<?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>0123-921X</journal-id>
<journal-title><![CDATA[Tecnura]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnura]]></abbrev-journal-title>
<issn>0123-921X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Distrital Francisco José de Caldas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-921X2019000200038</article-id>
<article-id pub-id-type="doi">10.14483/22487638.14697</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Uso de materiales reciclados en compuestos cementicios]]></article-title>
<article-title xml:lang="en"><![CDATA[Using recycled materials in cementitious composites]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Xargay]]></surname>
<given-names><![CDATA[Hernán]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ripani]]></surname>
<given-names><![CDATA[Marianela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Caggiano]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Folino]]></surname>
<given-names><![CDATA[Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martinelli]]></surname>
<given-names><![CDATA[Enzo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Buenos Aires Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Buenos Aires ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Buenos Aires Facultad de Ingeniería ]]></institution>
<addr-line><![CDATA[Buenos Aires ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Buenos Aires  ]]></institution>
<addr-line><![CDATA[Buenos Aires ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Buenos Aires  ]]></institution>
<addr-line><![CDATA[Buenos Aires ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Università di Salerno  ]]></institution>
<addr-line><![CDATA[Fisciano ]]></addr-line>
<country>Italia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<volume>23</volume>
<numero>60</numero>
<fpage>38</fpage>
<lpage>51</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-921X2019000200038&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-921X2019000200038&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-921X2019000200038&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Contexto: La producción de hormigón se caracteriza por una importante demanda de energía y materias primas, emitiendo grandes cantidades de gases de efecto invernadero (GEI). Asimismo, la construcción, mantenimiento y demolición de edificios genera enormes cuantías de residuos que requieren costosos y ambientalmente sensibles procedimientos de disposición final. Por tanto, en la actualidad se están investigando diversas soluciones para reducir el impacto ambiental de los procesos asociados al ciclo de vida del hormigón.  Metodología: Se estudiaron, mediante ensayos experimentales, las propiedades físicas y mecánicas de los siguientes materiales sustentables: hormigón con agregados reciclados, hormigón con reemplazo parcial de cemento Portland por cenizas volantes y compuestos cementicios reforzados con fibras recicladas.  Resultados: El uso de agregados gruesos reciclados degradó las características mecánicas del hormigón debido a su mayor porosidad y capacidad de absorción de agua. Sin embargo, su combinación con cenizas volantes mostró un efecto sinérgico, mitigando las consecuencias adversas mencionadas. La respuesta posfisuración del hormigón reforzado con fibras de acero recicladas se caracterizó por una menor tenacidad y ductilidad respecto a los compuestos con fibras industriales. Específicamente, las mezclas con fibras recicladas mostraron una etapa de ablandamiento más pronunciada. Esto reveló una eficiencia menor de las fibras recicladas con respecto a las industriales.  Conclusiones: Los resultados experimentales demostraron que la incorporación de materiales reciclados condujo a un deterioro en el comportamiento físico y mecánico-resistente de los compuestos analizados. No obstante, las propiedades resultantes superaron los valores mínimos recomendados para su aplicación como materiales estructurales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Context: Concrete production is characterized by a significant demand of energy and raw materials, and by emitting large amounts of greenhouse gases (GHG). Moreover, the processes of construction, maintenance, and demolition of buildings generate huge quantities of waste that require costly and environmentally sensitive disposal procedures. Therefore, several solutions are being investigated to reduce the environmental impact of the processes associated with the life cycle of concrete.  Methodology: Through experimental tests, the physical and mechanical properties of three sustainable concrete mixtures were studied: concrete with recycled aggregates, concrete with partial replacement of Portland cement by fly ash, and cementitious composites reinforced with recycled fibers.  Results: The use of coarse recycled aggregates degraded the mechanical characteristics of the concrete due to their greater porosity and water absorption capacity. However, the mixture made out of recycled aggregates and fly ash showed a synergistic effect, mitigating the adverse consequences mentioned. The post-cracking response of concrete reinforced with recycled steel fibers was characterized by a lower tenacity and ductility compared to composites with industrial fibers. Specifically, mixtures with recycled fibers showed a more pronounced softening stage. This revealed a lower efficiency of recycled fibers compared to industrial fibers.  Conclusions: The experimental results showed that the incorporation of recycled materials led to a deterioration in the physical and mechanical behavior of the analyzed composites. However, the resulting properties exceeded the recommended minimum values required for their application as structural materials.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[compuestos cementicios]]></kwd>
<kwd lng="es"><![CDATA[hormigón]]></kwd>
<kwd lng="es"><![CDATA[fibras]]></kwd>
<kwd lng="es"><![CDATA[reciclado]]></kwd>
<kwd lng="es"><![CDATA[sustentabilidad]]></kwd>
<kwd lng="en"><![CDATA[cementitious composites]]></kwd>
<kwd lng="en"><![CDATA[concrete]]></kwd>
<kwd lng="en"><![CDATA[fibers]]></kwd>
<kwd lng="en"><![CDATA[recycling]]></kwd>
<kwd lng="en"><![CDATA[sustainability]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<collab>121-DRG RILEM TC</collab>
<article-title xml:lang=""><![CDATA[Specification for concrete with recycled aggregates]]></article-title>
<source><![CDATA[Materials and Structures]]></source>
<year>1994</year>
<volume>27</volume>
<numero>173</numero>
<issue>173</issue>
<page-range>557-9</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<collab>ACI 555-R01</collab>
<source><![CDATA[Removal and reuse of hardened concrete. Reporte del ACI Committee 555]]></source>
<year>2001</year>
<publisher-loc><![CDATA[Farmington Hills, MI ]]></publisher-loc>
<publisher-name><![CDATA[American Concrete Institute]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="book">
<collab>ACI-544.1-96</collab>
<source><![CDATA[State-of-the-art report on fiber reinforced concrete. Reporte del ACI Committee 544]]></source>
<year>1996</year>
<publisher-loc><![CDATA[Farmington Hills, MI ]]></publisher-loc>
<publisher-name><![CDATA[American Concrete Institute]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barros]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrara]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Martinelli]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<source><![CDATA[Recent Advances on Green Concrete for Structural Purposes. The Contribution of the EU-FP7 Project EnCoRe]]></source>
<year>2017</year>
<publisher-loc><![CDATA[Milano ]]></publisher-loc>
<publisher-name><![CDATA[Springer]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Caggiano]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Folino]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Lima]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Martinelli]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Pepe]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On the mechanical response of Hybrid Fiber Reinforced Concrete with Recycled and Industrial Steel Fibers]]></article-title>
<source><![CDATA[Construction and Building Materials]]></source>
<year>2017</year>
<volume>147</volume>
<page-range>286-95</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Caggiano]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Xargay]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Martinelli]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Experimental and numerical characterization of the bond behavior of steel fibers recovered from waste tires embedded in cementitious matrices]]></article-title>
<source><![CDATA[Cem. Concr. Compos]]></source>
<year>2015</year>
<volume>62</volume>
<page-range>146-55</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="">
<collab>EU-Directive 1999/31/EC</collab>
<source><![CDATA[Council of 26 April 1999 on the landfill of waste]]></source>
<year>1999</year>
<page-range>1-19</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Folino]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Xargay]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Recycled aggregate concrete - Mechanical behavior under uniaxial and triaxial compression]]></article-title>
<source><![CDATA[Construction and Building Materials]]></source>
<year>2014</year>
<volume>56</volume>
<page-range>21-31</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gursel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Masanet]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Horvath]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Stadel]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Life-cycle inventory analysis of concrete production: a critical review]]></article-title>
<source><![CDATA[Cement and Concrete Composites]]></source>
<year>2014</year>
<volume>51</volume>
<page-range>38-48</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lima]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Caggiano]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Faella]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Martinelli E.]]></surname>
<given-names><![CDATA[M.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Realfonzo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical properties and mechanical behavior of concrete made with recycled aggregates and fly ash]]></article-title>
<source><![CDATA[Construction and Building Materials]]></source>
<year>2013</year>
<volume>47</volume>
<page-range>547-59</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martinelli]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Caggiano]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Xargay]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An experimental study on the post-cracking behaviour of Hybrid Industrial/Recycled Steel Fibre-Reinforced Concrete]]></article-title>
<source><![CDATA[Construction and Building Materials]]></source>
<year>2015</year>
<volume>94</volume>
<page-range>290-8</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martinelli]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Koenders]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Caggiano]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A numerical recipe for modelling hydration and heat flow in hardening concrete]]></article-title>
<source><![CDATA[Cem. Concr. Compos]]></source>
<year>2013</year>
<volume>40</volume>
<page-range>48-58</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Palacio-León]]></surname>
<given-names><![CDATA[Ó.]]></given-names>
</name>
<name>
<surname><![CDATA[Chávez-Porras]]></surname>
<given-names><![CDATA[Á.]]></given-names>
</name>
<name>
<surname><![CDATA[Velásquez-Castiblanco]]></surname>
<given-names><![CDATA[Y.L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación y comparación del análisis granulométrico obtenido de agregados naturales y reciclados]]></article-title>
<source><![CDATA[Tecnura]]></source>
<year>2017</year>
<volume>21</volume>
<numero>53</numero>
<issue>53</issue>
<page-range>96-106</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pepe]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Koenders]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Faella]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Martinelli]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Structural concrete made with recycled aggregates: Hydration process and compressive strength models]]></article-title>
<source><![CDATA[Mech. Res. Commun]]></source>
<year>2014</year>
<volume>58</volume>
<page-range>139-45</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ripani]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Etse]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Vrech]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Recycled aggregate concrete: Localized failure assessment in thermodynamically consistent non-local plasticity framework]]></article-title>
<source><![CDATA[Computers and Structures]]></source>
<year>2017</year>
<volume>178</volume>
<page-range>47-57</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Robayo-Salazar]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mattey-Centeno]]></surname>
<given-names><![CDATA[P.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Silva-Urre-go]]></surname>
<given-names><![CDATA[Y.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Burgos-Galindo]]></surname>
<given-names><![CDATA[D.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Arjona]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Los residuos de la construcción y demolición en la ciudad de Cali: un análisis hacia su gestión, manejo y aprovechamiento]]></article-title>
<source><![CDATA[Tecnura]]></source>
<year>2015</year>
<volume>19</volume>
<numero>44</numero>
<issue>44</issue>
<page-range>157-70</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<collab>UNI-11039-2</collab>
<source><![CDATA[Steel fibre reinforced concrete-Test method to determine the first crack strength and ductility indexes]]></source>
<year>2003</year>
<publisher-loc><![CDATA[Milán, Italia ]]></publisher-loc>
<publisher-name><![CDATA[UNI Editions]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Villegas-Flores]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Parapinski dos Santos]]></surname>
<given-names><![CDATA[A. C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Análisis de indicadores para determinar el grado de sostenibilidad en concretos especiales]]></article-title>
<source><![CDATA[Tecnura]]></source>
<year>2013</year>
<volume>17</volume>
<numero>38</numero>
<issue>38</issue>
<page-range>12-25</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<collab>World Commission on Environment and Development</collab>
<source><![CDATA[WCED Our common future]]></source>
<year>1987</year>
<publisher-loc><![CDATA[Oxford ]]></publisher-loc>
<publisher-name><![CDATA[Oxford University Press]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
