Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of GGBFS on setting, workability and early strength properties of fly ash geopolymer concrete cured in ambient condition
Highlights Fly ash geopolymer mixtures were designed adding GGBFS up to 30% of total binder. Test specimens were cured in ambient temperature (20–23°C) instead of heat curing. GGBFS enhanced early strength development at ambient condition. Workability and setting time reduced with increase of GGBFS and decrease of alkaline liquid.
Abstract Most of the previous works on fly ash-based geopolymers were on the properties of concrete hardened by heat curing, which is considered as a limitation for cast in situ applications at low ambient temperatures. This study aimed to achieve fly ash-based geopolymers suitable for curing without elevated heat. The results show that fly ash based geopolymer concrete for curing in ambient condition can be proportioned for desirable workability, setting time, and compressive strength using ground granulated blast-furnace slag (GGBFS) as a small part of the binder. Inclusion of GGBFS with Class F fly ash helped achieve setting time and compressive strength comparable to those of ordinary Portland cement (OPC).
Effect of GGBFS on setting, workability and early strength properties of fly ash geopolymer concrete cured in ambient condition
Highlights Fly ash geopolymer mixtures were designed adding GGBFS up to 30% of total binder. Test specimens were cured in ambient temperature (20–23°C) instead of heat curing. GGBFS enhanced early strength development at ambient condition. Workability and setting time reduced with increase of GGBFS and decrease of alkaline liquid.
Abstract Most of the previous works on fly ash-based geopolymers were on the properties of concrete hardened by heat curing, which is considered as a limitation for cast in situ applications at low ambient temperatures. This study aimed to achieve fly ash-based geopolymers suitable for curing without elevated heat. The results show that fly ash based geopolymer concrete for curing in ambient condition can be proportioned for desirable workability, setting time, and compressive strength using ground granulated blast-furnace slag (GGBFS) as a small part of the binder. Inclusion of GGBFS with Class F fly ash helped achieve setting time and compressive strength comparable to those of ordinary Portland cement (OPC).
Effect of GGBFS on setting, workability and early strength properties of fly ash geopolymer concrete cured in ambient condition
Nath, Pradip (Autor:in) / Sarker, Prabir Kumar (Autor:in)
Construction and Building Materials ; 66 ; 163-171
26.05.2014
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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