Results 231 to 240 of about 4,357,340 (293)

Structural alteration within fly ash-based geopolymers governing the adsorption of Cu2+ from aqueous environment: Effect of alkali activation

Journal of Hazardous Materials, 2019
Fly-ash based geopolymers have been considered as a low-cost yet effective adsorbent for the removal of heavy metal cations, including Cu2+, from the aqueous environment.
Suprihanto Notodarmojo   +2 more
exaly   +2 more sources

Geopolymerization of halloysite via alkali-activation: Dependence of microstructures on precalcination

Applied Clay Science, 2020
Halloysite has a chemical composition very similar to that of kaolinite, but it possesses a special nanotubular structure and surface reactivity. This work focuses on the geopolymerization of halloysite via alkali-activation, and investigates the effects
Peng Yuan, Haozhe Guo, Baifa Zhang
exaly   +2 more sources

Pb(II) sorption by biochar derived from Cinnamomum camphora and its improvement with ultrasound-assisted alkali activation

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2018
Conversion of solid wastes into biochar for removal of toxic heavy metals provides a cleaner method for waste management and benefits environmental protection.
, Chongqing Wang
exaly   +2 more sources

Alkali activation of bottom ash from municipal solid waste incineration: Optimization of NaOH- and Na 2SiO3-based activators

, 2021
Considerable amounts of municipal solid waste incinerator bottom ashes are produced yearly without an adequate outlet. Given the established reactivity of the ash when subjected to an alkali medium, there is considerable scope to valorize it within the ...
R. Carvalho   +3 more
semanticscholar   +1 more source

Durability and life cycle evaluation of self-compacting concrete containing fly ash as GBFS replacement with alkali activation

, 2020
Nowadays, geopolymer with alkali activation binders are introduced as alternative environmentally friendly construction materials to the ordinary Portland cement for solving the carbon dioxide emission and high energy consumption problems.
Ghasan Fahim Huseien, K. W. Shah
semanticscholar   +1 more source

Ultra-lightweight porous materials fabrication and hazardous lead-stabilization through alkali-activation/sintering of different industrial solid wastes

, 2020
The beneficial use of alkali-activation/sintering process in the fabrication of open-celled cellular materials and lead solidification/stabilization (S/S) is the biggest challenge of the present work.
H. Abdel-Gawwad   +2 more
semanticscholar   +1 more source

Alkali activation of electric arc furnace slag: Mechanical properties and micro analyzes

Journal of Building Engineering, 2019
Research on sustainable concrete has drawn scientist’s attentions on industrial by-products and wastes. Thus, consumption of raw materials would be diminished.
M. Ozturk   +3 more
semanticscholar   +1 more source

Properties of alkali-activated lightweight concrete

2022
This chapter presents a brief overview of the properties of alkali-activated lightweight concrete. Nowadays, the production of lightweight concrete has great attentions due to its extraordinary advantages such as reduced mass, improved sound and thermal insulation properties.
Colangelo F.   +5 more
openaire   +1 more source

Enhancing alkali-activation of metakaolin-based geopolymers using dry water

, 2020
A water-in-air Pickering emulsion, also called dry water, was produced with hydrophobic nanosilica, which was then employed in this study to examine its possible benefit upon the alkali-activation of metakaolin-based geopolymers.
Chaofan Yi, Y. Boluk, V. Bindiganavile
semanticscholar   +1 more source

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