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20240511232917.0 |
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240428s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2024.04.042
|2 doi
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|a pubmed24n1404.xml
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|a (DE-627)NLM371659906
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|a (NLM)38677140
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|a DE-627
|b ger
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|a eng
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|a Santana, Henrique A
|e verfasserin
|4 aut
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|a Thermally-treated asbestos-cement wastes as supplementary precursor for geopolymeric binders
|b CO2 emission and properties
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 10.05.2024
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|a Date Revised 10.05.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier Ltd. All rights reserved.
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|a This article explores the impact of thermally treated asbestos-cement waste (ACWT) on metakaolin-based geopolymers, using liquid sodium silicate (LSS) and liquid potassium silicate (LKS) as alkali activators. Through statistical mixture design, various formulations were tested for rheological parameters, mineralogical composition, efflorescence mass, electrical conductivity, compressive strength, and CO2 emissions. Formulations with sodium silicate exhibited higher yield stress compared to those with potassium silicate, while flash setting occurred in LKS-activated mixtures with high ACWT content. Alkali activator content significantly affected mechanical strength and leachate electrical conductivity. CO2 emissions were higher for LKS-activated formulations but lower for those with more ACWT. Finally, by incorporating ACWT, it was possible to optimize the formulations, resulting in high compressive strength, reduced free ions, and reduced negative environmental impact
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|a Journal Article
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|a Alkali-activated binders
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|a Environmental analysis
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|a Hazardous waste
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|a Rheology
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|a Carbon Dioxide
|2 NLM
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|a 142M471B3J
|2 NLM
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|a Silicates
|2 NLM
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|a Asbestos
|2 NLM
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|a 1332-21-4
|2 NLM
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|a sodium silicate
|2 NLM
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|a IJF18F77L3
|2 NLM
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|a Industrial Waste
|2 NLM
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| 700 |
1 |
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|a Ruviaro, Artur S
|e verfasserin
|4 aut
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|a Ribeiro, Daniel V
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cilla, Marcelo S
|e verfasserin
|4 aut
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|a Walkley, Brant
|e verfasserin
|4 aut
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|a M R Dias, Cleber
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 182(2024) vom: 15. Mai, Seite 225-236
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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|g volume:182
|g year:2024
|g day:15
|g month:05
|g pages:225-236
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|u http://dx.doi.org/10.1016/j.wasman.2024.04.042
|3 Volltext
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