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Optimization of high-strength self-consolidating concrete mix design using an improved Taguchi optimization method

机译：改进的田口优化方法优化高强自密实混凝土配合比设计

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Since many parameters are involved in the concrete mix design, finding the optimal mixing design has always been a problem for concrete engineers. In this research, the Taguchi optimization method is improved to model to optimum mix design of the high strength self-consolidating concrete (HSSCC). For this purpose, at first different quality criteria and the parameters influencing them were defined based on the available literature. The Taguchi approach was then utilized to generate an the orthogonal array of the parameters. The experimental tests were then conducted according to the suggested design array in order to obtain the experimental data for each and every single scenario. The Best-Worst method is then adopted for pairwise comparisons of the quality criteria and experiments as such to obtain the overall weights of experiments with respect to each quality characteristics. Analysis of variance was also utilized to appraise the effective factors and the optimal mixture design. It was found that the proposed method was efficient in obtaining the optimal mixture design of the manufacturing process according to decision makers' preferences. The experimental results indicated a significant improvement in the total quality of concrete compared to the decision maker's estimated mixture design. The cement amount, water to cementitious ratio and mixing time are the most significant parameters affecting the concrete mix design. (C) 2019 Elsevier Ltd. All rights reserved.
机译：由于混凝土拌和设计中涉及许多参数，因此对于混凝土工程师而言，寻找最佳拌和设计一直是一个难题。在这项研究中，改进了Taguchi优化方法，以对高强度自固结混凝土（HSSCC）进行建模以优化配比设计。为此，首先根据现有文献定义了不同的质量标准和影响它们的参数。然后使用Taguchi方法生成参数的正交数组。然后，根据建议的设计阵列进行实验测试，以获得每种情况的实验数据。然后，采用“最佳-最差”方法对质量标准和实验进行成对比较，从而获得关于每种质量特征的实验总权重。方差分析还用于评估有效因素和最佳混合物设计。结果发现，所提出的方法可以有效地根据决策者的偏好获得制造过程的最佳混合设计。实验结果表明，与决策者的估计混合物设计相比，混凝土的总体质量有了显着改善。水泥用量，水胶比和混合时间是影响混凝土配合比设计的最重要参数。 （C）2019 Elsevier Ltd.保留所有权利。

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