Strength of Binary Blended Cement Composites Containing Plantain Leaf Ash

Abstract

Abstract:The strength characteristics of binary blended cement composites made with Ordinary Portland Cement (OPC) and Plantain Leaf Ash (PLA) were investigated in this work. 105 concrete cubes and 105 sandcrete cubes of 150mm x 150mm x 150mm were produced at percentage OPC replacement with PLA of 5%, 10%, 15%, 20%, and 25% and crushed to obtain their compressive strengths at 3, 7, 14, 21, 28, 50, and 90 days of curing. The 3-21 day compressive strength values of OPC-PLA binary blended cement concrete were found to be much lower than the control values; the 28-50 day strengths were comparable to the control values; while the 90 day strengths were higher than the control values especially at 5-10% replacements of OPC with PLA, ranging from 24.40N/mm 2 for 10% replacement of OPC to 25.80N/mm 2 for 5% replacement of OPC compared with the control value of 23.60N/mm 2 . This same trend was observed for OPC-PLA binary blended cement sandcrete. The variation in density was not significant. Mathematical models were developed for predicting compressive strengths of OPC-PLA binary blended cement composites using polynomial regression analysis.The model values of compressive strengths obtained from the various model equations were found to be either exactly the same as those of the equivalent laboratory values or very close to them, with differences ranging from 0 to 0.6N/mm 2 . Thus, OPC-PLA binary blended cement composites could be good for civil engineering works and the developed model equations can be used to estimate their strengths for various curing ages and percentage OPC replacement with PLA.

Strength behavior of clayey soil stabilized with saw dust ash

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A Comprehensive Exploration on Sustainable Supplementary Cementitious Materials Derived from Agro Wastes

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Strength Evaluation of Sustainable Concrete with Partial Replacement of Cement by Combination of Banana Leaf Powder and Cattle Bone Powder

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