Parametric study on sustainable geopolymer concrete
by Sanghamitra Jena; Ramakanta Panigrahi
International Journal of Sustainable Materials and Structural Systems (IJSMSS), Vol. 3, No. 3/4, 2018

Abstract: The main cause of global warming generates from cement manufacturing industries. In order to reduce green house gas emission, development of alternative of cement is the main challenge. The industrial by-product fly ash (FA) which was rich in silica and alumina activated with sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) solution produced a binder. This was combined with natural coarse aggregate and fine aggregate to produce geopolymer concrete (GPC). This paper presents the experimental investigations on the fresh and hardened properties of GPC mix. Fresh concrete properties such as workability and hardened concrete properties like compressive strength (CS), split tensile strength (STS), flexural strength (FS), density and water absorption were investigated. Effect of sulphate, acid, chlorides on the compressive strength and weight were also studied. The results indicated that GPC could withstand the acidic environment. Behaviour of CS of GPC mixes were confirmed by the SEM images.

Online publication date: Wed, 09-Oct-2019

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