG Wei1,2   

  1. XUE Gang1, 2, 3, WU Song1*, DONG Wei1, 2(1. College of Civil Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
    2. Inner Mongolia Autonomous Region Key Laboratory of Civil Engineering Safety and Durability, Baotou 014010, Inner Mongolia, China;
    3. Inner Mongolia Autonomous Region Building Structure Disaster Prevention and Mitigation Engineering Technology Research Center, Baotou 014010, Inner Mongolia, China
  • Published:2025-04-15

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Abstract: In order to study the applicability of the carbon steel slag fine aggregate in concrete and mechanical properties of differences, physical and chemical tests were conducted on carbonated steel slag. Based on this, ordinary concrete and fine aggregate concrete with 10%, 20% and 30% carbonized steel slag were prepared. The influence law of the replacement rate of steel carbide slag on the mechanical properties and volume stability of concrete was studied. Research had found that with the addition of fine aggregate of carbonized steel slag from 10% to 30%, the cube compressive strength, splitting tensile strength, elastic modulus, and peak strain of carbonized steel slag aggregate concrete gradually increased. Axis of normal concrete compressive strength and cube compressive strength ratio was 0.76-0.82, and that of carbonized steel slag concrete was 0.85-0.87. At the same time, the constitutive relationship models applicable to carbonated steel slag fine aggregate concrete were studied and summarized, and the relationship between model fitting parameters and mechanical properties was analyzed, In order to provide theoretical support for the application and popularization of steel slag concrete.

Key words: carbonized steel slag, concrete, fine aggregate, mechanical property, constitutive relation

CLC Number: 

  • TU528
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