Investigating Properties of Haydite Concrete by Using Taguchi Method

Abstract

Functionally Graded Material (FGM), as a new concept in material fields, has been a research hotspot in recent years, the application of which can improve the stress state of structures. This paper tried to introduce FGM into the concrete material by investigating the factors which have influence on the concrete FGM. In this study, mix proportion parameters of haydite concrete are analyzed by using the Taguchi’s experiment design methodology. Mixtures are designed in a L16 (45) orthogonal array with three factors, namely, “volume fraction of haydite in total aggregate (H/A)”, “water/cementitious material (W/C) ratio”, and “air entraining agent (AE) content”. The mixtures are extensively tested. The experimental results are analyzed by using the variance analysis (ANOVA). The influence degree of three selected factors to performance indexes is obtained.

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“…Orthogonal array approach is used to study a lot of variables with the limited number of experiments. But, the conclusions from those small‐scale experiments are valid over the entire experimental domain with the available control factors . Chloride attack is more prominent in hydraulic structures, offshore structures with the marine atmosphere.…”