Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Galvanized Steel in Concrete: More Durable Structures Maintaining the Bond Length
AbstractThe main cause of the deterioration of concrete structures is the corrosion of their reinforcement. The use of galvanized steel rebars is a competitive solution to increase the service life of structures. The bond of galvanized rebars with concrete has been studied in recent years, but some of the results of different research on bond capacity are slightly contradictory. In this paper, a study of the surface geometry of traditional and galvanized rebars has been carried out to discover the influence of galvanizing on the bond capacity of reinforcement. Furthermore, the bond behavior of four reinforced concretes combining black and galvanized rebars along with ordinary portland cement (OPC) concrete and concrete containing blast furnace slag (BFS) has been assessed through pullout tests at different ages and limit states. The surface geometry of the rebars changed slightly because of galvanization. The bond tests at 7 days showed lower stresses when galvanized rebars and BFS were employed. At 28 days, similar anchorage lengths could be used for the design regardless of the type of reinforcement and concrete employed. However, slight differences were noticed depending on the limit states analyzed.
Galvanized Steel in Concrete: More Durable Structures Maintaining the Bond Length
AbstractThe main cause of the deterioration of concrete structures is the corrosion of their reinforcement. The use of galvanized steel rebars is a competitive solution to increase the service life of structures. The bond of galvanized rebars with concrete has been studied in recent years, but some of the results of different research on bond capacity are slightly contradictory. In this paper, a study of the surface geometry of traditional and galvanized rebars has been carried out to discover the influence of galvanizing on the bond capacity of reinforcement. Furthermore, the bond behavior of four reinforced concretes combining black and galvanized rebars along with ordinary portland cement (OPC) concrete and concrete containing blast furnace slag (BFS) has been assessed through pullout tests at different ages and limit states. The surface geometry of the rebars changed slightly because of galvanization. The bond tests at 7 days showed lower stresses when galvanized rebars and BFS were employed. At 28 days, similar anchorage lengths could be used for the design regardless of the type of reinforcement and concrete employed. However, slight differences were noticed depending on the limit states analyzed.
Galvanized Steel in Concrete: More Durable Structures Maintaining the Bond Length
2017
Aufsatz (Zeitschrift)
Englisch
BKL:
56.45
Baustoffkunde
Lokalklassifikation TIB:
535/6520/6525/xxxx