Results 21 to 30 of about 16,734 (232)

Optimization of Geopolymer Cement Production Technology

open access: yes, 2022
Around 4 billion tonnes of Portland cement are manufactured worldwide every year. For every tonne of Portland cement produced, around 0.6 tonnes of CO2 are released to the atmosphere. This leads to an annual contribution of approximately 8% of the global CO2 anthropogenic emissions.
Segura, Isabel, , Pol
openaire   +3 more sources

Drying shrinkage behavior of geopolymer mortar based on kaolinitic coal gangue

open access: yesCase Studies in Construction Materials, 2023
The coal industry generated tons of waste over the years of mineral extraction, and the waste disposal leads to soil and air pollution caused by acid mine drainage and spontaneous combustion.
Bruna Juvêncio Frasson   +1 more
doaj   +1 more source

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

open access: yes, 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   +7 more
core   +2 more sources

A review in geopolymer binder with dry mixing method (geopolymer cement) [PDF]

open access: yesAIP Conference Proceedings, 2017
This paper reviews and explains the potential of more applicable geopolymer binder for use. This method is called: “Dry Mixing Method of Geopolymer Binder-Cement Geopolymer”. The mean is that the geopolymer binder is presented in a dry form (like cement powder), which is contains some solid alkali activator and pozzolan materials. How to use it exactly
Ridho Bayuaji   +3 more
openaire   +1 more source

Incorporation of cement bypass flue dust in fly ash and blast furnace slag-based geopolymer

open access: yesCase Studies in Construction Materials, 2018
This work utilizes cement kiln dust in fly ash and blast furnace slag-based geopolymer. Geopolymer cement was produced using different compositions of ground, granulated blast furnace slag with fly ash and cement bypass flue dust.
Mohamed E. Sultan   +4 more
doaj   +1 more source

Pore structure and dynamic mechanical properties of geopolymer cement soil based on nuclear magnetic resonance technique

open access: yesYantu gongcheng xuebao, 2021
To study the effects of curing age and metakaolin (MK) content on its pore structure and dynamic mechanical properties, the dynamic uniaxial impact compression tests on the geopolymer cement soil are carried out with the help of the split Hopkinson ...
MA Dong-dong 1, 2, 3, MA Qin-yong 1, 2, 3, HUANG Kun 1, 2, ZHANG Rong-rong 1, 2, 3
doaj   +1 more source

Mechanical performance of glass-based geopolymer matrix composites reinforced with cellulose fibers [PDF]

open access: yes, 2018
Glass-based geopolymers, incorporating fly ash and borosilicate glass, were processed in conditions of high alkalinity (NaOH 10-13 M). Different formulations (fly ash and borosilicate in mixtures of 70-30 wt% and 30-70 wt%, respectively) and physical ...
Bernardo, Enrico   +2 more
core   +2 more sources

Effect of cement and lime on strength and high-temperature resistance of class F and C fly ash-based geopolymer mortars

open access: yesJournal of Sustainable Construction Materials and Technologies, 2022
Geopolymers have advantages such as good high-temperature, acid and sulfate resistance. Recently, researchers have been working on cement-geopolymer hybrid materials.
Işılay Özkul   +2 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

Uniaxial compressive strength of geopolymer cement for oil well cement [PDF]

open access: yesJournal of Petroleum Exploration and Production Technology, 2019
AbstractEnsuring oil-well-integrity is one of the challenging tasks when cementing is designed. It has been well established that cement tends to degrade when exposed to a corrosive environment and at elevated temperatures. This paper presents the results of the uniaxial compressive strength of the qualified mixes of geopolymer cement containing fly ...
Raja Rajeswary Suppiah   +3 more
openaire   +2 more sources

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