A model for two types of calcium silicate hydrate in the microstructure of Portland cement pastes
2000; Elsevier BV; Volume: 30; Issue: 6 Linguagem: Inglês
10.1016/s0008-8846(00)00257-x
ISSN1873-3948
AutoresPaul D. Tennis, Hamlin M. Jennings,
Tópico(s)Grouting, Rheology, and Soil Mechanics
ResumoA new physical basis for a previously published model for the structure of calcium silicate hydrate (C-S-H) as measured by nitrogen sorption is described. This refined model provides a method of predicting the density, the nitrogen accessible gel porosity, and associated surface area of C-S-H in Portland cement pastes. The basis for the model is that C-S-H forms as one of two types, high- or low-density C-S-H. This provides a promising tool for characterizing the microstructure in a way that can be applied to understanding properties of engineering significance.
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