Abstract
Abstract Many researchers have investigated alternative sources to overcome the problem of conventional building material polluting the environment by the development of green self-compacting concrete in the construction industry. The best alternative solution is to utilise non-conventional construction materials like agricultural wastes. Meanwhile, self-compacting concrete (SCC) is considered as high strength as well as high-performance concrete. The demerits, which include tensile and flexural strength, can be improved by incorporating coir fibres. The utilisation of coir fibres also modifies self-compacting concrete performance after cracking and improves the toughness. This study defines an experimental investigation of the mechanical properties of self-compacting concrete containing coir fibres (CF) with different percentages being 0%, 0.2%, 0.5%, 1%, and 1.5% at 7- and 28-days water curing. The mechanical properties include the slump flow and compressive and tensile strength were examined. The outcomes demonstrated that a required slump flow for self-compacting concrete was achieved using coir fibres up to 1%, beyond which it reduced the slump significantly. The length of fibre and proportion of fibres directly affected the workability. The compressive strength was 10% to 15% enhanced with the incorporation of coir fibres up to 0.5%; after that, the strength was slightly reduced, and tensile strength was 30% to 50% improved compared to conventional self-compacting concrete up to 1% of coir fibres incorporation in the SCC mix, after which it rapidly reduced.
Highlights
Many scholars wish to introduce new and innovative systems that will fulfil future demands for construction
The hardened properties of compressive and tensile strength of the selfcompacting concrete (SCC) were analysed for samples containing coir fibres at different curing regimes
Slump Flow of SCC-CF The slump flow outcomes for SCC containing coir fibres are presented in Figures 7 and 8
Summary
Many scholars wish to introduce new and innovative systems that will fulfil future demands for construction. The conventional systems adopted in the construction industry, including reinforced concrete, load-bearing structures, brickwork, timber work, and many others, do not satisfy the current demand This moves development towards new innovative construction system, including IBS, which includes various methods and benefits that will be highly preferable in the future [1,2,3,4]. The generation of agricultural waste increases with respect to time, creating environmental and disposal problems [11,12] To overcome these issues, agricultural waste such as coir fibre can be utilised in SCC to enhance its tensile and flexural strength. Agricultural waste such as coir fibre can be utilised in SCC to enhance its tensile and flexural strength This has the potential to decrease the emission of CO2, environmental pollution, disposal of waste, and increase resistance to stresses at a high level, making the concrete more ductile. The compressive and the tensile strength as well as the slump flow were investigated to analyse the behaviour of SCC when coir fibres are introduced
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