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Influence of composite materials confinement on alkali aggregate expansion



Title: Influence of composite materials confinement on alkali aggregate expansion
Author(s): I. Mohamed, L. Curtil, S. Ronel-Idrissi, P. Hamelin
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 277
Issue date: 2005-04-01
Publication year: 2005
Pages: 387 - 394
Total Pages: 8
Nb references: 24
Language: English


Abstract: Concrete hollow cylinders subjected to combined compression and torsion were used to simulate concrete airport pavements subjected to biaxial fatigue loading in the compression region.
It was found that the increase in the compliance in the post-peak period is due to the damage evolution of the specimen.
The static failure mechanism was explained by fracture mechanics.
Similar failure was observed in fatigue loading.
It was found that with the crack growth as a parameter, the static response acts as an envelope for the fatigue failure response.
The rate of the crack growth under fatigue loading follows a two-stage process: a deceleration stage followed by an acceleration stage up to failure.
In the deceleration stage, the growth is governed by the R-curve of the specimen.
In the acceleration stage, it is governed by the Paris Law.
The previously proposed model in the biaxial tension region was extended to the biaxial compression region.
In the biaxial compression region, static and fatigue behaviors under pure compressive loading were modelled in terms of inelastic displacement, rather than crack length.


Online publication: 2005-01-21
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14158


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