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Multiresponse Optimization of Postfire Residual Properties of Fiber-Reinforced High-Performance Concrete
AbstractThis paper presents the results of an extensive experimental program undertaken to optimize compressive strength, ultrasonic pulse velocity (UPV), and abrasion wear of heated high-performance concrete using Taguhi method and the utility concept. The design of experiments (DOEs) was first carried out by Taguchi method using a standard L 25(35) orthogonal array of three factors with five materials parameters levels. The factors considered in this context of HPC were: fiber volume fracture, age time, and postheat temperature. The prism specimens 60×60×300 mm with various volume fractions were casted, left for different age times (7, 28, and 56 day), then heated up to 200, 400, and 800°C for a time of 3 h; they were subsequently tested in the cooled conditions. Based on the experimental results, the materials parameter responses were analyzed and the level of importance of the input parameters on the measurement values was determined using ANOVA method. The results show that the mix parameters change their influence on the residual properties of high-performance concrete (HPC) with the change in temperature of exposure.
Multiresponse Optimization of Postfire Residual Properties of Fiber-Reinforced High-Performance Concrete
AbstractThis paper presents the results of an extensive experimental program undertaken to optimize compressive strength, ultrasonic pulse velocity (UPV), and abrasion wear of heated high-performance concrete using Taguhi method and the utility concept. The design of experiments (DOEs) was first carried out by Taguchi method using a standard L 25(35) orthogonal array of three factors with five materials parameters levels. The factors considered in this context of HPC were: fiber volume fracture, age time, and postheat temperature. The prism specimens 60×60×300 mm with various volume fractions were casted, left for different age times (7, 28, and 56 day), then heated up to 200, 400, and 800°C for a time of 3 h; they were subsequently tested in the cooled conditions. Based on the experimental results, the materials parameter responses were analyzed and the level of importance of the input parameters on the measurement values was determined using ANOVA method. The results show that the mix parameters change their influence on the residual properties of high-performance concrete (HPC) with the change in temperature of exposure.
Multiresponse Optimization of Postfire Residual Properties of Fiber-Reinforced High-Performance Concrete
Zoalfakar, S. H (author) / Shaheen, Y. B / Elsissy, Mona A / Hamada, A. A
2016
Article (Journal)
English
BKL:
56.45
Baustoffkunde
Local classification TIB:
535/6520/6525/xxxx
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