Environmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents

Alternative low-carbon cementitious binders such as geopolymers are rapidly garnering scientific interest to replace Ordinary Portland Cement (OPC). Industrial waste by-products such as coal fly ash (CFA) and ground granulated blast furnace slag (GGBS) are usually utilized for this material. Microca...

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Autores principales:	Jerome Ignatius T. Garces, Raymond R. Tan, Arnel B. Beltran, Jason Maximino C. Ongpeng, Michael Angelo B. Promentilla
Formato:	article
Lenguaje:	EN
Publicado:	AIDIC Servizi S.r.l. 2021
Materias:	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
Acceso en línea:	https://doaj.org/article/b0473ba3fbe94921953cb81e445a23e7
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spelling	oai:doaj.org-article:b0473ba3fbe94921953cb81e445a23e72021-11-15T21:47:37ZEnvironmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents10.3303/CET21881392283-9216https://doaj.org/article/b0473ba3fbe94921953cb81e445a23e72021-11-01T00:00:00Zhttps://www.cetjournal.it/index.php/cet/article/view/11932https://doaj.org/toc/2283-9216Alternative low-carbon cementitious binders such as geopolymers are rapidly garnering scientific interest to replace Ordinary Portland Cement (OPC). Industrial waste by-products such as coal fly ash (CFA) and ground granulated blast furnace slag (GGBS) are usually utilized for this material. Microcapsules can also be added to geopolymers to enhance its self-healing capability as it has potential environmental benefits aside from cost savings. This study thus focuses on the cradle-to-gate LCA of geopolymer concrete containing microcapsules for self-healing. Two different microcapsules were considered: Urea-formaldehyde (UF)/Dicyclopentadiene (DCPD) and Poly(urea-urethane) (PUU)/Alkali-activator (AA). Three different geopolymer precursors were studied: CFA, GGBS and CFA/GGBS. OpenLCA software was used for the calculations and analysis, and the inventory data were obtained from Ecoinvent and OzLCI2019 supplemented by literature data. An impact assessment was carried out using CML 2001. Self-healing geopolymer concrete is better in terms of lower global warming potential but performs worse in other impact categories than conventional OPC concrete. Of the geopolymer concrete assessed, GGBS concrete has the lowest impacts. On the other hand, of the two self-healing microcapsules, UF/DCPD is better for the environment. The primary factor for this difference is the solvent used in microcapsule synthesis. From this result, it has been shown that self-healing GGBS concrete containing UF/DCPD microcapsules has the lowest impacts of the self-healing concrete assessed.Jerome Ignatius T. GarcesRaymond R. TanArnel B. BeltranJason Maximino C. OngpengMichael Angelo B. PromentillaAIDIC Servizi S.r.l.articleChemical engineeringTP155-156Computer engineering. Computer hardwareTK7885-7895ENChemical Engineering Transactions, Vol 88 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895
spellingShingle	Chemical engineering TP155-156 Computer engineering. Computer hardware TK7885-7895 Jerome Ignatius T. Garces Raymond R. Tan Arnel B. Beltran Jason Maximino C. Ongpeng Michael Angelo B. Promentilla Environmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents
description	Alternative low-carbon cementitious binders such as geopolymers are rapidly garnering scientific interest to replace Ordinary Portland Cement (OPC). Industrial waste by-products such as coal fly ash (CFA) and ground granulated blast furnace slag (GGBS) are usually utilized for this material. Microcapsules can also be added to geopolymers to enhance its self-healing capability as it has potential environmental benefits aside from cost savings. This study thus focuses on the cradle-to-gate LCA of geopolymer concrete containing microcapsules for self-healing. Two different microcapsules were considered: Urea-formaldehyde (UF)/Dicyclopentadiene (DCPD) and Poly(urea-urethane) (PUU)/Alkali-activator (AA). Three different geopolymer precursors were studied: CFA, GGBS and CFA/GGBS. OpenLCA software was used for the calculations and analysis, and the inventory data were obtained from Ecoinvent and OzLCI2019 supplemented by literature data. An impact assessment was carried out using CML 2001. Self-healing geopolymer concrete is better in terms of lower global warming potential but performs worse in other impact categories than conventional OPC concrete. Of the geopolymer concrete assessed, GGBS concrete has the lowest impacts. On the other hand, of the two self-healing microcapsules, UF/DCPD is better for the environment. The primary factor for this difference is the solvent used in microcapsule synthesis. From this result, it has been shown that self-healing GGBS concrete containing UF/DCPD microcapsules has the lowest impacts of the self-healing concrete assessed.
format	article
author	Jerome Ignatius T. Garces Raymond R. Tan Arnel B. Beltran Jason Maximino C. Ongpeng Michael Angelo B. Promentilla
author_facet	Jerome Ignatius T. Garces Raymond R. Tan Arnel B. Beltran Jason Maximino C. Ongpeng Michael Angelo B. Promentilla
author_sort	Jerome Ignatius T. Garces
title	Environmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents
title_short	Environmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents
title_full	Environmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents
title_fullStr	Environmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents
title_full_unstemmed	Environmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents
title_sort	environmental life cycle assessment of alkali-activated material with different mix designs and self-healing agents
publisher	AIDIC Servizi S.r.l.
publishDate	2021
url	https://doaj.org/article/b0473ba3fbe94921953cb81e445a23e7
work_keys_str_mv	AT jeromeignatiustgarces environmentallifecycleassessmentofalkaliactivatedmaterialwithdifferentmixdesignsandselfhealingagents AT raymondrtan environmentallifecycleassessmentofalkaliactivatedmaterialwithdifferentmixdesignsandselfhealingagents AT arnelbbeltran environmentallifecycleassessmentofalkaliactivatedmaterialwithdifferentmixdesignsandselfhealingagents AT jasonmaximinocongpeng environmentallifecycleassessmentofalkaliactivatedmaterialwithdifferentmixdesignsandselfhealingagents AT michaelangelobpromentilla environmentallifecycleassessmentofalkaliactivatedmaterialwithdifferentmixdesignsandselfhealingagents
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Environmental Life Cycle Assessment of Alkali-activated Material with Different Mix Designs and Self-healing Agents

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