International Journal of Civil Engineering, Construction and Estate Management (IJCECEM)

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Fibre self-compacting concrete performance at high temperatures

Abstract

This paper offers the impact of high temperature with and without fiber of the fresh and hardened properties of Self-Compacting Concrete (SCC). For this study, the experimental approach has four mixtures, and a different amount of fibers have been used: The control mixture was formed without fibres (SCC), the mixture contains 1% polypropylene fibres (SCC-PF), the mixture contains 1% steel fibres (SCCSF), the mixture contains hybrid fibres, 0.5% steel and polypropylene fibres (SCC-SF & PF). The characteristics of the mixtures self-compacting concrete and fiber reinforced self-compacting concrete (FR-SCC) were calculated at 20, 200, 400, 600, and 800 ° C after 28 days. The specimens were heated with electric furnace at a heating rate of 5 ° C / min. The findings show that the compressive strength, tensile strength, and flexural strength enhanced with rising temperatures up to 200 ° C and lessened at temperatures above 200 ° C. A polypropylene fibers reduced and minimized the risk of spalling inside the SCC. In the concrete mixture such as steel fibers and hybrid fibres, the better mechanical characteristics and spalling resistant occur with rising temperature. Of the polypropylene and steel fiber SCC mixtures the weight losses were smaller than without polypropylene and steel fibres. The properties of fresh concretes were typically reduced by fibers.

Citation: Sultan H.K.(2022) Fibre self-compacting concrete performance at high temperatures, International Journal of Civil Engineering, Construction and Estate Management, Vol.10, No.3, pp.60-74

 

Keywords: self-compacting concrete; fiber reinforced self-compacting concrete; high temperature; steel fiber; polypropylene fibres; hybrid fiber

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This work by European American Journals is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 Unported License

 

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Email ID: editor.ijcecem@ea-journals.org
Impact Factor: 8.01
Print ISSN: 2055-6578
Online ISSN: 2055-6586
DOI: https://doi.org/10.37745/ijcecem.14

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