CFRP Enabled Novel Approach to Strengthen the Concrete Structures

Abstract

Concrete structures are popular infrastructure past few decades. A large number of concrete structure is constructed annually all over the world. After a certain period of time these structures get deteriorated. Rehabilitation or restoration required strengthening of these structures for safe usage. There are various materials and technique available in the market for restoration work, but these methods increases structural load and reduces clear space. It is a great invention of Carbon Fiber Reinforced Polymer (CFRP) material to repair the old structure. It increases the life of the structure. CFRP contain properties like high tensile strength, light weight and flexible. In this paper we inspect the performance of CFRP wrapped concrete with conventional concrete. CFRP wrapped to concrete grade M25 & M30 in the form of strips at 20, 40, 60, 80 and 100 percent of the applicable area of structure. Various test like Compressive test, Split tensile test and Flexural test were conducted and properly analyzed for better results. Various strength parameters are examined of prepared samples. By these results it can conclude that wrapping CFRP over deteriorated structure also increase their strength in a similar manner without increasing self-weight of structure.