Abstract
A fiber-reinforced polymer (FRP) composite jacket was constructed to rehabilitate a damaged reinforced concrete pier cap of a bridge in Rhode Island. The unique feature of the construction was the use of in-situ vacuum-bagging technique. The reinforced concrete pier cap was damaged due to corrosion of steel reinforcement leading to spalling of the concrete cover. The two composite jackets covered the top and sides of two pier caps that were 15.5 meters long, 1 meter wide, and 1.2 meters deep. The composite jacket consisted of fiberglass reinforcement and epoxy matrix. This experimental research project was undertaken to evaluate whether the vacuum-bagging technique commonly used by the aerospace industry can be adopted for bridges under field conditions. The results indicate that the technique is viable and provides much better bonds to weathered concrete surface by eliminating the air bubbles and air pockets at the concrete-FRP interface. The construction details outlined in this paper consist of surface cleaning, priming, fabric application, vacuum bagging, and post-curing. The long-term performance of the composite jacket is currently under evaluation.
| Original language | English (US) |
|---|---|
| Title of host publication | International SAMPE Symposium and Exhibition (Proceedings) |
| Pages | 1011-1024 |
| Number of pages | 14 |
| Volume | 50 |
| State | Published - 2005 |
| Externally published | Yes |
| Event | 50th International SAMPE Symposium and Exhibition - Long Beach, CA, United States Duration: May 1 2005 → May 5 2005 |
Other
| Other | 50th International SAMPE Symposium and Exhibition |
|---|---|
| Country | United States |
| City | Long Beach, CA |
| Period | 5/1/05 → 5/5/05 |
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Keywords
- Infrastructure
- Rehabilitation
- Vacuum Bagging
ASJC Scopus subject areas
- Building and Construction
- Chemical Engineering(all)
- Polymers and Plastics
- Chemical Engineering (miscellaneous)
Cite this
Composite jackets for rehabilitation of damaged reinforced concrete pier caps. / Nazier, Mohamed; Giancaspro, James W; Balaguru, P.
International SAMPE Symposium and Exhibition (Proceedings). Vol. 50 2005. p. 1011-1024.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Composite jackets for rehabilitation of damaged reinforced concrete pier caps
AU - Nazier, Mohamed
AU - Giancaspro, James W
AU - Balaguru, P.
PY - 2005
Y1 - 2005
N2 - A fiber-reinforced polymer (FRP) composite jacket was constructed to rehabilitate a damaged reinforced concrete pier cap of a bridge in Rhode Island. The unique feature of the construction was the use of in-situ vacuum-bagging technique. The reinforced concrete pier cap was damaged due to corrosion of steel reinforcement leading to spalling of the concrete cover. The two composite jackets covered the top and sides of two pier caps that were 15.5 meters long, 1 meter wide, and 1.2 meters deep. The composite jacket consisted of fiberglass reinforcement and epoxy matrix. This experimental research project was undertaken to evaluate whether the vacuum-bagging technique commonly used by the aerospace industry can be adopted for bridges under field conditions. The results indicate that the technique is viable and provides much better bonds to weathered concrete surface by eliminating the air bubbles and air pockets at the concrete-FRP interface. The construction details outlined in this paper consist of surface cleaning, priming, fabric application, vacuum bagging, and post-curing. The long-term performance of the composite jacket is currently under evaluation.
AB - A fiber-reinforced polymer (FRP) composite jacket was constructed to rehabilitate a damaged reinforced concrete pier cap of a bridge in Rhode Island. The unique feature of the construction was the use of in-situ vacuum-bagging technique. The reinforced concrete pier cap was damaged due to corrosion of steel reinforcement leading to spalling of the concrete cover. The two composite jackets covered the top and sides of two pier caps that were 15.5 meters long, 1 meter wide, and 1.2 meters deep. The composite jacket consisted of fiberglass reinforcement and epoxy matrix. This experimental research project was undertaken to evaluate whether the vacuum-bagging technique commonly used by the aerospace industry can be adopted for bridges under field conditions. The results indicate that the technique is viable and provides much better bonds to weathered concrete surface by eliminating the air bubbles and air pockets at the concrete-FRP interface. The construction details outlined in this paper consist of surface cleaning, priming, fabric application, vacuum bagging, and post-curing. The long-term performance of the composite jacket is currently under evaluation.
KW - Infrastructure
KW - Rehabilitation
KW - Vacuum Bagging
UR - http://www.scopus.com/inward/record.url?scp=31944440348&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=31944440348&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:31944440348
VL - 50
SP - 1011
EP - 1024
BT - International SAMPE Symposium and Exhibition (Proceedings)
ER -