<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Geopolymer concrete (GPC) is an environmentally friendly material in the sense that it uses industrial by-products such as ground granulated blast furnace slag (GGBS) and fly ash (FA), which are activated by an alkaline solution. This paper presents an experimental investigation concerning the strength of the GPC and its relation to a new parameter called the ‘Binder Index (BI)’. The parameters considered in the investigation include GGBS to fly ash ratios (0.25 0.43, 0.67, 1.0, 1.5, and 2.3) and the molarity of the alkaline activator (6, 8, 10, and 12). The binder index combines the effect of the GGBS to the fly ash ratio and the molarity of the alkaline activator. The results have shown that the strength of the GPC is significantly influenced by varying the binder index. The results indicate that a nonlinear relation exists between the binder index and the compressive strength of the GPC and the binder index and the modulus of rupture.</p></abstract>

Geopolymer concrete (GPC) is an environmentally friendly material in the sense that it uses industrial by-products such as ground granulated blast furnace slag (GGBS) and fly ash (FA), which are activated by an alkaline solution. This paper presents an experimental investigation concerning the strength of the GPC and its relation to a new parameter called the ‘Binder Index (BI)’. The parameters considered in the investigation include GGBS to fly ash ratios (0.25 0.43, 0.67, 1.0, 1.5, and 2.3) and the molarity of the alkaline activator (6, 8, 10, and 12). The binder index combines the effect of the GGBS to the fly ash ratio and the molarity of the alkaline activator. The results have shown that the strength of the GPC is significantly influenced by varying the binder index. The results indicate that a nonlinear relation exists between the binder index and the compressive strength of the GPC and the binder index and the modulus of rupture.

The Binder Index – A Parameter That Influences the Strength of Geopolymer Concrete

Slovak Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Geopolymer concrete (GPC) is an environmentally friendly material in the sense that it uses industrial by-products such as ground granulated blast furnace slag...

The Binder Index – A Parameter That Influences the Strength of Geopolymer Concrete

Publicado en línea: 06 abr 2019

Páginas: 32 - 38

DOI: https://doi.org/10.2478/sjce-2019-0005

Palabras clave
Geopolymer, Concrete, Strength, GGBS, Fly ash, Binder index

© 2019 Rama Seshu D et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The Binder Index – A Parameter That Influences the Strength of Geopolymer Concrete

Publicado en línea: 06 abr 2019

Páginas: 32 - 38

DOI: https://doi.org/10.2478/sjce-2019-0005

Palabras claveGeopolymer, Concrete, Strength, GGBS, Fly ash, Binder index

© 2019 Rama Seshu D et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Palabras clave
Geopolymer, Concrete, Strength, GGBS, Fly ash, Binder index