Advances in atomistic modeling and understanding of drying shrinkage in cementitious materials
Advances in atomistic modeling and understanding of drying shrinkage in cementitious materials
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DOI：
10.1016/j.cemconres.2021.106536
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发表时间：
2021-07-27
影响因子：
11.4
通讯作者：
Vandamme, Matthieu
中科院分区：
文献类型：
--
作者：
Qomi, Mohammad Javad Abdolhosseini;Brochard, Laurent;Vandamme, Matthieu
尽管经过了一个多世纪的研究，干燥收缩仍然会在我们的混凝土基础设施中造成不必要的应力和裂缝。这在一定程度上是由于对控制胶凝材料干燥收缩的潜在机制缺乏了解。受到原子模拟对材料科学的巨大影响的启发，我们预计这种创新的模拟技术将掌握一把钥匙，在纳米尺度上解开干燥收缩的神秘本质。在本文中，我们首先详细介绍了基本物理概念和原子模拟方法。然后，我们讨论了原子模拟在理解胶凝材料和其他纳米孔和纳米层状体系中的干燥收缩方面所带来的进展。这篇综述还强调了与干燥收缩有关的重要的基本问题和实际问题，并描述了原子模拟如何帮助解决这些问题。
Despite more than a century of research, drying shrinkage still causes unwanted stresses and cracks in our concrete infrastructures. This is partly due to the lack of understanding of the underlying mechanisms governing the drying shrinkage in cementitious materials. Inspired by the tremendous impact of atomistic simulations on materials science, we expect such innovative simulation techniques to hold a key to unlocking the enigmatic nature of drying shrinkage at the nanoscale. In this treatise, we first introduce basic physics concepts and atomistic simulation methods in detail. Afterward, we discuss the progress brought by atomistic simulations in understanding the drying shrinkage in cementitious materials and other nanoporous and nanolayered systems. This review also highlights important remaining fundamental questions and practical issues regarding drying shrinkage and delineates how atomistic simulations can help resolve them.