Effects of Ultrafine Fly Ash on Setting, Strength, and Porosity of Geopolymers Cured at Room Temperature
|dc.contributor.author||Deb, Partha Sarathi|
|dc.identifier.citation||Deb, P. and Sarker, P. 2017. Effects of Ultrafine Fly Ash on Setting, Strength, and Porosity of Geopolymers Cured at Room Temperature. Journal of Materials in Civil Engineering. 29 (2): 06016021.|
This paper presents the effects of ultrafine fly ash on setting, strength and porosity of geopolymer paste specimens cured at 20°C. Addition of ultrafine fly ash reduced setting time and improved compressive strength of geopolymers based on fly ash only or fly ash blended with 15% ground granulated blast-furnace slag (GGBFS) or 10% ordinary portland cement (OPC). With the addition of ultrafine fly ash, a reduction in porosity was observed by the mercury intrusion porosimetry (MIP) and a denser microstructure was observed by the scanning electron microscope (SEM) photographs. Thus, for room temperature curing conditions, a control on the setting time and improvements of strength and porosity of geopolymers could be achieved by varying the percentage of ultrafine fly ash.
|dc.publisher||American Society of Civil Engineers (ASCE)|
|dc.title||Effects of Ultrafine Fly Ash on Setting, Strength, and Porosity of Geopolymers Cured at Room Temperature|
|dcterms.source.title||Journal of Materials in Civil Engineering|
|curtin.department||Department of Civil Engineering|
|curtin.accessStatus||Fulltext not available|
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