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Residual properties of alkali-activated slag concrete exposed to elevated temperatures

Residual properties of alkali-activated slag concrete exposed to elevated temperatures This paper attempted to study the alkali-activated (AA) binder consisting of 94% of ground granulated blast furnace slag (GGBFS) and 6% of blended powder of alkali metal hydroxide and metal sulfate, which acted as an activator.Design/methodology/approachSeveral concrete specimens (cubes, cylinders and prisms), which were casted using AA binders, were further tested for mechanical properties after exposure to elevated temperatures of 200 °C, 400 °C, 600 °C and 800 °C. Additionally, to understand the structural behavior in uniaxial compressive load, reinforced concrete short columns were cast, cured and tested at ambient temperature as well as after exposure to 300 °C, 600 °C and 900 °C, to know the residual strength after exposure to elevated temperature.FindingsThe findings for the residual strength of alkali-activated slag binder concrete (AASBC) indicated a substantial agreement with the results obtained for the residual strength of Portland slag cement (PSC) concrete, thereby showing the effectiveness of binder when used as a replacement of cement.Originality/valueThe study clearly indicates that the binder developed is an effective approach for the 100% replacement of cement in the concrete. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Structural Fire Engineering Emerald Publishing

Residual properties of alkali-activated slag concrete exposed to elevated temperatures

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Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
2040-2317
DOI
10.1108/jsfe-05-2021-0021
Publisher site
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Abstract

This paper attempted to study the alkali-activated (AA) binder consisting of 94% of ground granulated blast furnace slag (GGBFS) and 6% of blended powder of alkali metal hydroxide and metal sulfate, which acted as an activator.Design/methodology/approachSeveral concrete specimens (cubes, cylinders and prisms), which were casted using AA binders, were further tested for mechanical properties after exposure to elevated temperatures of 200 °C, 400 °C, 600 °C and 800 °C. Additionally, to understand the structural behavior in uniaxial compressive load, reinforced concrete short columns were cast, cured and tested at ambient temperature as well as after exposure to 300 °C, 600 °C and 900 °C, to know the residual strength after exposure to elevated temperature.FindingsThe findings for the residual strength of alkali-activated slag binder concrete (AASBC) indicated a substantial agreement with the results obtained for the residual strength of Portland slag cement (PSC) concrete, thereby showing the effectiveness of binder when used as a replacement of cement.Originality/valueThe study clearly indicates that the binder developed is an effective approach for the 100% replacement of cement in the concrete.

Journal

Journal of Structural Fire Engineering – Emerald Publishing

Published: Feb 15, 2023

Keywords: Ground granulated blast furnace slag; Alkali-activated binder; PSC concrete; Elevated temperature; Leftover strength; Reinforced concrete column

References

  • Effects of elevated temperatures on properties of concrete
    Arioz, O.
  • Effect of the hydration temperature on the microstructure of Class G cement: C-S-H composition and density
    Bahafid, S.; Ghabezloo, S.; Duc, M.; Faure, P.; Sulem, J.
  • Alkali activation of mortars containing different replacement levels of ground granulated blast furnace slag
    Bilim, C.; Atis, C.D.
  • Effect of elevated temperature on the mechanical properties of concrete produced with finely ground pumice and silica fume
    Demirel, B.; Kelestemur, O.
  • Effect of grinding on strength and durability of GGBFS-based concrete
    Karthikeyan, B.; Dhinakaran, G.
  • Effect of temperature on stress–strain behaviour of pre-damaged confined concrete
    Kumar, V.
  • Mechanical behavior of non-silicate based alkali-activated ground granulated blast furnace slag
    Kumar, V.; Kumar, A.; Prasad, B.
  • Increasing the compressive strength of Portland cement concrete using flat glass powder
    Miranda Junior, E.J.P.D.; Leite Bezerra, H.D.J.C.; Politi, F.S.; Paiva, A.E.M.
  • Experimental study on mechanical properties of geopolymer concrete using GGBS
    Philip, A.; Mathew, A.
  • Properties of concrete containing ground granulated blast furnace slag (GGBFS) at elevated temperatures
    Siddique, R.; Kaur, D.
  • Properties and behavior of self-compacting concrete produced with GBFS and FA additives subjected to high temperatures
    Uysal, M.; Yilmaz, K.; Ipek, M.
  • Residual compressive behaviour of pre-heated high-performance concrete with blast–furnace–slag
    Xiao, J.; Xie, M.; Zhang, C.
  • Influence of high temperature on the properties of concretes made with industrial by-products as fine aggregate replacement
    Yuksel, I.; Siddique, R.; Ozkan, O.
  • Synthesis of calcium silicate hydrate in highly alkaline system
    Zhu, G.; Li, H.; Wang, X.; Li, S.; Hou, X.; Wu, W.; Tang, Q.