• The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Shear Behavior of Geopolymer Concrete Beams Reinforced with Glass Fiber-Reinforced Polymer Bars

Author(s): G. B. Maranan, A. C. Manalo, B. Benmokrane, W. Karunasena, and P. Mendis

Publication: Structural Journal

Volume: 114

Issue: 2

Appears on pages(s): 337-348

Keywords: geopolymers; glass fiber-reinforced polymers (GFRP); shear; stirrups

Date: 3/1/2017

The shear behavior of geopolymer concrete beams reinforced with glass fiber-reinforced polymer (GFRP) bars and stirrups was investigated. Six short beams with a shear-span-to-effective-depth ratio (a/d) of 1.8 were cast: one with no stirrups, three with different stirrup spacing, one with less reinforcement, and one with steel stirrups. In addition, a slender beam (a/d = 4.7) with the same cross-sectional area was built to investigate the influence of a/d. Experimental results showed that the GFRP stirrups enhanced both the shear strength and deflection capacity of the beams by approximately 200%. The shear crack initiated at a higher load and with a finer crack width in the beam with narrower stirrup spacing. The short beam yielded higher shear strength than the slender beam with a similar transverse reinforcement ratio. The beams with GFRP stirrups yielded a shear strength and deflection capacity—including an analogous load deflection response—similar to that of the beam with steel stirrups.


Electronic Structural Journal


Please enter this 5 digit unlock code on the web page.