SCIENCE@home

Reliability assessment of RAC chloride concentration using Karhunen–Loève expansion with digital-image kernels

Yuching Wu,Peng Zhi

Published 2020 in Construction and Building Materials

ABSTRACT

Abstract Measurement of the durability of recycled aggregate concrete (RAC) is significant for steel reinforced concrete structures in chloride-rich environment. In literature, an ideal five-phase model is usually used as a stochastic volume element (SVE) of RAC. As an extension of previous researches, this paper improves the multiscale digital-image driven method developed previously to explore the influence of fine-scale randomness on the coarse-scale chloride diffusivity in SVE, which is used in the current stochastic analysis. In the novel numerical method, the Karhunen–Loeve expansion with the digital-image covariance kernel is used to generate spectral functions for the finite element model. Results of the proposed method are in great agreement with ones in literature. After a couple of numerical experiments are made, it is demonstrated that the influence of fine-scale randomness is considerable on the global chloride diffusivity in RAC.

PUBLICATION RECORD

CITATION MAP

EXTRACTION MAP

CLAIMS

  • No claims are published for this paper.

CONCEPTS

  • No concepts are published for this paper.

REFERENCES

Showing 1-48 of 48 references · Page 1 of 1

CITED BY

Showing 1-5 of 5 citing papers · Page 1 of 1