Characterization of Fly Ash and Metakaolin Blend Geopolymers under Ambient Temperature Condition

Autor:	Mohd Mustafa Al Bakri Abdullah, Liew Yun Ming, Siti Fatimah Azzahran Abdullah, Khairunnisa Zulkifly, Heah Cheng Yong, Andrei Victor Sandu
Rok vydání:	2019
Předmět:	Geopolymer chemistry.chemical_compound Materials science chemistry Chemical engineering Sodium hydroxide Phase (matter) Fly ash Sodium silicate Sillimanite Metakaolin Amorphous solid
Zdroj:	IOP Conference Series: Materials Science and Engineering. 551:012086
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/551/1/012086
Popis:	This paper presents a characterization of fly ash and metakaolin blend geopolymers of the optimize mix proportion of 10 M NaOH concentration mixed with the solid-to-liquid ratio of 1.2 and sodium silicate and sodium hydroxide ratio of 2.6. The combination of amorphous and crystalline phase in the fly ash (FA) and metakaolin (MK) blend geopolymers showed a positive effect on the resultant geopolymers. The formation of new crystalline phases which is sillimanite as presented by XRD analysis. Fly ash and metakaolin blend geopolymers showed the presence of geopolymer bonding at around 1390 cm-1 and 960 cm-1. This paper discloses effect of blending fly ash and metakaolin in the synthesis promotes the continual hydration of the geopolymers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ac63dcbad6d7dea7bb517bb3e585863 https://doi.org/10.1088/1757-899x/551/1/012086 Zobrazit plný text záznamu