Show simple item record

dc.contributor.authorNath, Pradip
dc.contributor.authorSarker, Prabir
dc.contributor.editorNot listed
dc.identifier.citationNath, Pradip and Sarker, Prabir K. 2012. Properties of fly ash based geopolymer for curing at ambient temperature, in Proceedings of the 2012 Convention and National Bridge Conference, Sep 29-Oct 2012. Nashville, Tennessee: Precast/Prestressed Concrete Institute.

Geopolymer concrete is a promising material with regard to precast construction for the ease of parametric and curing control. Most of the studies available in the literature used heat curing to demonstrate the properties of geopolymer mixture. This study aimed to achieve fly ash-based geopolymer suitable for ambient curing condition and eliminate energy consuming heat curing process. Class F fly ash was used as the base material which was reacted by sodium hydroxide and sodium silicate solutions. Ground granulated blast furnace slag (GGBFS) and calcium hydroxide (CH) was added in different proportions to the mixture. Setting times of geopolymer pastes and compressive strength after curing at 20-23°C were investigated. Results were compared with a control geopolymer mixture designed with fly ash alone as the binder. Inclusion of additives helped achieve setting time and compressive strength comparable to those of ordinary Portland cement (OPC). Setting time and compressive strength of geopolymers varied with the variation of alkaline activator to fly ash ratio. Generally, fly ash blended with slag or calcium hydroxide influenced the properties of geopolymer concrete cured at ambient temperature.

dc.publisherPrecast/Prestressed Concrete Institute
dc.subjectfly ash
dc.subjectsetting time
dc.subjectambient curing
dc.titleProperties of fly ash based geopolymer for curing at ambient temperature
dc.typeConference Paper
dcterms.source.titleProceedings of the 2012 Convention and National Bridge Conference
dcterms.source.seriesProceedings of the 2012 Convention and National Bridge Conference
dcterms.source.conference2012 Convention and National Bridge Conference
dcterms.source.conference-start-dateSep 29 2012
dcterms.source.conferencelocationNashville, Tennessee
dcterms.source.placeChicago, IL
curtin.accessStatusFulltext not available

Files in this item


This item appears in the following Collection(s)

Show simple item record