IIARD International Institute of Academic Research and Development

International Journal of Engineering and Modern Technology (IJEMT )

E-ISSN 2504-8848
P-ISSN 2695-2149
VOL. 8 NO. 3 2022
DOI: https://doi.org/10.56201/ijemt.v8.no3.2022.pg64.78

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Structural Integrity of RPPA and URPPA Concretes in the Built Environments

Saleh M. Abdullahi, Sanni J. Enewo, Adamu Abdullahi, Ahmed T. Ashiru, Ahmed Isa Makun and Ohagoro O. Cynthia

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Abstract

Plantain peels are considered to be used in various ways especially as admixtures which propagates better concrete qualities and for soil stabilization. Plantain is botanically known as Musa paradisiaca, with about 68 species in global existence. Its origin can be traced back to South-Eastern Asia and are currently grown via irrigation processes and naturally grown in swampy and mangrove zones of the globe. This R&D aimed at structurally evaluating the applications of both “Ripe Plantain Peel Ash (RPPA) and “Unripe Ripe Plantain Peel Ash” (URPPA) in concrete for the development of the built environments. The cardinal objective of this research is to determine the effectiveness of the use of PPA as supplements in OPC and to generally appraise the efficacy of PPA concrete in construction processes. Methodology employed are based on BS code of practice, ASTM, SON-NIS 444-1 and German standards DN 51043. However, major chemical and physical characteristics as evaluated for RPPA and URPPA in the combined form of SiO 2 + Al 2 O 3 + Fe2O3 are 50.52 and 70.7, while LOI are 2.49 and 2.17, with specific gravity as 2.61 and 2.62, so also moisture contents are 77.96% and 79.86% respectively. Similarly, the average density and the compressive strength of the RPPA concretes at 56 days period of curing is 2448.01 (kg/m 3 ) and 34.22 (N/mm 2 ) at 5% with 2390.00 (kg/m 3 ) and 26.14 (N/mm 2 ) at 25% while for URPPA is 2449.00 (kg/m 3 ) and 34.27 (N/mm 2 ) with 2394.10 (kg/m 3 ) and 26.58 (N/mm 2 ) respectively. In conclusion, URPPA has proven to be effective supplementary material to be used for partial replacement in cement for structural development when compared to URPPA. RPPA and URPPA is recommended for use when late strength growth is required in concretes with little water requirement.

keywords:

OPC, PPA, Specimen, Concrete, Workability, Density & Compressive strength.

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