Brief
Discover how palm leaves ash improves concrete strength and workability when mixed with seawater, achieving up to an 84.188% increase in compressive strength.
Abstract
This study delves into the innovative use of palm leaves ash as a partial replacement for cement in concrete, specifically examining its effects when seawater is used both as mixing and curing water. By replacing a portion of cement with palm leaves ash, the research aims to address the challenges posed by seawater’s typically detrimental impact on concrete strength and durability.
A series of tests, including slump tests for workability and compressive strength tests at intervals of 7, 28, and 60 days, were conducted to evaluate the performance of the modified concrete. Remarkably, the study found that substituting 5% of cement with palm leaves ash and using seawater as the mixing water resulted in an 84.188% increase in ultimate compressive strength after 28 days of curing in tap water, compared to conventional concrete mixed with seawater. Additionally, this modified concrete maintained reasonable workability, making it a practical solution for construction in marine environments.
When curing was performed using seawater, a partial replacement of 2.5% of cement with palm leaves ash led to a 70.75% increase in compressive strength after 28 days, compared to normal concrete mixed with seawater. These findings suggest that incorporating palm leaves ash not only mitigates the adverse effects of seawater but also significantly enhances the concrete’s structural integrity.
This research opens new avenues for sustainable cemet alternatives, leveraging agricultural waste to improve concrete properties in challenging environments. The use of palm leaves ash presents a promising alternative for regions where seawater is the only available mixing or curing water, contributing to both environmental sustainability and the advancement of civil engineering materials.
Highlight
- the study found that substituting 5% of cement with palm leaves ash and using seawater as the mixing water resulted in an 84.188% increase in ultimate compressive strer, a partial replacement of 2.5% of cement with palm leaves ash led to a 70.75% increase in compressive strength after 28 days, compared to normal concrete mixed with seawater.
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