Fuzzy Logic Model for Prediction of Compressive Strength of Lightweight Concrete Made with Scoria Aggregate and Fly Ash
نویسندگان
چکیده
In this study, a fuzzy logic prediction model for 3, 7, 14 and 28 days compressive strength of lightweight concrete made with scoria aggregate and fly ash under different curing conditions (standard and air curing) was devised. In mixtures containing fly ash, 15% of Portland cement by weight was replaced with fly ash. The specimens were cured in standard curing conditions at temperature 20±2 °C and air curing conditions at temperature 20±2 oC for periods of 3, 7, 14 and 28 days. Compressive strength and ultrasonic pulse velocity (UPV) were determined at the 3, 7, 14 and 28 day curing period. The obtained results with fuzzy logic were compared with the experimental methods and found remarkably close to each other. The results show that the fuzzy logic can be used to predict the compressive strength of lightweight concrete.
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