Skip navigation

Optimized maintenance strategy for concrete structures affected by cracking due to reinforcement corrosion

Optimized maintenance strategy for concrete structures affected by cracking due to reinforcement corrosion

Chen, Hua-Peng and Alani, Amir M. (2013) Optimized maintenance strategy for concrete structures affected by cracking due to reinforcement corrosion. ACI Structural Journal, 110 (2). pp. 229-238. ISSN 0889-3241

Full text not available from this repository.

Abstract

An approach for predicting the development of concrete cracking because of steel reinforcement corrosion and for determining risk-cost-benefit optimized maintenance strategies during the service life of concrete structures is presented in this paper. Crack evolution in the concrete cover due to expansive corrosion products is investigated at different stages during crack propagation across the cover from the reinforcing bar-concrete interface to the concrete-free surface. Crack growth over time is predicted analytically by means of a softening-cohesive model for cracked concrete. Then, a stochastic deterioration model based on a stochastic process, such as a gamma process, is adopted to assess the actual state of the deteriorating structure and to evaluate the probability of failure associated with concrete cracking. Optimal repair planning and maintenance strategies during the service life are determined by balancing the cost for maintenance and the risk of failure. The results from the worked example show that the proposed approach can correctly predict concrete crack growth over time and effectively provide a risk-cost-benefit optimized repair strategy during the service life of the structure affected by bar corrosion.

Item Type: Article
Uncontrolled Keywords: concrete cracking, optimized maintenance strategy, reinforcement corrosion, stochastic deterioration process, structural performance degradation
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Pre-2014 Departments: School of Engineering
School of Engineering > Department of Civil Engineering
Related URLs:
Last Modified: 14 Oct 2016 09:24
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/10194

Actions (login required)

View Item View Item