Motivation for repairing pipes with CFRP composites

4 Motivation for repairing pipes with CFRP composites 

Because of the relatively high cost of the CFRP rehabilitation techniques as compared to more conventional construction methods, the use of these materials is primarily for targeted structural repairs and upgrades following pipeline condition assessment. 

A growing problem with underground infrastmcture is the coordination of buried assets among multiple owners such as the water and sewer municipalities with oil and gas companies and power companies, who are often sharing limited underground real estate. There is often some uncertainty in the precise location of all buried infrastmcture and sometimes this information has not been properly researched by contractors prior to performing work. Several recent CFRP repair projects resulted from contractor initiated defects. 

Another recent example took place in a midwestem US city where a horizontal directional driller punctured a 48 in. pipe segment (Bueno, 2012 Bass et al., 2012). The horizontal directional drilling (HDD) mishap created a 4 in. circular hole in a 

Rehabilitation of KpeUnes Using Fiber-reinforced Polymer (FRP) Composites 

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