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Rheological Behavior of Geopolymer Mortar with Fly Ash, Slag and Their Blending

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Advances in Structural Technologies

Part of the book series: Lecture Notes in Civil Engineering ((LNCE,volume 81))

Abstract

In the present paper, an attempt has been made to study the rheological behavior of geopolymer mortar made with fly ash, ground granulated blast furnace slag (slag) and their blending (1:1) as source materials. NaOH solution was used as an alkaline activator. The molar concentrations of the alkaline activator used in the present study were 4, 8, 12 and 14.5 M. For the preparation of mortar, the ratio of source material to sand was kept constant at 1:3. Three different ratios of activator to binder were considered in the present experimental investigation. Experiments were conducted by a rotational viscometer. It was observed that the degree of thixotropy of the slag-based geopolymer mortar reduces after the addition of fly ash. Down curve of geopolymer mortar followed the Bingham model with good accuracy with and without blending. Rheological parameters of slag-based mortar reduced significantly after blending with fly ash.

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Authors and Affiliations

  1. Department of Civil Engineering, National Institute of Technology Silchar, Silchar, India, 788010

    Biswajit Roy & Aminul Islam Laskar

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  1. Biswajit Roy
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  2. Aminul Islam Laskar
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Correspondence to Biswajit Roy .

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Editors and Affiliations

  1. Swansea University, Wales, UK

    Sondipon Adhikari

  2. Indian Institute of Technology Guwahati, Guwahati, Assam, India

    Anjan Dutta

  3. National Institute of Technology Silchar, Silchar, Assam, India

    Satyabrata Choudhury

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Roy, B., Laskar, A.I. (2021). Rheological Behavior of Geopolymer Mortar with Fly Ash, Slag and Their Blending. In: Adhikari, S., Dutta, A., Choudhury, S. (eds) Advances in Structural Technologies. Lecture Notes in Civil Engineering, vol 81. Springer, Singapore. https://doi.org/10.1007/978-981-15-5235-9_8

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  • DOI: https://doi.org/10.1007/978-981-15-5235-9_8

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-5234-2

  • Online ISBN: 978-981-15-5235-9

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