Results 31 to 40 of about 14,729 (212)

Enhanced reactivity of geopolymers produced from fluidized bed combustion bottom ash

South African Journal of Chemical Engineering, 2020
In this study, waste bottom ash obtained from fluidized bed combustion of low-grade South African coal in a bubbling fluidized bed reactor was used to produce geopolymers.
Tobi Stephen Osholana, Mbuso Kingdom Dludlu, Bilainu Oboirien, Rotimi Sadiku   +3 more
doaj   +1 more source

The Use of Geopolymers for the Disposal of Asbestos-containing Materials [PDF]

MATEC Web of Conferences, 2020
Asbestos is widely known as a hazardous material and can contribute to many diseases. Its removal and neutralization are complicated, it requires proper preparation and the use of appropriate technology.
Łach Michał, Lichocka Katarzyna, Hebdowska-Krupa Maria, Lin Wei-Ting, Korniejenko Kinga   +4 more
doaj   +1 more source

The influence of rice husk ash addition on the properties of metakaolin-based geopolymers [PDF]

, 2016
This paper investigates the replacement of metakaolin (MK) with rice husk ash (RHA) in the production of alkali-activated binders or geopolymers. The influence of the RHA addition on compressive and flexural strength, as well as water absorption and ...
Adam F., Antonio Feteira, Bakharev T., Bakharev T., Barbosa V.F., Chandrasekhar S., Chen J-H., Cordeiro G.C., Davidovits J., Detphan S., Duxson P., Fernandez-Jimenez A., Fernández-Jiménez A., Fletcher R.A., Giorgio Schileo, He J., Jaarsveld J.G., Javed S. H., Kani E. N., Liou T-H., Miller F. A., Nazari A., Palomo A, Palomo A., Paulo H. R. Borges, Provis J. L., Rovnaník P., Sagoe-Crentsil K., Saikia B. J., Shi C., Songpiriyakij S., Tulio H. Panzera, Van Deventer J. S. J., Van Deventer J.S., van Deventer J.S.J., Vitor A. Nunes   +35 more
core   +2 more sources

Investigation of un-calcined coal gangue together with ground granulated blast furnace slag and fly ash to ambient-curing production high-strength geopolymer

Journal of Materials Research and Technology, 2023
Aim of this work is to exploit an ambient-curing method to produce high-strength geopolymers by applying un-calcined coal gangue (G). An optimized alkaline activator solution with a mixture proportion of 1.2 M, 8% AE, and 0.32 liquid-solid ratio was ...
Xingguo Feng, Ning Liu, Xiangyu Lu
doaj   +1 more source

Chemical aspects related to using recycled geopolymers as aggregates [PDF]

, 2018
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Despite extensive research ...
Andrew Heath, ASTM, De Pauw P, Gress DL, Juliana Calabria Holley, Kevin Paine, Kwan WH, Napoleana Anna Chaliasou   +7 more
core   +2 more sources

Mechanical properties and durability of fiber reinforced geopolymer composites: A review on recent progress

Engineering Reports, 2023
Geopolymer concrete has similar mechanical properties to ordinary Portland cement (OPC) concrete, and even better properties in high temperature, high corrosion environment.
Lingling Qin, Jiahao Yan, Mengya Zhou, Huai Liu, Aiguo Wang, Wei Zhang, Ping Duan, Zuhua Zhang   +7 more
doaj   +1 more source

The Effect of Red Mud Content on the Compressive Strength of Geopolymers under Different Curing Systems

Buildings, 2021
To maximize the utilization of red mud in geopolymers, a red mud–metakaolin (RM-MK) geopolymer and red mud–fly ash (RM-FA) geopolymer were prepared, respectively.
Tao Ai, Danni Zhong, Yao Zhang, Jingshan Zong, Xin Yan, Yanhui Niu   +5 more
doaj   +1 more source

Development and characterization of clinoptilolite-, mordenite-, and analcime-based geopolymers: A comparative study

Case Studies in Construction Materials, 2021
This study examines the development of geopolymers from clinoptilolite, mordenite, and analcime and compares the properties of the resulting green-binding materials. Sodium silicate and sodium hydroxide solutions were used as activators.
Didem Güngör, Sevgi Özen
doaj   +1 more source

Functional glass-ceramic foams from \u2018inorganic gel casting\u2019 and sintering of glass/slag mixtures [PDF]

, 2018
The here described investigation was essentially aimed at exploring the chemical stabilization and reutilization of iron-rich slag from copper metallurgy, by the manufacturing of glass-ceramic foams.
Bernardo, Enrico, Desideri, Daniele, Rinc\uf3n, Acacio   +2 more
core   +1 more source

Comprehensive review of the properties of fly ash-based geopolymer with additive of nano-SiO2

Nanotechnology Reviews, 2022
Nano-SiO2 is a non-toxic, tasteless, and pollution-free material with hydroxyl groups that facilitate the adsorption of water on its surface. Nano-SiO2 is characterized by small particle size, high purity, low density, large surface area, and good ...
Han Qiaoyi, Zhang Peng, Wu Jingjiang, Jing Yuting, Zhang Deng, Zhang Tianhang   +5 more
doaj   +1 more source