Indian Journal of Science and Technology

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Strength of fly ash concrete made with 10, 15, 20 % and fibre made with 0.1, 0.15, 0.20 % of cement replacement was evaluated in terms of its relation with compressive strength and workability test. Comparison was made between ordinary Portland cement and fly ash concrete and natural fibre. Test results indicated that strength of concrete having cement replacement up to 15% of fly ash and 0.15% of fibre was comparable to the normal concrete mix without fly ash and fibre. The results confirm that fly ash concrete and fibre concrete is a promising material for long term strength development. This was due to the fact that early age strength of fly ash and fibre concrete was lower as compared to strength of control concrete. From the viewpoint of sustainable development, it is a strongly viable solution as a building material in the years ahead.

Keywords

Cement Replacement, Coconut Coir Fibre, Compressive Strength, Fly Ash, Mix Ratio
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