期刊
LANGMUIR
卷 38, 期 1, 页码 472-481出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.1c02843
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资金
- Installations and Operational Environments Office of the Technical Director of the United States Army Corps of Engineers and the Environmental Security Technology Certification Program of the Department of Defense by the USAERDC [493408]
- DOD High Performance Computing Modernization Program at ERDC, Vicksburg
Research has found that dopamine binds preferentially to alkaline earth oxides, making it an ideal candidate for improved adhesion in concrete mixtures rich in these minerals.
Concrete has long been a standard in construction projects. However, increasing the binding of cement paste to the concrete aggregate (a collection of geological materials containing, e.g., gravel, sand, etc.) remains an open area of research, as this is a common failure point in concrete-based infrastructure. One solution is the application of an adhesive into the mix that not only is capable of binding under aqueous conditions but can aid in the binding of the aggregate to the cement paste. Bioinspired catecholic-type molecules have been shown to be an ultrastrong adhesive, even under wet conditions, and would, in principle, be an ideal candidate to use. In this study, we examine how dopamine (a molecule with a catechol functionality) binds to various oxides found in concrete mixtures. We find that dopamine binds preferentially to alkaline earth oxides; thus, for concrete mixtures rich in these minerals dopamine would be an ideal candidate for improved adhesion.
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