Volume 17, Issue 2 (Journal of Iranian Ceramic Society 2021)                   Jicers 2021, 17(2): 9-16 | Back to browse issues page

XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Jamali Shoraki H, Asadi S, Moosavi A. Preparation and evaluation of geopolymer composites containing alumina particles at ambient temperature and after heating. Jicers 2021; 17 (2) :9-16
URL: http://jicers.ir/article-1-326-en.html
, a-moosavi@srbiau.ac.ir
Abstract:   (2409 Views)
In this research, geopolymer composites were prepared using metakaolin along with silica fume and potassium hydroxide as alkaline activators and alumina particles. The effect of alumina particle size to achieve castable microstructure and their mechanical properties were investigated. Different Si:Al mole ratio (1.5, 2, 2.5 and 3) and K:Si mole ratio (0.20, 0.25, 0.33) were formulated and the strength was maximized at Si:Al=2.5 and K:Si=0.33. However, its deformation and porous microstructure at high temperatures greatly reduced dimensional stability and strength. Microstructural properties and mechanical strength of samples sintered at 600, and 1000 oC after heating and at environmental conditions were studied and significant changes in the microstructure and strength of samples were observed. Sintering in the presence of the liquid phase caused the pores to collapse, creating a strong bond between the particles and increasing the density at 1000oC.
Full-Text [PDF 1059 kb]   (328 Downloads)    
Type of Study: Research | Subject: Ceramics used in the Environment, Water and Energy
Received: 2021/09/18 | Accepted: 2021/10/26

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.