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Fracture of Hardened Cement Paste in Relation to Surface Forces and Porosity
Author(s) -
RADJY FARIBORZ
Publication year - 1974
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1974.tb10820.x
Subject(s) - materials science , porosity , fracture (geology) , tobermorite , composite material , limiting , surface energy , fracture mechanics , surface (topology) , cement , stress (linguistics) , geometry , mechanical engineering , mathematics , engineering , linguistics , philosophy
The fracture surface energy, γ, is interpreted for two limiting fracture mechanisms. In the first mechanism, all the gel particles encountered by the propagating crack break. In the second case, the gel particles are assumed to be whiskerlike and do not break. Only in the first model is the comparison of γ, with the surface energy of tobermorite relevant. Both models take the effect of porosity on γ, and the fracture stress into account.