Mechanical Performance of Low-Carbon Laterized Concrete Structures Under Service Loading [slag [ggbs] as Binder and Laterite Soil as Fine Aggregate

Student: Oladeji Samuel Omoyeni (Project, 2025)
Department of Civil Engineering
Ekiti State University, Ado-Ekiti, Ekiti State

Abstract

This study investigates the mechanical performance of low-carbon laterized concrete structures under service loading, utilizing Ground Granulated Blast Furnace Slag (GGBS) as a partial cement replacement and laterite soil as a substitute for conventional fine aggregate. The research aims to develop an eco-friendly concrete mix with reduced carbon footprint while maintaining adequate structural integrity for service applications. Experimental mixes were prepared by varying the proportions of GGBS and laterite, and tests were conducted to determine the compressive strength, flexural strength, and density of the concrete specimens. Results showed that partial replacement of cement with GGBS improved long-term strength development, while the incorporation of laterite soil reduced the overall density of the concrete. Optimal performance was observed at moderate replacement levels, where strength and workability were satisfactorily balanced. The findings demonstrate that low-carbon laterized concrete can serve as a sustainable alternative for non-critical structural applications, contributing to greener construction practices and sustainable material utilization in civil engineering.

Keywords
concrete laterite strength performance low-carbon laterized service replacement mechanical structures
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