Experimental, genetic algorithm optimization and prediction of mechanical properties of normal and self-compacting concrete with varying ratios of gravel, basalt, and dolomite as coarse aggregate

Alaa Atwa , Youssef Lattif , Osman Hamdy

Abstract

This research investigates the experimental, optimization and prediction of the mechanical properties of normal and self-compacting concrete by examining varying ratios of gravel, basalt, and dolomite aggregates. Each mix consists of one or two different types of aggregates combined in varying proportions to assess their influence on concrete performance. The study aims to evaluate how these different aggregate compositions influence key mechanical properties, including compressive strength, tensile strength and flexural strength. Experimental tests were conducted on concrete samples with varying proportions of the aggregates, followed by a comprehensive analysis of their performance. The results indicate that self-compacting concrete generally outperforms normal concrete in mechanical properties, with dolomite contributing most to compressive strength, basalt excelling in flexural and tensile strengths, and gravel showing the weakest performance across all cases. Genetic Algorithm (GA), were employed to develop predictive models for the mechanical properties of both normal and self-compacting concrete based on the aggregate ratios. The formula developed through GA demonstrates practical applicability in assessing the mechanical properties of both normal and self-compacting concrete, while accounting for varying ratios of gravel, basalt, and dolomite aggregates. This research provides valuable insights for engineers and researchers in the field of construction materials, contributing to the development of more efficient and sustainable concrete solutions.

Key Words

basalt; concrete mechanics properties; dolomite; genetic algorithm; gravel; material performance; normal concrete; self-compacting concrete

Address

Alaa Atwa — Department of Structural Engineering, Menoufia University, Menoufia, Egypt
Youssef Lattif — Department of Structural Engineering, Zagazig University, Zagazig, Egypt
Osman Hamdy — Department of Civil Engineering, Zagazig Higher Institute of Engineering & Technology, Zagazig, Egypt

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