<?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>2007-6835</journal-id>
<journal-title><![CDATA[Revista ALCONPAT]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. ALCONPAT]]></abbrev-journal-title>
<issn>2007-6835</issn>
<publisher>
<publisher-name><![CDATA[Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-68352015000100002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cementos híbridos de bajo impacto ambiental: Reducción del factor clinker]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Lodeiro]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández-Jiménez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palomo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Eduardo Torroja Departamento de Cemento y Reciclado de Materiales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>ES</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2015</year>
</pub-date>
<volume>5</volume>
<numero>1</numero>
<fpage>1</fpage>
<lpage>17</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-68352015000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-68352015000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-68352015000100002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[La problemática medioambiental en torno a la fabricación de cemento portland, ha llevado a la comunidad científica a buscar nuevos materiales cementantes alternativos, mas ecoeficientes, y con las mismas prestaciones tecnológicas que las del cemento portland tradicional, en este sentido se han desarrollado los cementos híbridos. Los cementos híbridos alcalinos son interesantes sistemas multicomponente que incorporan elevados contenidos de adiciones minerales (cenizas (FA), metacaolin (MK), escorias (BFS)...) y bajos contenidos de clinker portland (CK) (&lt; 30 %), junto con activadores de moderada alcalinidad. El desarrollo de estos cementos permite una importante reducción en el factor clinker, con el beneficio tanto económico como medioambiental que ello supone. En el presente trabajo se investiga tanto el desarrollo resistente como los productos de reacción generados en diferentes cementos híbridos, constituidos por diversos subproductos industriales y muy bajos contenidos en clinker portland.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The environmental problems posed by Portland cement manufacture have prompted the scientific committee to seek more eco-efficient binders with the same technological features as OPC; hybrid cements are among such alternative materials. Hybrid alkaline cements are multi-component systems containing a high mineral addition (fly ash (FA), metakaolin (MK), blast furnace slag (BFS)) content, low proportions (&lt;30 %) of portland clinker and moderately alkaline activators. The substantially lower amount of clinker needed to manufacture these binders than ordinary Portland cement is both economically and ecologically beneficial. The present study explored strength development and the reaction products generated by several hybrid cements, consisting of a number of industrial by-products and very low Portland clinker contents.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[A questão ambiental em torno da fabricação do cimento Portland levou a comunidade cientifica a buscar por novos materiais cimentícios alternativos, porém ecoeficientes e com prestações tecnológicas semelhantes às do cimento Portland tradicional. Uma alternativa, nesse sentido se desenvolveram os cimentos híbridos. Os cimentos híbridos alcalinos são interessantes sistemas multicomponentes que incorporam elevados conteúdos de adições minerais (cinzas (FA), metacaulim (MK), escórias (BFS)...) e baixos conteúdos de clínquer Portland (CK) (&lt;30%), junto com ativadores de moderada alcalinidade. O desenvolvimento destes cimentos permite uma importante redução do fator clínquer, com benefício econômico e também ambiental. Neste presente trabalho é investigado tanto o desenvolvimento da resistência como os produtos das reações gerados dos cimentos híbridos, constituídos por diferentes produtos industriais e conteúdos baixos de clínquer Portland.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[activación alcalina]]></kwd>
<kwd lng="es"><![CDATA[geopolimero]]></kwd>
<kwd lng="es"><![CDATA[cementos híbridos]]></kwd>
<kwd lng="es"><![CDATA[resistencia mecánica]]></kwd>
<kwd lng="es"><![CDATA[RMN]]></kwd>
<kwd lng="en"><![CDATA[alkaline activation]]></kwd>
<kwd lng="en"><![CDATA[geopolymer]]></kwd>
<kwd lng="en"><![CDATA[hybrid cements]]></kwd>
<kwd lng="en"><![CDATA[mechanical strength]]></kwd>
<kwd lng="en"><![CDATA[NMR]]></kwd>
<kwd lng="pt"><![CDATA[Ativação alcalina]]></kwd>
<kwd lng="pt"><![CDATA[cimento hibrido]]></kwd>
<kwd lng="pt"><![CDATA[resistência mecânica]]></kwd>
<kwd lng="pt"><![CDATA[RMN]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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