-
- Home
- Journals
- Bulletin of Materials Science
-
M FADIL
Articles written in Bulletin of Materials Science
-
-
Volume 44 All articles Published: 13 May 2021 Article ID 0138
Optimization of compressive strength of fly ash-based geopolymers using central composite design
G MOUTAOUKIL S ALEHYEN I SOBRADOS M FADIL M TAIBI
In this study, fly ash-based geopolymers (FAG$_s$) were prepared by using fly ash (FA) as a source of aluminosilicates and a mixture of sodium hydroxide and sodium silicate as an alkaline activator. This study aims at optimization of compressive strength of FAG tested after 7 and 28 curing days, using the central composite design. Two factors that mainly affected the compressive strengths of the samples were selected: sodium silicate to sodium hydroxide ratio (three levels 1.5, 2.5 and 3.5) and FA/alkaline solution ratio (three levels 1.5, 2.5 and 3.5). The prepared geopolymers were characterized using several analytical methods, such as X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy with energy dispersive X-ray analyses. The optimum compressive strength obtained was 32 MPa with Na$_2$SiO$_3$/NaOH ratio = 2.5 and solid/liquid ratio = 2.5.
-
-
Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
-
Bulletin of Materials Science | News
-
Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
-