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Optimizing and Predicting the Performance of Lateritic Concrete Enhanced with PCE-Superplasticizers Using Response Surface Methodology
Subject area: Science,Engineering and Technology · Area of research: Concrete, Lateritic Concrete, Optimization, RSM
DOI: https://doi.org/10.64388/IREV9I6-1713071
Abstract
This research employed response surface methodology (RSM) to optimise lateritic concrete with the inclusion of HYDROPLAST 240GP, a PCE superplasticizer, to improve workability and compressive strength while reducing the deleterious impacts of the clay content in laterite. Experimental mixtures with different laterite replacement levels (7.5?30%) of sand fine aggregates and superplasticizer dosages (0.8?1.5%) were assessed were used. compressive strength tests at 7 and 28 days, and microstructural analyses employing SEM, EDX, and XRD techniques were done. The combination of 7.5% laterite replacement and 1.15% HYDROPLAST 240GP resulted in the highest 28-day compressive strength of 22.6 N/mm?, in contrast to 22.09 N/mm? observed in the control sample. SEM, EDX, and XRD analyses showed denser microstructure characterised by reduced porosity, increased calcium silicate hydrate formation, improved hydration products, and a uniform distribution of elements in the optimised mix. The RSM model showed that enhancing laterite replacement at 13?15% with a superplasticizer dosage of approximately 1.15% improved strength and gave good workability. The findings indicate that HYDROPLAST 240GP and RSM effectively optimised lateritic concrete mix designs, providing a cost-efficient and sustainable alternative appropriate for laterite-rich areas.
Keywords
Lateritic concrete, Response Surface Methodology, HYDROPLAST 240GP, Compressive strength
How to cite this paper
@article{1713071,
author = {Victor Omosekhoa Ezekiel, Emmanuel Eberechukwu Ndububa, Olumide W. Oseni, Obayehagweme Ezekiel},
title = {Optimizing and Predicting the Performance of Lateritic Concrete Enhanced with PCE-Superplasticizers Using Response Surface Methodology},
journal = {Iconic Research And Engineering Journals},
year = {2025},
volume = {9},
number = {6},
pages = {1873-1885},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1713071.pdf},
abstract = {This research employed response surface methodology (RSM) to optimise lateritic concrete with the inclusion of HYDROPLAST 240GP, a PCE superplasticizer, to improve workability and compressive strength while reducing the deleterious impacts of the clay content in laterite. Experimental mixtures with different laterite replacement levels (7.5?30%) of sand fine aggregates and superplasticizer dosages (0.8?1.5%) were assessed were used. compressive strength tests at 7 and 28 days, and microstructural analyses employing SEM, EDX, and XRD techniques were done. The combination of 7.5% laterite replacement and 1.15% HYDROPLAST 240GP resulted in the highest 28-day compressive strength of 22.6 N/mm?, in contrast to 22.09 N/mm? observed in the control sample. SEM, EDX, and XRD analyses showed denser microstructure characterised by reduced porosity, increased calcium silicate hydrate formation, improved hydration products, and a uniform distribution of elements in the optimised mix. The RSM model showed that enhancing laterite replacement at 13?15% with a superplasticizer dosage of approximately 1.15% improved strength and gave good workability. The findings indicate that HYDROPLAST 240GP and RSM effectively optimised lateritic concrete mix designs, providing a cost-efficient and sustainable alternative appropriate for laterite-rich areas.},
keywords = {Lateritic concrete, Response Surface Methodology, HYDROPLAST 240GP, Compressive strength},
month = {December},
doi = {https://doi.org/10.64388/IREV9I6-1713071}
}