Predicting the Remaining Service Life of a Reinforced Concrete Structure: Time to Corrosion Initiation | |
| Author | Detera, Dante Ian Moso |
| Call Number | AIT Thesis no.ST-13-14 |
| Subject(s) | Reinforced concrete Reinforced concrete--Corrosion |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-13-14 |
| Abstract | A previous service life prediction model that considers the statistical nature of factors affecting chloride induced corrosion is applied on an existing reinforced concrete container terminal structure as a case study. The model expands on the solution to Fick’s second law of diffusion into a Monte Carlo simulation method to calculate for the remaining service life of the structure. Emphasis was placed on the time to corrosion initiation, but advances can be readily included for the time to corrosion propagation after corrosion initiation. Chloride profiles collected from the container terminal was used to determine the values of surface chloride concentration, apparent diffusion coefficient, and clear cover depth. A range of chloride corrosion initiation concentration values was determined from recent and existing literature. The accuracy of the prediction model applied on this study mainly depend on the accuracy of the input variables, the accuracy of the input variables also depends on how closely the true deterioration mechanism occurring on the structure matches the chloride ion diffusion employed. It is recommend to further validating the previous service life prediction model applied in this study against other probabilistic models to provide higher confidence to its application. Also, sensitivity analysis of the input parameters might be helpful to determine the effect of each input parameter to the predicted service life t. |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-13-14 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai;Thanakorn Pheeraphan; |
| Examination Committee(s) | Punchet Thammarak ; |
| Scholarship Donor(s) | -; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2013 |