Abstract
This paper presents the diagnostic investigation of a reinforced concrete jetty after 15 years of service. The main cause of the deterioration was reinforcement corrosion, which initiated within few years after the completion of the jetty structure. The structure underwent major corrosion rehabilitation after 7 years of service. Despite the use of high-strength concrete in the construction of the jetty structure, inadequate cover thickness for reinforced concrete elements intensified corrosion rate and caused early age corrosion problems to reappear. Other contributing factors included high salinity of the seawater by simultaneous action of climatic factors such as exposure to high relative humidity and air temperature. After the initial repair work, a new investigative procedure was carried out to reevaluate the repaired and surrounding unrepaired areas. Results indicate that the deterioration progressed even in concrete elements that were undamaged during the first step of the investigation. No sign of steel corrosion appeared on repaired areas; but shrinkage cracking and incipient corrosion around repaired areas were indications of dimensional and electrochemical incompatibility between repair concrete and substrate. The repair strategy was reevaluated through the repair index method proposed by Andrade and Izquierdo. The results showed that the patching repair method was more suitable and feasible in comparison with other techniques.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 294-301 |
| Number of pages | 8 |
| Journal | Journal of Performance of Constructed Facilities |
| Volume | 24 |
| Issue number | 4 |
| DOIs | |
| State | Published - Jul 2010 |
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Keywords
- Case reports
- Chlorides
- Concrete durability
- Corrosion
- Cracking
- Durability
- Jetties
- Marine terminals
- Rehabilitation
- Reinforced concrete
- Reinforcement
- Repair
- Sea water corrosion
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Safety, Risk, Reliability and Quality
Cite this
Investigation of corrosion damage and repair system in a concrete jetty structure. / Moradi-Marani, Farid; Shekarchi, Mohamad; Dousti, Ali; Mobasher, Barzin.
In: Journal of Performance of Constructed Facilities, Vol. 24, No. 4, 07.2010, p. 294-301.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Investigation of corrosion damage and repair system in a concrete jetty structure
AU - Moradi-Marani, Farid
AU - Shekarchi, Mohamad
AU - Dousti, Ali
AU - Mobasher, Barzin
PY - 2010/7
Y1 - 2010/7
N2 - This paper presents the diagnostic investigation of a reinforced concrete jetty after 15 years of service. The main cause of the deterioration was reinforcement corrosion, which initiated within few years after the completion of the jetty structure. The structure underwent major corrosion rehabilitation after 7 years of service. Despite the use of high-strength concrete in the construction of the jetty structure, inadequate cover thickness for reinforced concrete elements intensified corrosion rate and caused early age corrosion problems to reappear. Other contributing factors included high salinity of the seawater by simultaneous action of climatic factors such as exposure to high relative humidity and air temperature. After the initial repair work, a new investigative procedure was carried out to reevaluate the repaired and surrounding unrepaired areas. Results indicate that the deterioration progressed even in concrete elements that were undamaged during the first step of the investigation. No sign of steel corrosion appeared on repaired areas; but shrinkage cracking and incipient corrosion around repaired areas were indications of dimensional and electrochemical incompatibility between repair concrete and substrate. The repair strategy was reevaluated through the repair index method proposed by Andrade and Izquierdo. The results showed that the patching repair method was more suitable and feasible in comparison with other techniques.
AB - This paper presents the diagnostic investigation of a reinforced concrete jetty after 15 years of service. The main cause of the deterioration was reinforcement corrosion, which initiated within few years after the completion of the jetty structure. The structure underwent major corrosion rehabilitation after 7 years of service. Despite the use of high-strength concrete in the construction of the jetty structure, inadequate cover thickness for reinforced concrete elements intensified corrosion rate and caused early age corrosion problems to reappear. Other contributing factors included high salinity of the seawater by simultaneous action of climatic factors such as exposure to high relative humidity and air temperature. After the initial repair work, a new investigative procedure was carried out to reevaluate the repaired and surrounding unrepaired areas. Results indicate that the deterioration progressed even in concrete elements that were undamaged during the first step of the investigation. No sign of steel corrosion appeared on repaired areas; but shrinkage cracking and incipient corrosion around repaired areas were indications of dimensional and electrochemical incompatibility between repair concrete and substrate. The repair strategy was reevaluated through the repair index method proposed by Andrade and Izquierdo. The results showed that the patching repair method was more suitable and feasible in comparison with other techniques.
KW - Case reports
KW - Chlorides
KW - Concrete durability
KW - Corrosion
KW - Cracking
KW - Durability
KW - Jetties
KW - Marine terminals
KW - Rehabilitation
KW - Reinforced concrete
KW - Reinforcement
KW - Repair
KW - Sea water corrosion
UR - http://www.scopus.com/inward/record.url?scp=77955193605&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955193605&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)CF.1943-5509.0000112
DO - 10.1061/(ASCE)CF.1943-5509.0000112
M3 - Article
AN - SCOPUS:77955193605
VL - 24
SP - 294
EP - 301
JO - Journal of Performance of Constructed Facilities
JF - Journal of Performance of Constructed Facilities
SN - 0887-3828
IS - 4
ER -