MECHANICAL MODELING OF CHEMO-MECHANICAL COUP -LING BEHAVIOR OF LEACHED CONCRETE

Author(s): Bei Huang, Chunxiang Qian, Shao Jianfu
Book Title: RILEM International Symposium on Concrete Modelling - CONMOD 2014
Editor: Kefei Li, Peiyu Yan and Rongwei Yang
ISBN: 978-2-35158-139-1
e-ISBN: 978-2-35158-140-7
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 504-510
Total Pages: 7
Language: English

Abstract: Based on the analysis and experimental results obtained from triaxial strain and stress relationships of leached concrete, an elastoplastic constitutive model coupled with leaching damage was formulated. Two damage parameters dm and dc, which refer to the mechanical and chemical damage respectively, were proposed in this paper. The plastic mechanism was related to deviatoric shearing and the leaching damage was identified as relative variation of porosity. Both elastic and plastic properties were effect by leaching damage. From the simulating results, it seemed that the proposed model was able to describe the main feature of mechanical behavior of cementitious materials in sound and degraded states.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00