Phase Transformation of Kaolin-Ground Granulated Blast Furnace Slag from Geopolymerization to Sintering Process

Noorina Hidayu Jamil; Mohd. Mustafa Al Bakri Abdullah; Faizul Che Pa; Mohamad Hasmaliza; Wan Mohd Arif W. Ibrahim; Ikmal Hakem A. Aziz; Bartłomiej Jeż; Marcin Nabiałek

doi:10.3390/magnetochemistry7030032

Magnetochemistry (Feb 2021)

Phase Transformation of Kaolin-Ground Granulated Blast Furnace Slag from Geopolymerization to Sintering Process

Noorina Hidayu Jamil,
Mohd. Mustafa Al Bakri Abdullah,
Faizul Che Pa,
Mohamad Hasmaliza,
Wan Mohd Arif W. Ibrahim,
Ikmal Hakem A. Aziz,
Bartłomiej Jeż,
Marcin Nabiałek

Affiliations

Noorina Hidayu Jamil: Center of Excellence Geopolymer and Green Technology, Universiti Malaysia Perlis, Kangar 01000, Perlis, Malaysia
Mohd. Mustafa Al Bakri Abdullah: Center of Excellence Geopolymer and Green Technology, Universiti Malaysia Perlis, Kangar 01000, Perlis, Malaysia
Faizul Che Pa: Center of Excellence Geopolymer and Green Technology, Universiti Malaysia Perlis, Kangar 01000, Perlis, Malaysia
Mohamad Hasmaliza: Biomaterial Research Niche Group, School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, Malaysia
Wan Mohd Arif W. Ibrahim: Center of Excellence Geopolymer and Green Technology, Universiti Malaysia Perlis, Kangar 01000, Perlis, Malaysia
Ikmal Hakem A. Aziz: Center of Excellence Geopolymer and Green Technology, Universiti Malaysia Perlis, Kangar 01000, Perlis, Malaysia
Bartłomiej Jeż: Department of Physics, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland
Marcin Nabiałek: Department of Physics, Częstochowa University of Technology, Al. Armii Krajowej 19, 42-200 Częstochowa, Poland

DOI: https://doi.org/10.3390/magnetochemistry7030032
Journal volume & issue: Vol. 7, no. 3
p. 32

Abstract

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The main objective of this research was to investigate the influence of curing temperature on the phase transformation, mechanical properties, and microstructure of the as-cured and sintered kaolin-ground granulated blast furnace slag (GGBS) geopolymer. The curing temperature was varied, giving four different conditions; namely: Room temperature, 40, 60, and 80 °C. The kaolin-GGBS geopolymer was prepared, with a mixture of NaOH (8 M) and sodium silicate. The samples were cured for 14 days and sintered afterwards using the same sintering profile for all of the samples. The sintered kaolin-GGBS geopolymer that underwent the curing process at the temperature of 60 °C featured the highest strength value: 8.90 MPa, and a densified microstructure, compared with the other samples. The contribution of the Na2O in the geopolymerization process was as a self-fluxing agent for the production of the geopolymer ceramic at low temperatures.

Published in Magnetochemistry

ISSN: 2312-7481 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: http://www.mdpi.com/journal/magnetochemistry

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