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Multi-scale constitutive model of solidifying cementitious composites and application to cracking assessment of a concrete structure



Title: Multi-scale constitutive model of solidifying cementitious composites and application to cracking assessment of a concrete structure
Author(s): Tetsuya Ishida, Shingo Asamoto, Koichi Maekawa
Paper category : conference
Book title: 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering
Editor(s): J. Marchand, B. Bissonnette, R. Gagné, M. Jolin and F. Paradis
Print-ISBN: 2-35158-003-6
e-ISBN: 2351580028
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 85 - 99
Total Pages: 15
Nb references: 28
Language: English


Abstract: A multi-scale constitutive model of solidifying cementitious materials is presented based on a systematic knowledge coupling structural mechanics with chemo-physical phenomena. The model can reasonably simulate time-dependent deformations such as autogenous/drying shrinkage and basic/drying creep in laboratory tests under arbitrary environmental and loading conditions. Shrinkage induced cracking in an actual PRC bridge structure was examined by the analytical system, which reveals that large shrinkage of concrete and heavy reinforcement in the bridge led to plenty of cracks. In addition, the effect of aggregate on shrinkage was studied. Through sensitivity analyses and experimental verifications, the possible reasons to bring large shrinkage of concrete in the bridge are presented focusing on aggregate properties.


Online publication: 2006-08-02
Classification: 2.1 Theme 1: Numerical Models: from Microstructure to Transport Properties and Durability
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580028.007


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