Results 31 to 40 of about 7,891 (225)

Fly ash-based geopolymers: the relationship between composition, pore structure and efflorescence [PDF]

open access: yes, 2014
This study reports the observation of efflorescence in fly ash-based geopolymers. The efflorescence rate strongly depends on the activation conditions; at the same alkali content under ambient temperature curing, NaOH-activated geopolymers show less and ...
Zhang, Zuhua   +3 more
core   +1 more source

Performance of laterite-based geopolymers reinforced with sugarcane bagasse fibers

open access: yesCase Studies in Construction Materials, 2021
In this study, sugarcane bagasse fibres (SBF) were used as a sustainable alternative to reinforce laterite-based geopolymers. As geopolymers can be deemed an eco-friendly construction material, the sustainability of geopolymers can be further improved ...
Rachel Nkwaju Yanou   +5 more
doaj   +1 more source

LADLE FURNACE SLAG REPLACEMENT ON THE FLEXURAL STRENGTH OF THIN FLY ASH GEOPOLYMER [PDF]

open access: yesEuropean Journal of Materials Science and Engineering, 2020
This article reports the investigation on the effect of ladle furnace slag replacement on the flexural strength of thin fly ash-based geopolymer. The thin fly ash/slag geopolymers were prepared with the replacement of various percentages of ladle furnace
Ng YONG-SING   +4 more
doaj   +1 more source

Thermal Resistance Variations of Fly Ash Geopolymers: Foaming Responses [PDF]

open access: yes, 2017
This paper presents a comparative study of the characteristic of unfoamed and foamed geopolymers after exposure to elevated temperatures (200–800 °C). Unfoamed geopolymers were produced with Class F fly ash and sodium hydroxide and liquid sodium silicate.
Heah Cheng-Yong   +3 more
core   +5 more sources

Synthesis of clay geopolymers using olive pomace fly ash as an alternative activator. Influence of the additional commercial alkaline activator used

open access: yesJournal of Materials Research and Technology, 2021
In this research, the use of olive pomace fly ash (OPFA) as an alkaline source for the activation of calcined clays (CC) from Bailén (Jaén, Spain) was studied. The optimal composition was obtained for 70 wt % CC and 30 wt % OPFA. The physical, mechanical
M.A. Gómez-Casero   +4 more
doaj   +1 more source

Optimization of red brick dust-based geopolymers for use in sustainable construction [PDF]

open access: yes, 2023
With the rising carbon dioxide levels affecting climate change, sustainable and eco-friendly alternatives to ordinary portland cement (OPC) are being investigated. To reduce the overall environmental impact, industrial waste products, such as fly ash and
Black, Cody
core  

Study on Structure and Properties of Kaolin Composites- based Geopolymers

open access: yesChemical Engineering Transactions, 2018
In order to study the pore structure and corrosion resistance of kaolin composite-based geopolymers, in this paper, kaolin composite-based geopolymers were prepared by replacing fly ash with 15%, 25%, 35%, 50%, and 60% kaolin.
Jie Wen, Ying Zhou, Xuchu Ye
doaj   +1 more source

Sustainable inorganic Binders and Their Applications in Building Engineering: A Green Alternative to Ordinary Portland Cement [PDF]

open access: yes, 2012
In the last decades, the building materials and construction industry has been contributing to a great extent to generate a high impact on our environment.
Natali Murri, Annalisa <1982>
core   +1 more source

Geopolymers and Other Geosynthetics [PDF]

open access: yes, 2020
Geopolymers are applied to material classes that are chemically transformed from low crystallinity aluminusilicates to three-dimensional inorganic polymers (tectosilicates).

core   +1 more source

Synthesized Geopolymers Adsorb Bacterial Proteins, Toxins, and Cells

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
Pore-forming and hemolytic toxins are bacterial cytotoxic proteins required for virulence in many pathogens, including staphylococci and streptococci, and are notably associated with clinical manifestations of disease.
John Popovich   +10 more
doaj   +1 more source

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