Results 41 to 50 of about 14,929 (211)

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

open access: yesCase 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

Compressive strength and hydrolytic stability of fly ash based geopolymers [PDF]

open access: yes, 2013
The process of geopolymerization involves the reaction of solid aluminosilicate materials with highly alkaline silicate solution yielding an aluminosilicate inorganic polymer named geopolymer, which may be successfully applied in civil engineering as ...
Blečić Dragoljub   +6 more
core   +1 more source

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

open access: yesNanotechnology 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   +5 more
doaj   +1 more source

Life cycle assessment of self-healing geopolymer concrete

open access: yesCleaner Engineering and Technology, 2021
Current construction developments are trending towards more sustainable practices with greener alternative materials such as geopolymers. Geopolymers are a class of cementitious materials based on inorganic polymers, which are promising substitutes for ...
Jerome Ignatius T. Garces   +4 more
doaj   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Preparation, characterization, electrical conductivity, and life cycle assessment of carbon nanofibers-reinforced Ecuadorian natural zeolite-based geopolymer composites

open access: yesHeliyon
Geopolymers are inorganic crosslinked polymers with much less carbon footprint than ordinary Portland cement. Geopolymers and geopolymer-based materials have superior mechanical and durability properties with extreme thermal and chemical resistance ...
Adriana Alvarado   +4 more
doaj   +1 more source

Low carbon building: Experimental insight on the use of fly ash and glass fibre for making geopolymer concrete [PDF]

open access: yes, 2017
Due to the environmental impacts resulting from the production of Ordinary Portland cement (OPC), the drive to develop alternative binders that can totally replace OPC is gaining huge consideration in the construction field.
Awoyera, P. O.   +3 more
core   +2 more sources

Innovative electrospun geopolymer/zeolite/PVA composite membranes

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Proposed scheme of gas adsorption mechanisms on electrospun geopolymer/zeolite/PVA composite membranes. Abstract Innovative electrospun poly(vinyl alcohol) (PVA)–geopolymer–zeolite 13X composite membranes were successfully fabricated and systematically characterized.
Mariana Schneider   +7 more
wiley   +1 more source

Effects of aggregates on the mechanical properties and microstructure of geothermal metakaolin-based geopolymers

open access: yesResults in Physics, 2018
Geothermal clay rich in kaolinite was first prepared into geopolymers in the preparation of alkali-activated cementitious binders (AACBs). Effects of silica sand and steel fiber aggregates on the microstructure and mechanical strength of the geothermal ...
Xing Li   +5 more
doaj   +1 more source

Properties of geopolymer binders prepared from milled pond ash [PDF]

open access: yes, 2017
Alkali-activated materials were prepared from pond ash from the Darkhan city (Mongolia) thermal power station. This ash contains about 60 wt % X-ray amorphous material in addition to quartz, mullite, hematite and magnesioferrite, and presents significant
Bayarzul, U.   +7 more
core   +5 more sources

Home - About - Disclaimer - Privacy