PERFORMANCE EVALUATION OF CEMENT PARTIALLY REPLACED WITH A BLEND OF PLANTAIN AND BANAPERFORMANCE EVALUATION OF CEMENT PARTIALLY REPLACED WITH A BLEND OF PLANTAIN AND BANANA PEEL ASH IN CONCRETE.NA PEEL ASH IN CONCRETE.
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Abstract
This study aims to investigate the feasibility of using a blend of plantain and banana peel ash (PBPA) as a partial replacement for cement in concrete. The study seeks to evaluate the effects of PBPA on the workability, compressive strength, and flexural strength of concrete, with a view to reducing the environmental impact of concrete production.
The workability of the concrete mixtures was evaluated using the slump test, in accordance with ASTM C143/C143M-15a. The compressive strength was determined using the standard compressive strength test, as outlined in BS EN 12390-3:2019. The flexural strength was assessed using the modulus of rupture test, in line with ASTM C78/C78M-18. These tests enabled a comprehensive evaluation of the effects of PBPA on the mechanical properties of concrete. The results showed that 0% replacement of cement with PBPA and coarse aggregate produced a slump value of 40mm while 5 to 15% replacement produced slump values of 39.7mm,42.7mm, 51.3mm respectively. From the rate of decrease, this indicated that
increasing the PBPA content decreases the workability of the mix , while the compressive and flexural strengths were reduced by up to 20% at 28 days. However, the concrete mixtures with up to 10% PBPA replacement still met the strength requirements for grade M20 concrete. The findings suggest that PBPA can be used as a supplementary cementitious material to reduce the environmental impact of concrete production.
The workability of the concrete mixtures was evaluated using the slump test, in accordance with ASTM C143/C143M-15a. The compressive strength was determined using the standard compressive strength test, as outlined in BS EN 12390-3:2019. The flexural strength was assessed using the modulus of rupture test, in line with ASTM C78/C78M-18. These tests enabled a comprehensive evaluation of the effects of PBPA on the mechanical properties of concrete. The results showed that 0% replacement of cement with PBPA and coarse aggregate produced a slump value of 40mm while 5 to 15% replacement produced slump values of 39.7mm,42.7mm, 51.3mm respectively. From the rate of decrease, this indicated that
increasing the PBPA content decreases the workability of the mix , while the compressive and flexural strengths were reduced by up to 20% at 28 days. However, the concrete mixtures with up to 10% PBPA replacement still met the strength requirements for grade M20 concrete. The findings suggest that PBPA can be used as a supplementary cementitious material to reduce the environmental impact of concrete production.
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