Carbon-fiber-reinforced polymer (CFRP), is a fiber-reinforced polymer made with carbon fibers which is very strong and light. Over the past two decades it becomes an increasingly notable material used in structural engineering applications. With its potential benefits in construction, it has also proved itself cost-effective in a number of field applications strengthening concrete, masonry, steel, cast iron, and timber structures.
Retrofitting has become the increasingly dominant use of the material in civil engineering, and applications include increasing the load capacity of old structures (such as bridges) that were designed to tolerate far lower service loads than they are experiencing today, seismic retrofitting, and repair of damaged structures.
|Fig: A and B carbon laminate to beams and slabs.|
To protect a building from an extreme event, CFRP can be used to increase the bending capacity of walls or columns of threatened buildings. Now an anchor is used that embeds in the column or joint to make CFRP more effective. In that work, the anchors allow the CFRP to reach its full tension strength rather than separating from the concrete at only about half its strength.
Center (ERDC) explosives are detonated near CFRP-reinforced concrete slabs.