An extended numerical model of the first exothermic peak for three dimensional printed cement-based materials
作者机构：School of Materials Science and EngineeringTongji UniversityShanghai 200092China School of Civil EngineeringTongji UniversityShanghai 200092China
出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)
年 卷 期：2024年第18卷第1期
页 面：80-88页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0814[工学-土木工程]
基 金：financially supported by the National Natural Science Foundation of China(Grant No.52178240) the Shanghai Scientific Research Program(No.21DZ1200401)
主 题：3D printed cement-based materials cement hydration the first exothermic peak liquid quick-setting agent numerical model
摘 要：The first exothermic peak of cement-based material occurs a few minutes after mixing,and the properties of three dimensional(3D)printed concrete,such as setting time,are very sensitive to *** this background,based on the classical Park cement exothermic model of hydration,we propose and construct a numerical model of the first exothermic peak,taking into account the proportions of C_(3)S,C_(3)A and quicklime in *** calculated parameters are calibrated by means of relevant published exothermic test *** is found that this developed model offers a good simulation of the first exothermic peak of hydration for C_(3)S and C_(3)A proportions from 0 to 100% of cement clinker and reflects the effect of quicklime content at 8%-10%.The unique value of this research is provision of an important computational tool for applications that are sensitive to the first exothermic peak of hydration,such as 3D printing.
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