Mechanical and Durability Properties of Green SCC Mixed with Pozzolan and Ferro-Silicomanganese Slag as Partial Aggregate Replacement

Document Type : Research Papers

Authors

1 M.Sc., Kerman Cement Concrete Research Center, Kerman Cement Industries Group, Kerman, Iran.

2 Professor, Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran.

3 Assistant Professor, Department of Geology, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran.

Abstract

Making green Self-Compacting Concrete (SCC) is one of the valuable measures that, along with the development of communities, helps to reduce environmental pollution. 10 different SCC mix designs were designed and fabricated using Khash and Sirjan pozzolans, 25, 50, 75, and 100% replacement of aggregate with dimensions in the range of 4.75-9.5 mm with Ferro-Silicomanganese Slag (FSiMnS). The water-to-cement ratio is 0.36 for all SCC mixes. Slump flow, V-funnel, and l-box tests were performed on fresh concrete to investigate the fresh properties and rheology of green SCC. A total of 250 cubic specimens of 10 × 10 cm2, 60 cubic specimens of 15 × 15 cm2, and 40 cylindrical specimens of 10 × 20 cm2 for testing compressive strength, Rapid Chloride Permeability Test (RCPT), surface electrical resistance, water penetration depth under pressure, and half-hour water absorption to evaluate the durability properties of concrete, were sampled. From the obtained results, it was concluded that replacing the aggregate with FSiMnS provides better compressive strength results up to 18%, and somehow increase in durability test results, but has adverse effects on the workability parameters of SCC. Sirjan pozzolan has shown better performance than Khash pozzolan in all durability tests, while Khash pozzolan has higher initial compressive strength.

Keywords

References

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Civil Engineering Infrastructures Journal
Volume 59, Issue 1
June 2026
Pages 173-188

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History

  • Receive Date: 14 May 2024
  • Revise Date: 12 October 2024
  • Accept Date: 03 November 2024

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