EFFECT OF INCORPORATION OF CASSAVA PEEL ASH (CPA) IN CEMENT PASTE AND CONCRETE
Abstract
In this research study, Cassava Peel Ash (CPA) which is an agricultural/industrial waste was incorporated in the concrete mixture as a supplementary cementitious material (SCM) thereby encouraging recycling and reuse of solid waste derivatives in construction works to achieve sustainable engineered infrastructural development and eco-efficient environment. The cementitious portion of the concrete mix were partially replaced by varying proportions of CPA ranging from 0-40% while tests were carried out on the concrete samples at fresh and hardened state to derive its workability, setting time, compressive and flexural strength behavior. The concrete’s mechanical strength was determined at hydration periods of 3, 7, 28, 60 and 90 days respectively; to produce a concrete mixture of coarse and fine aggregates, water, cement and CPA. The physiochemical properties of CPA were obtained so as to characterize the elemental chemical composition the admixture and the results indicated a good pozzolanic behavior with Al2O3 + SiO2 + Fe2O3 summing to 81.83%. the mechanical strength test results indicate rise in percentage difference as CPA replacement ratio increased from 5-40% with a score of 7.2 – 46.2% and 18.18-86-19% for the compressive and flexural strength property respectively. Similarly, the workability and setting time test result showed increase in percentage difference as CPA replacement ratio increased from 5-40% with a score of 17.08-54.2%, 5.6-81.14% and 0.84-28.57% for slump, initial and final setting time properties respectively. Furthermore, the concrete’s mechanical properties were observed to increase generally with relative increase in the concrete hydration period. The Pozzolanic Activity-Index (PAI) of CPA is 75.8% which is an indication that it has high pozzolanic properties. From the results, the optimum combination level of 5-10% replacement of the cement by CPA can be used to produce a better and more desirable concrete. Correlation analysis were deployed to statistically assess the mechanical properties response with the control results; the analysis results showed a consistent decrease in the correlation value from 0.9988-0.9678 and 0.9942.0.97594 for 5-40% replacement of the cement by CPA for the compressive and flexural strength respectively.Keywords:
Cassava Peel Ash, Cement Paste, Concrete, IncorporationPublished
2023-10-31
How to Cite
BABA B., MUHAMMAD S., BUKATA Y. G., & SAGIR A. Y. (2023). EFFECT OF INCORPORATION OF CASSAVA PEEL ASH (CPA) IN CEMENT PASTE AND CONCRETE. International Journal of Earth Design and Innovation Research, 2(1). Retrieved from https://mediterraneanpublications.com/mejedir/article/view/290
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Copyright (c) 2023 BABA B., MUHAMMAD S., BUKATA Y. G., SAGIR A. Y.

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.