Effect of the SiO2 /Al2 O3 and Na2 O/SiO2 ratios on the properties of geopolymers based on MK
Revista Facultad de Ingeniería Universidad de Antioquia, 2013 In this work, the effects of the molar ratios SiO2 /Al2 O3 (3.0 – 4.0) and Na2 O/ SiO2 (0.25 – 0.40) on the compression strength and the autogenous shrinkage of geopolymers based on Metakaolin (MK) were investigated.
Erich Rodríguez +3 more
doaj +1 more source
Management and valorisation of wastes through use in producing alkali-activated cement materials [PDF]
, 2016 There is a growing global interest in maximising the re-use and recycling of waste, to minimise the environmental impacts associated with waste treatment and disposal.
Abreu +232 more
core +2 more sources
Investigating the retarding effect of CAC in alkali-activated cements
Frontiers in Materials, 2023 This paper discusses the design of hybrid alkali-activated binders at ambient temperature, specifically the development of mixes based on ground granulated blast-furnace slag (GGBFS) with calcium aluminate cement (CAC) as an additive, aiming to obtain ...
Laura Stefanini +3 more
doaj +1 more source
Influence of size reduction of fly ash particles by grinding on the chemical properties of geopolymers [PDF]
, 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
Porous glass-ceramics from alkali activation and sinter-crystallization of mixtures of waste glass and residues from plasma processing of municipal solid waste [PDF]
, 2018 Alkali-activated aqueous slurries of fine glass powders, mostly deriving from the plasma processing of municipal solid waste ('Plasmastone'), were found to undergo progressive hardening at low temperature (75 degrees C) owing to the formation of C-S-H ...
Bernardo, Enrico +3 more
core +3 more sources
Fibre Reinforced Alkali-Activated Rock Wool
3rd International Conference on Technologies & Business Models for Circular Economy: Conference Proceedings, 2022 Mineral wool, i.e. rock and glass wool, represents considerable challenge after its functional-time runs out due to its small density leading to large volume consumption during transport and in landfills where it usually ends. Because rock wool is mineralogically and chemically a promising precursor material for alkali-activation, it was milled from ...
Majda Pavlin +2 more
openaire +2 more sources
Self-Heating Ability of Geopolymers Enhanced by Carbon Black Admixtures at Different Voltage Loads [PDF]
, 2019 Sustainable development in the construction industry can be achieved by the design of multifunctional materials with good mechanical properties, durability, and reasonable environmental impacts.
Fiala L. +4 more
core +1 more source
Synthesis of geopolymer from spent FCC: Effect of SiO2/Al2O
Materiales de Construccion, 2015 This paper assesses the feasibility of using a spent fluid catalytic cracking catalyst (SFCC) as precursor for the production of geopolymers. The mechanical and structural characterization of alkali-activated SFCC binders formulated with different ...
J. J. Trochez +3 more
doaj +1 more source
Adsorption performance of basic fuchsin on alkali-activated diatomite
Adsorption Science & Technology, 2020 The natural diatomite was treated with NaOH to obtain alkali-activated diatomite. The materials were systematically characterized by X-ray powder diffraction, X-ray fluorescence, Fourier transform infrared spectroscopic, scanning electron microscopy, and
Yong-Hua Zhao +4 more
doaj +1 more source
Alkaline Activation of Kaolin Group Minerals
Crystals, 2020 Zeolites can be obtained in the process of the alkali-activation of aluminosilicate precursors. Such zeolite–geopolymer hybrid bulk materials merge the advantageous properties of both zeolites and geopolymers. In the present study, the effect of the type
Oliwia Biel +4 more
doaj +1 more source