Comparative Regression Analysis of Concrete Strength Influenced by Magnetized and Tap Water Using the Box-Cox Transformation Technique
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Abstract
Concrete plays a crucial role in modern infrastructure, particularly due to its durability and versatility. However, enhancing its mechanical performance—especially compressive strength—remains a key research focus. This study aims to investigate the effect of tap water magnetized by a neodymium magnetic field with an intensity of 1,500–2,900 Gauss on the compressive strength of concrete. Concrete specimens were divided into two groups: a control group cured with ordinary tap water and an experimental group cured with magnetized tap water. Compressive strength tests were conducted at curing ages of 3 5 7 10 14 21 and 28 days. The results showed that concrete cured with magnetized water consistently exhibited higher compressive strength than the control group, with average increases of 23% and 19% observed on days 21 and 28, respectively. Data were analyzed using linear regression models combined with Box-Cox transformation in Minitab software, yielding high R-squared values and demonstrating strong predictive accuracy. This research proposes a novel and efficient approach for enhancing concrete properties without incurring additional costs or environmental burden. The findings highlight the potential of magnetized water as a sustainable and cost-effective method for improving material performance in modern construction.
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References
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