Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 358, Issue 3, Pages 620-624Publisher
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2011.11.006
Keywords
Microstructure; Geopolymer composites; Elevated temperature; Weight loss; Polycondensation
Funding
- Industrial Key Project of Science and Technology of Shaanxi Province [2010K01-080]
- State Key Laboratory of Architecture Science and Technology in West China (XAUAT), Xi'an University of Architecture and Technology [10KF05]
Ask authors/readers for more resources
The microstructural and strength developments of alkali-activated metakaolin (MK)/granulated blast furnace slag (GBFS) based geopolymer reinforced by resin were studied after exposure to elevated temperatures. The XRD and SEM results indicated that the geopolymer and composite maintained original structure characteristics and did not have any new crystalline phase generated at elevated temperatures from 150 to 600 degrees C, while new crystalline phases and morphology deterioration occurred at 850 degrees C. The incorporation of a little amount of resin was able to improve effectively the compressive and flexural strengths of geopolymer. The geopolymer composite was via a thermal reaction mechanism of free water evaporation, dehydration in matrix, resin pyrolysis and new phase generation after exposure to elevated temperatures from 150 to 850 degrees C. A small amount of volume shrinkage demonstrated that the geopolymer and composites showed remarkable heat resistance. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available