Sulphate resistance of slag blended fly ash based geopolymer concrete
MetadataShow full item record
Inclusion of ground granulated blast furnace slag (GGBFS) together with fly-ash can have significant effects on the development of strength and durability properties of geopolymer concrete when cured at normal temperature. To study the effect of GGBFS in fly ash based geopolymer concrete, four different geopolymer mixtures suitable for curing at ambient temperature and an ordinary Portland cement concrete were used. A combination of sodium hydroxide and sodium silicate alkaline activator was used to react with fly ash and GGBFS. GGBFS was added as 10% and 20% of the total binder. The durability of GGBFS blended fly ash based geopolymer concrete in sulphate environment was tested. The changes in weight, length and compressive strength due to exposure in sodium sulphate solution for different periods of time were determined. The test results demonstrate that GGBFS blended fly ash based geopolymer concrete cured at normal temperature has good resistance to sulphate attack. In general, inclusion of GGBFS with fly ash in geopolymer concrete improved strength and performed satisfactorily in sulphate environment when cured in ambient temperature.
Showing items related by title, author, creator and subject.
Nath, Pradip; Sarker, Prabir (2015)Fly ash based geopolymer is an emerging low-emission binder for concrete. Recent studies have shown that the properties of geopolymers are similar to those of the OPC binder traditionally used for concrete. Most previous ...
The effects of ground granulated blast-furnace slag blending with fly ash and activator content on the workability and strength properties of geopolymer concrete cured at ambient temperatureDeb, Partha; Nath, Pradip; Sarker, Prabir (2014)Inclusion of ground granulated blast-furnace slag (GGBFS) with class F fly-ash can have a significant effect on the setting and strength development of geopolymer binders when cured in ambient temperature. This paper ...
Sarker, Prabir; Nath, Pradip (2014)Recent studies have shown that the properties of emerging low-emission geopolymer binders are similar or superior to those of the OPC binder traditionally used for concrete. Most of the previous studies in literature ...