Mechanical and durability properties of green SCC mixed with pozzolan and Ferro-silicomanganese slag as partial aggregate replacement

Articles in Press

Authors

1 Kerman Cement Concrete Research Cenenter, Kerman Cement Industries Group, Kerman, Iran.

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

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

Abstract

Making green self-compacting concrete (SSC) is one of these valuable measures, which along with the development of communities, is a constructive measure to reduce environmental pollution. 10 different SSC 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. 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 SSC. A total of 250 cubic specimens of 10×10cm2 and 60 cubic specimens of 15×15cm2 and 40 cylindrical specimens of 10×20cm2 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, was sampled. From the obtained results, it was concluded that replacing the aggregate with ferro-silicomanganese slag (FSiMnS) provides better compressive strength results up to 18%,and somehow increase in durability test results but 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

Civil Engineering Infrastructures Journal

Articles in Press, Accepted Manuscript
Available Online from 03 December 2024

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History

  • Receive Date: 14 May 2024
  • Revise Date: 25 November 2024
  • Accept Date: 03 December 2024

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