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Stress-strain relationship for asphalt concrete in compression
Abstract Experiments on short term static compression of asphalt concrete specimens, differing in aggregate, compaction effort, bitumen percentage, size and type of loading, demonstrate a common pattern in the stress-strain relationship, identical to that long known for cement concrete and rock. Beyond the limit of linearity ‘swelling’ of asphalt concrete specimens is visible to the naked eye, analogously to cement concrete. When the friction between specimens and press platens is reduced, asphalt concrete undergoes a splitting type of failure, again like cement concrete. In the light of this similarity, the problem of asphalt concrete behaviour under short term compression is considered from the point of view adopted for cement concrete and rock. In the atrophy model the nonlinear behaviour of cement concrete in the ascending branch is ascribed to its degeneration due to the microcracking process. Applied to asphalt concrete, the model agrees well with experimental results.
Stress-strain relationship for asphalt concrete in compression
Abstract Experiments on short term static compression of asphalt concrete specimens, differing in aggregate, compaction effort, bitumen percentage, size and type of loading, demonstrate a common pattern in the stress-strain relationship, identical to that long known for cement concrete and rock. Beyond the limit of linearity ‘swelling’ of asphalt concrete specimens is visible to the naked eye, analogously to cement concrete. When the friction between specimens and press platens is reduced, asphalt concrete undergoes a splitting type of failure, again like cement concrete. In the light of this similarity, the problem of asphalt concrete behaviour under short term compression is considered from the point of view adopted for cement concrete and rock. In the atrophy model the nonlinear behaviour of cement concrete in the ascending branch is ascribed to its degeneration due to the microcracking process. Applied to asphalt concrete, the model agrees well with experimental results.
Stress-strain relationship for asphalt concrete in compression
Starodubsky, S. (author) / Blechman, I. (author) / Livneh, M. (author)
1994
Article (Journal)
English
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