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Computers and Concrete Volume 22, Number 1, July 2018 , pages 83-91 DOI: https://doi.org/10.12989/cac.2018.22.1.083 |
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RSA vs DEM in view of particle packing-related properties of cementitious materials |
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Kai Li and Piet Stroeven
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| Abstract | ||
| Various systems for simulating particulate matter are developed and used in concrete technology for producing virtual cementitious materials on the different levels of the microstructure. Basically, the systems can be classified as two distinct families, namely random sequential addition systems (RSAs) and discrete element methods (DEMs). The first type is hardly being used for this purpose outside concrete technology, but became popular among concrete technologists. Hence, it is of utmost relevance to compare the two families in their capabilities, so that the reliability of produced data can be estimated. This paper pursues to do this on the basis of earlier published material of work performed by a succession of PhD students in the group of the second author. Limited references will be given to external sources. | ||
| Key Words | ||
| cementitious materials; aggregate; hydration; porosimetry; permeability; structure-sensitivity | ||
| Address | ||
| Kai Li: Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, 410082 Changsha, China Piet Stroeven: Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 CN, Delft, The Netherlands | ||