Microplane Model for Recycled Aggregate Concrete

Title: Microplane Model for Recycled Aggregate Concrete
Author(s): Jiabin LI, Jianzhuang XIAO, Jian HUANG
Paper category : conference
Book title: 2nd International Conference on Waste Engineering and Management - ICWEM 2010
Editor(s): J.Zh. Xiao, Y. Zhang, M.S. Cheung and Reuben P. K. Chu
Print-ISBN: 978-2-35158-102-5
e-ISBN: 978-2-35158-103-2
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 542 - 550
Total Pages: 9
Nb references: 7
Language: English

Abstract: This paper presents an innovative constitutive model for recycled aggregate concrete subjected to compression and tension. The model was formulated through the extension of a newly developed material model for normal (or natural aggregate) concrete, called M4L and formulated using the microplane theory. The model parameters in model M4L were evaluated according to the test data for concrete with different amounts of recycled (coarse) aggregate.
The model for recycled aggregate concrete was formulated by making the normal stress boundary and some key parameters in the deviatoric stress boundaries in model M4L dependent on the recycled aggregate amount. Through such a way, the influence of recycled aggregate on the nonlinear material behaviour of concrete both in compression and tension can be well captured. The model is further verified with other test data in the literature. Numerical results indicate that the model developed in this paper is able to sufficiently depict the inelastic behaviour of recycled aggregate concrete, including the change of Poisson’s ratio with the stress level as well as the volume change.

Online publication: 2011-01-25
Publication type : full_text
Public price (Euros): 0.00