期刊
CEMENT AND CONCRETE RESEARCH
卷 156, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cemconres.2022.106783
关键词
Admixture; Cement; PCE; Molecular dynamics simulation
资金
- Swiss National Science Foundation [172481]
This paper reviews methods of molecular simulation of chemical admixtures, focusing on adsorption behavior and conformations, in order to identify opportunities, challenges, and prospects for future development.
Chemical admixtures are an essential ingredient of modern concrete mix, but many of their molecular scale working mechanisms remain poorly described. In this respect, recent advances in computational methods, provide a unique opportunity to gain the needed molecular level insights into the mechanism of action of chemical admixtures in cementitious systems. Such studies are slowly increasing in number and this paper proposes a review on approaches that deal with molecular simulations of chemical admixtures. The key properties studied so far are mainly adsorption behaviors and conformations of monomers, oligomers and polymers (molecular weight similar to 10,000 g/mol). Our aim is to identify opportunities, challenges and give perspectives on the future of molecular modeling of chemical admixture-cement interactions.
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