Premium
Slow Crack Growth in Cement Paste
Author(s) -
NADEAU J. S.,
MINDESS S.,
HAY J. M.
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.tb10811.x
Subject(s) - materials science , fracture toughness , composite material , stress intensity factor , cement , torsion (gastropod) , modulus , elastic modulus , crack growth resistance curve , fracture mechanics , toughness , crack closure , medicine , surgery
The dependence of crack velocity on stress intensity was measured in hardened cement paste. Fracture toughness, modulus of rupture, and dynamic elastic modulus were also measured to permit calculation of the time‐to‐failure (life expectancy) of stressed cement paste. The double torsion method was used for slow crack growth studies and fracture toughness measurements. Fracture toughness was also measured by a notched‐beam method; the agreement between the two methods was excellent. The crack‐velocity‐stress‐intensity curve for cement paste resembles that of glass in water. The slope of the log V ‐log K I curve is ∼35.