Comparison of capabilities

Composite repairs are often compared to Type B steel sleeves. As wUl be shown in this section, the applicability of composite repairs is most similar to that of Type A sleeves, whereas Type B sleeves have additional applicabUity over both composite repairs and Type A sleeves. 

Rehabilitation of Pipelines Using Fiber-reinforced Polymer (FRP) Conqrasites 

Type of defect Type A sleeves Composite repairs Type B sleeves 

Gouge of other metal loss on pipe body Yes Yes Yes  

Dent with stress concentrator on seam weld or pipe body Yes = = f Yes = f Yes 

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