13 - Case studies

Abstract

Currently, the information regarding the durability and long-term loading characteristics of composite materials used in the construction industry must be obtained from case studies of actual structural systems exposed to their particular environmental conditions. To understand the results of case studies, there must be detailed information on the type of materials used, their manufacturing methods, their strength and stiffness characteristics, the type of environment to which they are exposed, and the length of exposure. This chapter presents the case studies that involve the composites made from carbon fiber, glass fiber, or aramid fiber in a matrix of epoxy or vinylester polymer. Structural members manufactured more than 10 years ago were fabricated using isophthalic polyester resins. Currently, epoxy or vinylester polymers and carbon, aramid or glass fiber materials are invariably used to rehabilitate and to retrofit reinforced, prestressed concrete, metallic systems and timber structures. The chapter discusses the various manufacturing systems that have been used in the case studies.