Results 11 to 20 of about 33,643 (230)

The influence of thermodynamic parameters on alkaline activator of geopolymers and structure of geopolymers [PDF]

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2021
Thermodynamic parameters (densities, viscosities, speed of sound, and refractive index) of four series of alkaline activators were determined over the temperature range from 15 to 60 °C for the process of geopolymerization. Mixtures of Na2SiO3and NaOH of different molar concentrations (from 2M to 8M with step 2) were used as an alkaline activator.
Ivanović, Marija   +6 more
openaire   +8 more sources

Durability of geopolymers and geopolymer concretes: A review

open access: yesREVIEWS ON ADVANCED MATERIALS SCIENCE, 2021
Abstract Geopolymers are green materials with three-dimensional silicon and aluminum tetrahedral structures that can be serving as environmentally friendly construction materials and therefore have the potential to contribute to sustainable development.
Lingyu Tian   +3 more
openaire   +2 more sources

Geopolymer coating paste on concrete for photocatalytic performance [PDF]

open access: yes, 2021
Construction materials mainly used Portland cement as raw materials mainly caused global warming effect around the world. This article report a review on a research work carried out on the use of geopolymer coating on the concrete surface with catalyst
Abd Razak, Rafiza   +3 more
core   +1 more source

Assessment of Geopolymer Concrete for Underwater Concreting Properties [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
For ages, concrete has been used to construct underwater structures. Concrete laying underwater is a very complex procedure important to the success or failure of underwater projects.
Fakhryna Hannanee Ahmad Zaidi   +6 more
doaj   +1 more source

Evaluation of the Effect of Silica Fume on Amorphous Fly Ash Geopolymers Exposed to Elevated Temperature

open access: yesMagnetochemistry, 2021
The properties of amorphous geopolymer with silica fume addition after heat treatment was rarely reported in the geopolymer field. Geopolymer was prepared by mixing fly ash and alkali activator. The silica fume was added in 2% and 4% by weight.
Ong Huey Li   +10 more
doaj   +1 more source

Micromechanical Modeling of Polyamide 11 Nanocomposites Properties using Composite Theories [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The use of organically modified clays as nano-reinforcement in polymer matrices is widely investigated owing to their remarkable reinforcement at low filler loading.
Khairul Anwar Abdul Halim   +5 more
doaj   +1 more source

Low Cost, Robust, Environmentally Friendly Geopolymer–Mesoporous Carbon Composites for Efficient Solar Powered Steam Generation [PDF]

open access: yes, 2018
High-efficiency, environment friendly, renewable energy-based methods of desalination represent attractive and potentially very powerful solutions to the long-standing problem of global water shortage.
Bae   +57 more
core   +1 more source

Encapsulation of Cs/Sr contaminated clinoptilolite in geopolymers produced from metakaolin [PDF]

open access: yes, 2015
The encapsulation of caesium (Cs) and strontium (Sr) contaminated clinoptilolite in Na and K based metakaolin geopolymers is reported. When Cs or Sr loaded clinoptilolite is mixed with a metakaolin geopolymer paste, the high pH of the activating solution
Bensted, J   +6 more
core   +1 more source

A Prefatory Sustainability Assessment of One-Part Geopolymers [PDF]

open access: yesArchives of Metallurgy and Materials
This study investigated the sustainability aspect of the fly ash (FA)-based one-part geopolymers (OPGs) with various combinations and amount of alkali activators (AA).
Ooi Wan-En   +6 more
doaj   +1 more source

Influence of size reduction of fly ash particles by grinding on the chemical properties of geopolymers [PDF]

open access: yes, 2018
Chemical properties of geopolymers were evaluated from the reduction of fly ash particle size by grinding. X-ray diffraction determined that at early curing ages new crystalline phases appear in the matrix of the geopolymer and they remain for 28 days ...
Arredondo Rea, Susana Paola   +6 more
core   +3 more sources

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