Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Probability-based maintenance modeling and planning for reinforced concrete assets subjected to chloride ingress

Abstract : Chloride ingress into concrete is the primary cause of steel corrosion that leads to the deterioration of reinforced concrete (RC) assets and eventual reduction of its service life. The maintenance of RC buildings and structures has become a major concern, and thus the development of an effective maintenance plan is required. This study focuses on deterministic and probabilistic analysis of service life (or repair application time) for RC assets repaired by cover rebuilding techniques in extreme marine environments exposed to chloride attack. A maintenance model is developed, based on the mechanism of chloride transport in repaired concrete elements, that simulates different cover rebuilding methods and strategies. Computationally, the probability-based maintenance model combines the Latin Hypercube technique with finite element and finite difference methods. Probabilistic data for five governing random variables is considered, including diffusion coefficient, surface chloride concentration, concrete cover depth, concrete replacement depth, and critical chloride value for corrosion initiation. Two maintenance strategies are introduced, which can be categorized as corrective and preventive repair strategies. The deterministic study shows that a deeper repair depth leads to fewer repairs and larger repair intervals. The results of the probabilistic assessment reveal that a preventive repair model with regularly scheduled repair intervals efficiently decreases corrosion initiation risks. It was also demonstrated how shorter repair intervals and deeper depths of concrete repair can achieve an acceptable probability of corrosion initiation.
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-03693118
Contributor : Emilio Bastidas-Arteaga Connect in order to contact the contributor
Submitted on : Friday, June 10, 2022 - 11:25:42 AM
Last modification on : Saturday, June 25, 2022 - 3:53:07 AM

Files

 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : 2024-06-10

Please log in to resquest access to the document

Identifiers

Citation

Quynh Truong, Charbel-Pierre El Soueidy, yue Li, Emilio Bastidas-Arteaga. Probability-based maintenance modeling and planning for reinforced concrete assets subjected to chloride ingress. Journal of Building Engineering, Elsevier, 2022, 54, pp.104675. ⟨10.1016/j.jobe.2022.104675⟩. ⟨hal-03693118⟩

Share

Metrics

Record views

0