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Methodology for predicting the properties of cement composites at different scales

机译：预测不同规模水泥复合材料性能的方法

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In order to meet new demands, the performance of cementitious composites needs to be altered scientifically, rather than on a trial-and-error basis. In this regard, a computational approach is proposed to predict the properties (modulus, strength and strain) of cementitious composites. The information from an analytical hydration model (at the lowest scale) is used for homogenisation and upscaled to obtain the properties of the cementitious composite. The proposed computational method has the unique characteristics of not only predicting the mechanical properties of the cement composite with reasonable accuracy, but is also able to trace how the properties evolve during the hydration process. The developed method is also extended to predict the strength and strain capacity of fibre incorporated cementitious composite. The analytically obtained results at each scale are validated through experimental investigations. The computational approach proposed and the findings of this study will assist the development of performance-based design of concrete composite.
机译：为了满足新的需求，需要科学地改变水泥基复合材料的性能，而不是反复试验。在这方面，提出了一种计算方法来预测水泥基复合材料的性能（模量，强度和应变）。来自分析水合模型的信息（最小规模）用于均质化和按比例放大以获得水泥复合材料的性能。所提出的计算方法不仅具有以合理的精度预测水泥复合材料的机械性能的独特特征，而且还能够追踪水合过程中性能的演变过程。开发的方法还扩展到预测掺入纤维的水泥基复合材料的强度和应变能力。通过实验研究验证了各个规模的分析获得的结果。提出的计算方法和本研究的结果将有助于基于性能的混凝土复合材料设计的发展。

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