<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2422-4200</journal-id>
<journal-title><![CDATA[Revista Logos Ciencia & Tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. logos cienc. tecnol.]]></abbrev-journal-title>
<issn>2422-4200</issn>
<publisher>
<publisher-name><![CDATA[Policía Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2422-42002022000100076</article-id>
<article-id pub-id-type="doi">10.22335/rlct.v14i1.1510</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Inclusión de concretos sostenibles en el cumplimiento de la Resolución 0472 de 2017 y la disminución de emisiones del sector constructor colombiano: Análisis de materiales]]></article-title>
<article-title xml:lang="en"><![CDATA[Inclusion of sustainable concretes in compliance with Resolution 0472 of 2017 and the decrease in emissions from the Colombian building sector: Analysis of Materials]]></article-title>
<article-title xml:lang="pt"><![CDATA[Inclusão de betões sustentáveis em conformidade com a Resolução 0472 de 2017 e a redução das emissões no sector construtor colombiano: Análise de materiais]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pardo Alvarez]]></surname>
<given-names><![CDATA[Nicolás Steven]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López Castaño]]></surname>
<given-names><![CDATA[Deisy Jackeline]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rico Pérez]]></surname>
<given-names><![CDATA[María Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Institución Universitaria Colegio Mayor de Antioquia  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Institución Universitaria Colegio Mayor de Antioquia  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Institución Universitaria Colegio Mayor de Antioquia  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>14</volume>
<numero>1</numero>
<fpage>76</fpage>
<lpage>85</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S2422-42002022000100076&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S2422-42002022000100076&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S2422-42002022000100076&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Actualmente se reconoce que el sector constructor es uno de los principales generadores de residuos de construcción y demolición (RCD) y emisiones de gases de efecto invernadero (GEI) a nivel mundial. Si bien a nivel nacional existe la Resolución 0472 de 2017 para llevar a cabo una adecuada gestión de los RCD, es importante analizar la influencia del cumplimiento de esta norma en la generación y posible disminución de GEI. Por esta razón, la presente investigación tiene como objetivo valorar técnicamente la relación entre el componente normativo de gestión de RCD (Resolución 472 de 2017) y la reducción de la huella de carbono en la primera fase del ciclo constructivo, estableciendo como estudio de caso una edificación en altura ubicada en la ciudad de Medellín. Para esto se plantearon cuatro escenarios de cumplimiento de Programa de Manejo Ambiental (PMA) en función de diferentes diseños de mezcla de concreto de 24 MPa de resistencia a la compresión, evaluando además la huella de carbono de cada escenario. Los diseños de mezcla de concreto presentaron la inclusión de aditivos superplastificantes, sustituciones parciales de cemento por ceniza volante y/o sustituciones parciales de agregados vírgenes por agregados reciclados. Los resultados demostraron que para el cumplimiento de la normativa de RCD es estratégica la sustitución parcial de agregados vírgenes por agregados reciclados (escenario 3), pero para la reducción en la huella de carbono es importante la sustitución parcial de cemento por ceniza volante, incluyendo aditivos superplastificantes (escenario 2). Por lo tanto, el escenario 4 que vincula todas las estrategias mencionadas presenta altos porcentajes de cumplimiento de la normativa (17,2 % frente a 11,3% del escenario base) y una reducción en la huella de carbono (338,1 kg CO2 /m2 frente a 438,1 kg CO2/m2 del escenario base).]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT It is now recognized that the construction sector is one of the main generators of construction and demolition waste (CDW) and emissions of greenhouse gases (GHG) emission worldwide. Although at national level there is Resolution 0472 of 2017 to carry out proper management of the CDW, it is important to analyze the influence of compliance with this standard in the generation and possible reduction of (GHG). For this reason, the present research aims to technically assess the relationship between policy management component CDW (Resolution 472, 2017) and reducing the carbon footprint in the first phase of the construction cycle, stablishing a case study a high-rise building located in the city of Medellin. For this purpose, four scenarios of compliance with the Environmental Management Program (EMP) were proposed, based on different concrete mix designs of 24 MPa of compressive strength, also evaluating the carbon footprint of each scenario. Concrete mix designs presented the inclusion of superplasticizer additives, partial substitutions of cement for fly ash and / or partial substitutions of virgin aggregates for recycled aggregates. The results showed that in order to comply with the CDW regulations, the partial replacement of virgin aggregates with recycled aggregates is strategic (scenario 3), but for the reduction in the carbon footprint, the partial replacement of cement with fly ash, including superplasticizer admixtures, is important (scenario 2). Therefore, the stage 4 which links all the above strategies has high percentages of compliance with regulations (17.2 % versus 11.3 % of the baseline scenario) and a reduction in carbon footprint (338.1 kg CO2/m2 versus 438.1 kg CO2/m2 of the baseline scenario).]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO É actualmente reconhecido que o sector da construção é um dos principais geradores de resíduos de construção e demolição (RCD) e de emissões de gases de efeito estufa (GEE) em todo o mundo. Embora a Resolução 0472 de 2017 exista a nível nacional para levar a cabo uma gestão adequada dos RCD, é importante analisar a influência do cumprimento desta regulamentação na geração e possível redução dos GEE. Por esta razão, esta investigação visa avaliar tecnicamente a relação entre a componente nrmativa da gestão de RCD (Resolução 472 de 2017) e a redução da pegada de carbono na primeira fase do ciclo de construção, estabelecendo como estudo de caso uma edificação em altura localizada na cidade de Medellín. Para este efeito, foram propostos quatro cenários de conformidade com o Programa de Gestão Ambiental (PGA) com base em diferentes projectos de misturas de betão de 24 MPa de resistência à compressão, avaliando além a pegada de carbono de cada cenário. Os desenhos da mistura de betão apresentavam a inclusão de aditivos superplástificantes, substituições parciais de cimento com cinza volante e/ou substituições parciais de agregados virgens por agregados reciclados. Os resultados mostraram que que para o cumprimento da normativa de RCD é estratégica a substituição parcial de agregados virgens por agregados reciclados (cenário 3), mas para a redução na pegada de carbon é importante a substituição parcial de cimento por cinza volante, incluindo aditivos superplástificantes (cenário 2). Por conseguinte, o cenário 4, que liga todas as estratégias acima mencionadas, apresenta taxas de cumprimento elevadas (17,2% contra 11,3% no cenário de base) e uma redução da pegada de carbono (338,1 kg de CO2 /m2 contra 438,1 kg de CO2/m2 no cenário de base).]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Residuos de construcción y demolición (RCD)]]></kwd>
<kwd lng="es"><![CDATA[concreto sostenible]]></kwd>
<kwd lng="es"><![CDATA[huella de carbono]]></kwd>
<kwd lng="es"><![CDATA[construcción sostenible]]></kwd>
<kwd lng="es"><![CDATA[ciclo de vida constructivo]]></kwd>
<kwd lng="es"><![CDATA[gases de efecto invernadero (GEI)]]></kwd>
<kwd lng="en"><![CDATA[Construction and demolition waste (CDW)]]></kwd>
<kwd lng="en"><![CDATA[sustainable concrete]]></kwd>
<kwd lng="en"><![CDATA[carbon footprint]]></kwd>
<kwd lng="en"><![CDATA[sustainable construction]]></kwd>
<kwd lng="en"><![CDATA[constructive life cycle]]></kwd>
<kwd lng="en"><![CDATA[greenhouse gases (GHG)]]></kwd>
<kwd lng="pt"><![CDATA[Resíduos de construção e demolição (RCD)]]></kwd>
<kwd lng="pt"><![CDATA[betão sustentável]]></kwd>
<kwd lng="pt"><![CDATA[pegada de carbono]]></kwd>
<kwd lng="pt"><![CDATA[construção sustentável]]></kwd>
<kwd lng="pt"><![CDATA[ciclo de vida da construção]]></kwd>
<kwd lng="pt"><![CDATA[gases de efeito de estufa (GEE)]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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