The microstructure of Portland cement-based materials: Computer simulation and percolation theory
- National Inst. of Standards and Technology, Gaithersburg, MD (United States)
Portland cement-based materials are usually composites, where the matrix consists of portland cement paste. Cement paste is a material formed from the hydration reaction of portland cement, usually a calcium silicate material, with water. The microstructure of cement paste changes drastically over a time period of about one week, with slower changes occurring over subsequent weeks to months. The effect of this hydration process on the changing microstructure can be represented using computer simulation techniques applied to three dimensional digital image-based models. Percolation theory can be used to understand the evolving microstructure in terms of the three percolation thresholds that are of importance in the cement past microstructure: the set point, capillary porosity percolation, and the percolation of the C-S-H phase.
- Sponsoring Organization:
- National Science Foundation, Washington, DC (United States)
- OSTI ID:
- 305581
- Report Number(s):
- CONF-980405-; TRN: IM9906%%261
- Resource Relation:
- Conference: Spring meeting of the Materials Research Society, San Francisco, CA (United States), 13-17 Apr 1998; Other Information: PBD: 1998; Related Information: Is Part Of Computational and mathematical models of microstructural evolution; Bullard, J.W. [ed.] [Univ. of Illinois, Urbana, IL (United States)]; Chen, L.Q. [ed.] [Pennsylvania State Univ., University Park, PA (United States)]; Kalia, R.K. [ed.] [Louisiana State Univ., Baton Rouge, LA (United States)]; Stoneham, A.M. [ed.] [University College London (United Kingdom)]; PB: 194 p.; Materials Research Society symposium proceedings, Volume 529
- Country of Publication:
- United States
- Language:
- English
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