The effect of particle size on fracture properties and size effect of concrete
conference paper
In the study the effect of scaling the material structure on the fracture behaviour of concrete is investigated. Next to this the size effect of concrete fracture strength and fracture energy is studied. The fracture mechanism of concrete made with different size aggregates are tested numerically. A lattice type fracture model is adopted to simulate the fracture mechanisms in concrete. The heterogeneity of the concrete is implemented using a regular pattern of circular particles on top of the lattice of beams. The results obtained show that with the model a structural size effect is obtained, which his however partly an artefact of the model. Furthermore a dependency of strength, fracture energy and brittleness of the aggregate size is found. © 2005 Materials Research Society.
Topics
TNO Identifier
239014
ISSN
0272-9172
ISBN
9781558998365
Source title
2005 MRS Spring Meeting, 28 March-1 April 2005, San Francisco, CA, USA (Conference code: 69755)
Pages
13-18 (EE2.10.1)
Files
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