Immobilization of Pb from mine sediments in metakaolin-based geomaterials
Sign Up to like & getrecommendations! Published in 2019 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-019-04737-7
Abstract: The aims of this study correspond to (i) determine the feasibility of synthesize geomaterial from two main Pb-contaminated mining sediments (Sed1 and Sed2) without prior activation in substitution to metakaolin (MK), (ii) understand the mechanisms… read more here.
Keywords: sediments metakaolin; mine sediments; based geomaterials; metakaolin based ... See more keywords
Binder-scale creep behavior of metakaolin-based geopolymer
Sign Up to like & getrecommendations! Published in 2019 at "Cement and Concrete Research"
DOI: 10.1016/j.cemconres.2019.105810
Abstract: Abstract In this study, the creep behavior of binder phase in metakaolin-based geopolymers (MKGs) was investigated using nanoindentation. The underlying influence of the Si/Al ratio on the creep behavior was determined from detailed microstructure characterization… read more here.
Keywords: scale creep; creep behavior; metakaolin based; behavior ... See more keywords
Metakaolin based geopolymer as an effective adsorbent for adsorption of zinc(II) and nickel(II) ions from aqueous solutions
Sign Up to like & getrecommendations! Published in 2017 at "Applied Clay Science"
DOI: 10.1016/j.clay.2017.01.008
Abstract: Abstract Metakaolin based geopolymer (MKG) was investigated as an adsorbent to remove Zn(II) and Ni(II) ions from aqueous solution. The parameters of initial pH, adsorbent amount, time of contact and initial metal ion concentration on… read more here.
Keywords: adsorption; geopolymer effective; aqueous solutions; metakaolin based ... See more keywords
Efficiency and mechanism of stabilization/solidification of Pb(II), Cd(II), Cu(II), Th(IV) and U(VI) in metakaolin based geopolymers
Sign Up to like & getrecommendations! Published in 2017 at "Applied Clay Science"
DOI: 10.1016/j.clay.2017.02.003
Abstract: Abstract This work deals with stabilization/solidification of Pb(II), Cd(II), Cu(II), Th(IV) and U(VI) in metakaolin (MK) based geopolymer (GP) prepared using one activator (sodium silicate) or two activators (sodium silicate and sodium hydroxide). Different leaching… read more here.
Keywords: solidification metakaolin; stabilization; stabilization solidification; metakaolin based ... See more keywords
Study on the performance of metakaolin based geopolymer for Mn(II) and Co(II) removal.
Sign Up to like & getrecommendations! Published in 2018 at "Applied Clay Science"
DOI: 10.1016/j.clay.2018.04.027
Abstract: Abstract The aim of this study is to remove heavy metals ions of Mn(II) and Co(II) from aqueous solutions by using metakaolin based geopolymer, a new potential low-cost alternative adsorbent material. The parameters of initial… read more here.
Keywords: adsorption; study; metakaolin based; performance ... See more keywords
Thermal and microbiological performance of metakaolin-based geopolymers cement with waste glass
Sign Up to like & getrecommendations! Published in 2020 at "Applied Clay Science"
DOI: 10.1016/j.clay.2020.105763
Abstract: Abstract In this paper, we investigated the behavior of the metakaolin-based geopolymeric matrix incorporated with waste glass. Pure metakaolin and mixtures obtained by adding different percentages (30, 40, and 50 wt%) of waste glass were consolidated… read more here.
Keywords: glass; performance; metakaolin based; waste glass ... See more keywords
Re-use of waste glass in improving properties of metakaolin-based geopolymers: Mechanical and microstructure examinations
Sign Up to like & getrecommendations! Published in 2017 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2016.12.023
Abstract: Abstract Alkaline fusion processed waste glass was re-used as a supplementary Si-source to improve the mechanical properties of Egyptian metakaolin-based geopolymers. Different alkaline silicate solutions having different SiO 2 / Na 2 O ratios were… read more here.
Keywords: based geopolymers; waste; waste glass; metakaolin based ... See more keywords
Metakaolin-based geopolymer: Formation of new phases influencing the setting time with the use of additives
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DOI: 10.1016/j.conbuildmat.2018.12.114
Abstract: Abstract The aim of this investigation was the development of a geopolymer grout. To achieve this goal, it is necessary to control the characteristics of the reactive mixture (i.e., between the dissolution of the mineral… read more here.
Keywords: geopolymer formation; time; based geopolymer; metakaolin based ... See more keywords
Adsorption behaviour of simulant radionuclide cations and anions in metakaolin-based geopolymer.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of hazardous materials"
DOI: 10.1016/j.jhazmat.2022.128373
Abstract: Geopolymers are a class of alkaline-activated materials that have been considered as promising materials for radioactive waste disposal. Currently, metakaolin-based geopolymers (MK-GPs) are attracting interest for the immobilisation of radionuclides in contaminated water from the… read more here.
Keywords: behaviour simulant; adsorption behaviour; simulant radionuclide; metakaolin based ... See more keywords
Effects of silane on reaction process and microstructure of metakaolin-based geopolymer composites
Sign Up to like & getrecommendations! Published in 2020 at "Journal of building engineering"
DOI: 10.1016/j.jobe.2020.101695
Abstract: Abstract A series of metakaolin-based geopolymer (MG) organic-inorganic composites were prepared by incorporating with different contents of silane. The silane was used as coupling agent to recombine different components in geopolymer pastes. During the hydration… read more here.
Keywords: metakaolin based; reaction; based geopolymer; geopolymer ... See more keywords
Effect of Elevated Temperature on the Microstructure of Metakaolin-Based Geopolymer
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c06878
Abstract: Currently, geopolymer is being considered as a future oil-well cement. For wellbore applications, geopolymers are initially tested at specific temperature conditions. However, an oil-wellbore may experience a sudden increase in temperature which may adversely affect… read more here.
Keywords: temperature; effect elevated; metakaolin based; based geopolymer ... See more keywords