### Abstract

Corrosion of reinforcement in concrete is a major durability problem of reinforced concrete structures. The corrosion is initiated by chloride penetration into the concrete, which is a diffusion-controlled process involving many complex physical and chemical mechanisms. Large random variation has shown in the corrosion damage of reinforced concrete structures, and there is a pressing need to develop a reliability analysis method for chloride penetration and for the onset of steel corrosion in concrete. In order to conduct a reliability analysis, a comprehensive material model for chloride concentration is developed and described, and some of the model parameters (water-cement ratio and curing time) are selected as random variables. By including uncertainties in the selected variables, the chloride penetration front at a point in time can be represented by a time-dependent probabilistic distribution. Similar to the concepts of supply and demand used in structural reliability analysis, the chloride penetration front at a target level (depth) with respect to time can be represented by the probability distribution of crossing the target level. A detailed description of the basic concepts and numerical examples are given. To include the effect of uncertainties of the material parameters, a recently developed Monte Carlo simulation program was used in numerical examples.

Original language | English |
---|---|

Pages (from-to) | 305-315 |

Number of pages | 11 |

Journal | Probabilistic Engineering Mechanics |

Volume | 17 |

Issue number | 3 |

DOIs | |

Publication status | Published - 2002 Jul 1 |

Externally published | Yes |

### Fingerprint

### Keywords

- Chloride penetration
- Concrete durability
- Monte Carlo simulation
- Reliability

### ASJC Scopus subject areas

- Mechanical Engineering
- Safety, Risk, Reliability and Quality

### Cite this

*Probabilistic Engineering Mechanics*,

*17*(3), 305-315. https://doi.org/10.1016/S0266-8920(02)00014-0

**Reliability analysis of chloride penetration in saturated concrete.** / Kong, Jun g Sik; Ababneh, Ayman N.; Frangopol, Dan M.; Xi, Yunping.

Research output: Contribution to journal › Article

*Probabilistic Engineering Mechanics*, vol. 17, no. 3, pp. 305-315. https://doi.org/10.1016/S0266-8920(02)00014-0

}

TY - JOUR

T1 - Reliability analysis of chloride penetration in saturated concrete

AU - Kong, Jun g Sik

AU - Ababneh, Ayman N.

AU - Frangopol, Dan M.

AU - Xi, Yunping

PY - 2002/7/1

Y1 - 2002/7/1

N2 - Corrosion of reinforcement in concrete is a major durability problem of reinforced concrete structures. The corrosion is initiated by chloride penetration into the concrete, which is a diffusion-controlled process involving many complex physical and chemical mechanisms. Large random variation has shown in the corrosion damage of reinforced concrete structures, and there is a pressing need to develop a reliability analysis method for chloride penetration and for the onset of steel corrosion in concrete. In order to conduct a reliability analysis, a comprehensive material model for chloride concentration is developed and described, and some of the model parameters (water-cement ratio and curing time) are selected as random variables. By including uncertainties in the selected variables, the chloride penetration front at a point in time can be represented by a time-dependent probabilistic distribution. Similar to the concepts of supply and demand used in structural reliability analysis, the chloride penetration front at a target level (depth) with respect to time can be represented by the probability distribution of crossing the target level. A detailed description of the basic concepts and numerical examples are given. To include the effect of uncertainties of the material parameters, a recently developed Monte Carlo simulation program was used in numerical examples.

AB - Corrosion of reinforcement in concrete is a major durability problem of reinforced concrete structures. The corrosion is initiated by chloride penetration into the concrete, which is a diffusion-controlled process involving many complex physical and chemical mechanisms. Large random variation has shown in the corrosion damage of reinforced concrete structures, and there is a pressing need to develop a reliability analysis method for chloride penetration and for the onset of steel corrosion in concrete. In order to conduct a reliability analysis, a comprehensive material model for chloride concentration is developed and described, and some of the model parameters (water-cement ratio and curing time) are selected as random variables. By including uncertainties in the selected variables, the chloride penetration front at a point in time can be represented by a time-dependent probabilistic distribution. Similar to the concepts of supply and demand used in structural reliability analysis, the chloride penetration front at a target level (depth) with respect to time can be represented by the probability distribution of crossing the target level. A detailed description of the basic concepts and numerical examples are given. To include the effect of uncertainties of the material parameters, a recently developed Monte Carlo simulation program was used in numerical examples.

KW - Chloride penetration

KW - Concrete durability

KW - Monte Carlo simulation

KW - Reliability

UR - http://www.scopus.com/inward/record.url?scp=0036640391&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036640391&partnerID=8YFLogxK

U2 - 10.1016/S0266-8920(02)00014-0

DO - 10.1016/S0266-8920(02)00014-0

M3 - Article

AN - SCOPUS:0036640391

VL - 17

SP - 305

EP - 315

JO - Probabilistic Engineering Mechanics

JF - Probabilistic Engineering Mechanics

SN - 0266-8920

IS - 3

ER -