Strengthening of Beams Using Glass Fiber Reinforced Polymer (GFRP) laminate

  Sameer Shrivastava,  A.Tiwari

Several existing reinforced concrete structures all over the entire world are in critical need of repair and rehabilitation because of deterioration due to various factors like venerable, improper maintenance, corrosion of steel reinforcement, marginal design, poor construction, use of inferior material, design demands due to increased service loads, exposure to harmful environments and damage in case of seismic events like earthquakes and improvement in design guidelines. The latest developments in the use of the superior composites in the construction industry for concrete structures in strengthening and rehabilitation are growing on the basis of requirements. The requirement for efficient strengthening and rehabilitation techniques of existing structures has resulted in the research and development of composite strengthening systems. Fiber- reinforced polymer (FRP) Composite application is an extremely efficient method in repairing and strengthening of structures which has become structurally weak over their life span. FRP composites systems of strengthening provide an economically viable substitute to conventional repair systems and materials. In the present study experimental investigation is carried out to study the flexural and shear behavior of Reinforced Concrete (RC) beams by using Glass Fiber Reinforced polymer laminate. Beams were strengthened with 1.2 mm Epoxy Bonded Glass Fiber Reinforced Polymer ((GFRP)) lamination using epoxy resins and tested to fail using a symmetrical two-point loading system. Strengthening of beam is done with different combinations of (GFRP) laminate. Total 9 beams of size 150 mm X 150 mm X 1000mm were casted initially out of which 3 beams were controlled beams and the rest 6 beams were strengthened with different combinations of (GFRP) laminate such as U-wrap, Bottom Wrap and Side U-wrap. The corresponding load and the corresponding deflection for each beams were recorded and the load deflection behavior of each beam was compared with that of their respective control beams.

Keywords- (GFRP), Epoxy material, Strengthening, Rehabilitation.

Unique Identification Number - IJEDR1803042
Page Number(s) - 231-239
Pubished in - Volume 6 | Issue 3 | August 2018
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Sameer Shrivastava,  A.Tiwari,   "Strengthening of Beams Using Glass Fiber Reinforced Polymer (GFRP) laminate", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.6, Issue 3, pp.231-239, August 2018, Available at :http://www.ijedr.org/papers/IJEDR1803042.pdf