Effect of aging on the fracture characteristics and brittleness of a high-strength concrete
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Tipus de documentArticle
Data publicació1998
EditorElsevier
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Results of notched beam (fracture) tests on a 60 MPa silica fume concrete at the ages of 4,
10, 31 and 232 days are presented. Fracture parameters at the different ages were obtained
using the size effect and cohesive crack models, which indicate that the fracture resistance
(toughness and energy) decreases and the brittleness increases with the age of the concrete.
This trend is attributed to the increase in the strength of the hardened cement paste and the
interfaces that leads to less bond cracking and more aggregate rupture, and consequently, to
more brittle failure and lower toughening.
CitacióGettu, R.; García-Álvarez, V.O.; Aguado, A. Effect of aging on the fracture characteristics and brittleness of a high-strength concrete. Cement and concrete research. 1998, vol. 28, no. 3, pp. 349-355.
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