Multi-scale and multi-physics deterioration modelling for design and assessment of reinforced concrete structures

  • Mette Geiker
  • Alexander Michel
  • Michel D. Lepech
  • Jie Wu
  • Henrik Stang
Keywords: concrete, reinforcement corrosion, multi-scale, multi-physics

Abstract

This paper discusses the need for reliable and valid multi-scale and multi-physics prediction models to support the design of new as well as the assessment, maintenance, and repair of existing reinforced concrete structures.

A multi-physics and multi-scale deterioration model for chloride-induced corrosion of reinforced concrete has been established. Ongoing work includes extension of the model to 3D as well as modelling of the impact of the steel-concrete interface characteristics and electrochemical potential on chloride thresholds.

Identified challenges include, among others, the improved understanding and modelling of single- and multi-deterioration mechanisms, environmental exposure, and data for validation.

We envision that next generation maintenance and management of reinforced concrete infrastructure will combine numerical simulations based on multi-scale and multi-physics principles and extensive in-situ monitoring, allowing continuous Bayesian updating of 4D simulations of functional performance.

Published
2017-12-31
How to Cite
Geiker, M., Michel, A., Lepech, M., Wu, J. and Stang, H. (2017) “Multi-scale and multi-physics deterioration modelling for design and assessment of reinforced concrete structures”, RILEM Technical Letters, 2, pp. 119-128. doi: 10.21809/rilemtechlett.2017.49.
Section
Articles