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Multi-Response Optimization of Lightweight Concrete Performance

Mariam Farouk Ghazy, Metwally Abd Allah Abd Elaty, Mohamed Fattouh Abd-El Hameed

Abstract


This paper presents an optimization of lightweight concrete by Grey-Taguchi method. A study on physical, mechanical and durability properties were conducted. A total of sixteen experimental runs based on Taguchi method’s orthogonal arrays were performed to determine the best factor level condition. Four control factors, lightweight fine aggregate type and content; light weight coarse aggregate content and foam agent content were selected to be the quality targets.  In this study, the lightweight concrete are optimized with consideration of multiple-performance characteristics. By analyzing the grey relational grade, it is observed that the lightweight coarse aggregate content and lightweight fine aggregate content have more effect on responses rather than other control factors (lightweight fine aggregate type and foam agent content). It is clearly shown that the above performance characteristics in process lightweight concrete can be improved effectively through this approach. Finally, confirmation tests were conducted to validate the experimental results.

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References


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