Performance of hybrid rebars as longitudinal reinforcement in normal strength concrete

Title: Performance of hybrid rebars as longitudinal reinforcement in normal strength concrete
Author(s): B. Saikia, J. Thomas, A. Ramaswamy, K. S. Nanjunda Rao
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 38
Issue: 284
Issue date: 2005-12-01
Publication year: 2005
Pages: 857 - 864
Total Pages: 8
Nb references: 8
Language: English

Abstract: Although steel is most commonly used as a reinforcing material in concrete due to its competitive cost and favorable mechanical properties, the problem of corrosion of steel rebars leads to a reduction in life span of the structure and adds to maintenance costs.
Many techniques have been developed in recent past to resist corrosion (galvanizing, epoxy coating, etc.
) but none of the solution seems to be viable as a total solution to the corrosion problem.
Apart from the use of FRP rebars, hybrid rebars are also being tried to over come the problem of steel corrosion.
This paper evaluates the performance of hybrid rebars as longitudinal reinforcement in normal strength concrete beams.
Hybrid rebars used in this study essentially consists of GFRP strands of 2 mm diameter wound spirally on a mild steel core of 6 mm diameter.
GFRP stirrups have been used as shear reinforcement.
An attempt has been made to evaluate the flexural and shear performance of hybrid rebars in normal strength concrete with and without polypropylene fibers added to the concrete matrix.

Online publication: 2005-02-15
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14229