Hsino Mahmoud, Jankowiak Tomasz, Jasiczak Józef
Department of Civil Engineering, Academy of Applied Sciences Stanisław Staszic in Piła, Podchorazych 10, 64-920 Pila, Poland.
Institute of Structural Analysis, Poznan University of Technology, Piotrowo 5, 60-965 Poznan, Poland.
Materials (Basel). 2022 Jul 4;15(13):4687. doi: 10.3390/ma15134687.
The article presents selected types of phase change materials (PCM) and their properties in terms of applications in various fields of science such as construction and concrete technology. The aim of the article is to present a comparative analysis between the results of the laboratory tests and numerical simulations. The analysis contains two types of PCM (powder and in liquid), which were dosed in a hybrid system to the concrete mix. The purpose of using PCM is to allow the technological barrier to be exceeded in hot and dry climate conditions, enabling the construction of non-cracking concrete structures. The paper presents a parametric analysis of the influence of various modeling elements on the obtained results. The procedure of generating and absorbing heat caused by the applied PCM was also implemented using user subroutine into finite element code (Abaqus/Standard). The numerically obtained results are consistent with the experimental results. The presented results demonstrate that the use of PCM improves the conditions of concrete maturation by reducing the average temperature of the mixture in its entire volume.
本文介绍了选定类型的相变材料（PCM）及其在建筑和混凝土技术等各个科学领域应用方面的特性。本文的目的是对实验室测试结果和数值模拟进行对比分析。该分析包含两种类型的PCM（粉末状和液体状），它们被添加到混合系统的混凝土混合料中。使用PCM的目的是在炎热干燥的气候条件下突破技术障碍，从而能够建造无裂缝的混凝土结构。本文对各种建模元素对所得结果的影响进行了参数分析。由所应用的PCM引起的产热和吸热过程也通过用户子程序在有限元代码（Abaqus/Standard）中得以实现。数值计算结果与实验结果一致。所呈现的结果表明，使用PCM通过降低混合料整体体积的平均温度改善了混凝土的养护条件。
