CP40 is a FRP/concrete composite post, pole, or pile which matches the strength of traditional materials -- metal, wood, or concrete -- without sharing their vulnerability to corrosive factors in their site environments. CP40 consists of three components, namely, a hollow fiberglass-reinforced-plastic (FRP) tube, a concrete core, and a durable environmentally-neutral coating. The core and tube contribute compressive and tensile strength respectively to the structural element. Since the core is expanded in the tube, sufficient bond is produced for the two materials to act in a composite manner.
Fact Sheet ID Number
Composite Materials & Technologies
frp composite, concrete, construction material, cp40, pile
Date of this Version
ECT Team, Purdue, "CP40: FRP/Concrete Piles" (2007). ECT Fact Sheets. Paper 17.