Articles with "alkali activated" as a keyword



Leaching assessment of cemented bauxite tailings through wetting and drying cycles of durability test

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Published in 2022 at "Environmental Science and Pollution Research"

DOI: 10.1007/s11356-022-20031-5

Abstract: Disposal of mine tailings can cause negative environmental effects by releasing contaminants to surface and underground water. Alkali activation is a promising technique for immobilizing metals in stabilization/solidification of these wastes. This study evaluates the… read more here.

Keywords: cemented bauxite; alkali activated; bauxite tailings; durability ... See more keywords

Influence of Granulated Silico-Manganese Slag on Compressive Strength and Microstructure of Ambient Cured Alkali-Activated Fly Ash Binder

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Published in 2019 at "Waste and Biomass Valorization"

DOI: 10.1007/s12649-018-0213-1

Abstract: This work focuses on gainful utilization of low reactive fly ash at ambient temperature into alkali-activated binder with the addition of another industrial waste silico-manganese (SiMn) slag. Granulated SiMn slag (GSS) percentage was gradually increased… read more here.

Keywords: alkali activated; slag; binder; silico manganese ... See more keywords

Improved Reactivity of Volcanic Ash using Municipal Solid Incinerator Fly Ash for Alkali-Activated Cement Synthesis

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Published in 2019 at "Waste and Biomass Valorization"

DOI: 10.1007/s12649-019-00604-1

Abstract: In this work, municipal solid waste incinerator fly ash (MSWI-FA) was used as precursor to alter the reactivity of low reactive volcanic ash (VA) for alkali-activated cement synthesised. The effects of various proportions of MSWI-FA… read more here.

Keywords: alkali activated; volcanic ash; municipal solid; reactivity ... See more keywords
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Potentiality of the Use of Pyroclastic Volcanic Residues in the Production of Alkali Activated Material

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Published in 2020 at "Waste and Biomass Valorization"

DOI: 10.1007/s12649-020-01004-6

Abstract: Abstract Volcanic rocks have been used for building activity by the inhabitants of important cities located on the slopes of Mt. Etna, Italy. In this paper, the potential use of volcanic residues (code 20 03… read more here.

Keywords: production; volcanic residues; production alkali; waste ... See more keywords
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Alkali Activated Binders Based on Biomass Bottom Ash and Silica By-Product Blends

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Published in 2020 at "Waste and Biomass Valorization"

DOI: 10.1007/s12649-020-01042-0

Abstract: Abstract Due to the growing number of biomass boiler plants there are rapid growth of biomass combustion by-products. The key point of this investigation is to utilize biomass bottom ash (BBA) and silicagel by-product (SB)… read more here.

Keywords: biomass; bottom ash; biomass bottom; activated binders ... See more keywords
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Recycling of Glass Cullet and Glass Powder in Alkali-Activated Cement: Mechanical Properties and Alkali–Silica Reaction

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Published in 2020 at "Waste and Biomass Valorization"

DOI: 10.1007/s12649-020-01102-5

Abstract: This study investigated the compressive strength, drying shrinkage and alkali-silica reaction (ASR) expansion of alkali-activated mortars using sand or glass cullet (GC) as aggregates and using glass powder (GP) to partially replace ground granulated furnace… read more here.

Keywords: drying shrinkage; expansion; glass; alkali silica ... See more keywords
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Effect of Binder Content and Solution/Binder Ratio on Alkali-Activated Slag Concrete Activated with Neutral Grade Water Glass

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Published in 2020 at "Arabian Journal for Science and Engineering"

DOI: 10.1007/s13369-020-04666-5

Abstract: Use of alkali-activated slag concrete (AASC) in replacing conventional concrete has become an environmentally friendly alternative construction technique. Alkali activation of fly ash and ground granulated blast furnace slag (GGBFS) using NaOH and Na 2… read more here.

Keywords: activated slag; binder; solution; alkali activated ... See more keywords

Alkali-activated materials containing mine tailings and zeolite for seepage water treatment in a closed nickel mine

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Published in 2024 at "International Journal of Environmental Science and Technology"

DOI: 10.1007/s13762-024-06002-y

Abstract: In the present study, alkali-activated materials were assessed as adsorbents for mine water treatment. The composition of alkali-activated materials, involving mixtures of metakaolin, blast-furnace slag, mine tailings, and zeolite, was optimized based on their leaching… read more here.

Keywords: water treatment; water; activated materials; seepage water ... See more keywords

Carbonation Resistance of Alkali-Activated Slag Under Natural and Accelerated Conditions

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Published in 2018 at "Journal of Sustainable Metallurgy"

DOI: 10.1007/s40831-018-0166-4

Abstract: In this paper, carbonation resistance of alkali-activated slag (AAS) pastes exposed to natural and accelerated conditions up to 1 year was investigated. Two aspects of carbonation mechanism were evaluated. The first was the potential carbonation of… read more here.

Keywords: carbonation resistance; carbonation; activated slag; resistance alkali ... See more keywords

Performance of alkali-activated slag concrete against sulphuric acid attack

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Published in 2018 at "Asian Journal of Civil Engineering"

DOI: 10.1007/s42107-018-0028-1

Abstract: This study aims to investigate the performance of alkali-activated slag concrete (AASC) and conventional concrete (CC) against sulphuric acid attack. From the preliminary investigations conducted on 18 trial mixes of AASC, four AASC mixes (S–0.4–2.33–16M,… read more here.

Keywords: acid attack; alkali activated; sulphuric acid; performance alkali ... See more keywords

Engineering and microstructural properties of environmentally friendly alkali-activated composites containing clinker aggregate: heat-curing regime and elevated-temperature effect

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Published in 2024 at "Archives of Civil and Mechanical Engineering"

DOI: 10.1007/s43452-024-00990-x

Abstract: The common wisdom in the literature about clinker aggregate (CA) is that it improves the performance properties of mortar or concrete to some extent. The current study, in this context, investigated the physical characteristics and… read more here.

Keywords: temperature; heat; clinker aggregate; heat curing ... See more keywords