Silicon ( IF 2.8 ) Pub Date : 2021-01-11 , DOI: 10.1007/s12633-020-00907-2 Ashfaque Ahmed Jhatial , Wan Inn Goh , Touqeer Ali Rind , Aneel Kumar
The need for thermal insulating building material due to increase in Urban Heat Island effect and the carbon footprint associated with concrete due to its binder, cement, has caused increase in utilization of waste by-products as supplementary cementitious materials (SCMs). Vast number of waste materials are available which could be potential substitutes of cement and help in developing eco-friendly concrete, however, conducting various tests on these would be costly and time-consuming. Therefore, computational simulation is a cost-effective and time-saving alternative for thorough time-consuming and expensive experimental studies. The aim of current work was to conduct the finite element simulation to assess the performance of eco-friendly lightweight foamed concrete incorporating two such waste products, Eggshell Powder (ESP) and Palm Oil Fuel Ash (POFA) being subject to thermal stress, heat transfer and parametric analysis and comparing the simulated results with data obtained from experimental work. Based on the results, it can be concluded that the surface temperature of the eco-friendly lightweight concrete panels decreased as the thickness of the panels increased. The finite element model by using ABAQUS software was validated with experimental results, and it was determined that the simulated results were within an acceptable range of 10% which could reduce to 2% if all panels with a set thickness of 50 mm. Therefore, computational model could help predict thermal stresses and heat transfer and provide fast-track thermal performance analysis of eco-friendly lightweight concrete incorporating various waste materials.
中文翻译:
利用ABAQUS模拟掺入棕榈油燃料灰和蛋壳粉的环保型轻质泡沫混凝土的热性能模拟
由于城市热岛效应的增加以及由于其粘合剂,水泥引起的与混凝土相关的碳足迹,对隔热建筑材料的需求已导致废物副产品作为辅助水泥材料(SCM)的利用增加。可以使用大量废料,这些废料可以作为水泥的潜在替代品,并有助于开发环保型混凝土,但是,对这些废料进行各种测试将是昂贵且费时的。因此,对于进行彻底的耗时且昂贵的实验研究,计算仿真是一种经济高效且省时的选择。当前工作的目的是进行有限元模拟,以评估结合了两种此类废物的环保型轻质泡沫混凝土的性能,对蛋壳粉(ESP)和棕榈油燃料灰(POFA)进行热应力,传热和参数分析,并将模拟结果与从实验工作获得的数据进行比较。根据结果,可以得出结论,环保轻质混凝土面板的表面温度随着面板厚度的增加而降低。实验结果验证了使用ABAQUS软件的有限元模型的有效性,并确定模拟结果在10%的可接受范围内,如果所有面板的设定厚度均为50 mm,则模拟结果可以降低到2%。因此,计算模型可以帮助预测热应力和热传递,并提供结合了各种废料的环保轻质混凝土的快速热性能分析。