Evaluating the Compressive Strength and Quality Control of Locally Sourced Concrete Mix Designs in Benghazi, Libya
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Compressive Strength, Quality Control, Statistical Analysis, Mix Design, Local Materials
Abstract
This study investigates the quality control of concrete mix designs (C25, C30, and C35) produced using local materials in Benghazi, Libya, with a focus on compressive strength. The data collected over a seven-month period were analyzed statistically, and the results showed that the compressive strength of all mixes follows a normal distribution, ensuring the applicability of standard statistical methods for quality control. The analysis included a 95% confidence interval (CI), confirming the precision and reliability of the results in comparison to the ACI 214R-11 guidelines. Additionally, the study explored the impact of the additive Sikament R 2002 on mix performance, demonstrating that the concrete mixes consistently met or exceeded the required compressive strength values across various confidence intervals. These findings confirm that concrete mixes made from local materials in Benghazi meet international quality standards and provide a solid statistical foundation for future research in concrete quality control in Libya.
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