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STUDY ON BEHAVIOUR OF GEOPOLYMER CONCRETE COLUMN

Abstract

Geopolymer is an eco-friendly replacement of Ordinary Portland Cement and possess strength and durability similar to or greater than the conventional concrete. Geopolymer concrete is a combination of fly ash or GGBS or both along with hydroxide and silicate solutions. In this paper a combination of both fly ash and GGBS were used to make geopolymer concrete along with sodium hydroxide and sodium silicate solutions. This paper focuses on the study of reinforced geopolymer concrete columns. The objectives of this paper are to experimentally study the ultimate load and deflection of geopolymer columns with varying reinforcement under axial loading and eccentric loading. The experimental study included testing of six geopolymer concrete short columns. In addition the mechanical properties of geopolymer concrete were studied. The mechanical properties include compressive strength, and split tensile strength. The final results showed that Geopolymer concrete column with reinforcement percentage of 3.21% showed higher load capacity of 392 kN, minimum deflection of 4.35 mm and higher stiffness of 90.1 kN/m2.

SHIVA KUMAR K.K.V, M. PRAKASH AND SATYANARAYANAN K.S

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