Results 1 to 10 of about 17,040 (232)

Formation of one-part-mixing geopolymers and geopolymer ceramics from geopolymer powder [PDF]

open access: yesConstruction and Building Materials, 2017
Abstract Geopolymer powder prepared through pre-curing and pulverization showed great potential to produce one-part-mixing geopolymers as well as high flexural strength geopolymer ceramics. The one-part-mixing geopolymers were prepared by mixing geopolymer powder with water while the geopolymer ceramics were prepared by powder metallurgy and ...
Yun Ming Liew   +2 more
exaly   +2 more sources

Influence of Sintering Temperature on the Pore Structure of an Alkali-Activated Kaolin Based Geopolymer [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
Kaolin-based geopolymers are alternatives for producing high-strength ceramics for construction materials. Creating high-performing kaolin ceramics utilizing the regular technique requires a high handling temperature (higher than 1200°C).
M.I.I. Ramli   +5 more
doaj   +1 more source

Setting Time and after Setting Properties of High Calcium Fly Ash Geopolymers with Different Concentration of Sodium Hydroxide [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
Setting time in geopolymers is known as the time taken for the transition phase of liquid to solid of the geopolymer system in which is represented in the initial setting and final setting.
Rosnita Mohamed   +5 more
doaj   +1 more source

Properties and Morphology of Fly Ash Based Alkali Activated Material (AAM) Paste Under Steam Curing Condition [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
This paper details the properties, microstructures, and morphologies of the fly ash-based alkali-activated material (AAM), also known as geopolymers, under various steam curing temperatures.
Rafiza Abd Razak   +5 more
doaj   +1 more source

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

Silica Bonding Reaction on Fly Ash Based Geopolymer Repair Material System with Incorporation of Various Concrete Substrates [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
This paper presents an experimental investigation on the mechanical properties and microstructure of geopolymer repair materials mixed using fly ash (FA) and concrete substrates.
Mohd Mustafa Al Bakri Abdullah   +6 more
doaj   +1 more source

Flexural Properties of Thin Fly Ash Geopolymers at Elevated Temperature [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
This paper reports on the flexural properties of thin fly ash geopolymers exposed to elevated temperature. The thin fly ash geopolymers (dimension = 160 mm × 40 mm × 10 mm) were synthesised using12M NaOH solution mixed with designed solids-to-liquids ...
Yong-Sing Ng   +5 more
doaj   +1 more source

Optimization of Injection Moulding Process via Design of Experiment (DOE) Method based on Rice Husk (RH) Reinforced Low Density Polyethylene (LDPE) Composite Properties [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
Optimal parameters setting of injection moulding (IM) machine critically effects productivity, quality, and cost production of end products in manufacturing industries.
Haliza Jaya   +6 more
doaj   +1 more source

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

Effect of Silica Fume and Alumina Addition on the Mechanical and Microstructure of Fly Ash Geopolymer Concrete [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
This paper discussed the effect of the addition of silica fume (2 wt.% and 4 wt.%) and alumina (2 wt.% and 4 wt.%) on the properties of fly ash geopolymer concrete.
Fong Sue Min   +7 more
doaj   +1 more source

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