Corrosion assessment on reinforced concrete and its service life prediction
Deterioration of structural concrete may be caused either by chemical or physical effects. Corrosion of embedded steel is a major cause of deterioration of concrete structures at the present time. This lead to structural weakening due to loss of steel cross-section, surface staining, cracking or spa...
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| Format: | Thesis |
| Published: |
2005
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| Online Access: | http://eprints.uthm.edu.my/1306/ http://eprints.uthm.edu.my/1306/1/24_Pages_from_CORROSION_ASSESSMENT_ON_REINFORCED_CONCRETE_AND_ITS_SERVICE__LIFE_PREDICTION.pdf |
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| Summary: | Deterioration of structural concrete may be caused either by chemical or
physical effects. Corrosion of embedded steel is a major cause of deterioration of
concrete structures at the present time. This lead to structural weakening due to
loss of steel cross-section, surface staining, cracking or spalling and delamination
of concrete and then gradually reduces the service life of the reinforced concrete
structures. The most biggest problem is concerned with the structural integrity and
safety of reinforced concrete structures by reducing the load carrying capacity.
This project was to assess the degree of corrosion on reinforced concrete
structure and estimating the residual service life. It was conducted based on
electrochemical methods. These methods include galvanostatic pulse method and
linear polarization method. A Non-Destructive Test techniques called GalvaPulse
was used in this study. These equipments allow us to determine the degree of
corrosion, rate of corrosion and interpret the result in corrosion mapping.
From the results, assessment on the validation of corrosion in short and
long terms by using predictive models are discussed. |
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