<?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>S2007-68352021000100007</article-id>
<article-id pub-id-type="doi">10.21041/ra.v11i1.493</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Fiber reinforced shotcrete control tests in the Mexico City metro line 12 tunnel]]></article-title>
<article-title xml:lang="pt"><![CDATA[Ensaios de controle de concreto projetado com fibra no túnel da linha 12 do metrô CDMX]]></article-title>
<article-title xml:lang="es"><![CDATA[Ensayos de control del concreto lanzado con fibras en el túnel de la línea 12 del metro de la CDMX]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aire]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Ingeniería Estructural Instituto de Ingeniería]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>11</volume>
<numero>1</numero>
<fpage>73</fpage>
<lpage>87</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-68352021000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-68352021000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-68352021000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In this paper three tests are evaluated to characterize the behavior of shotcrete with steel fibers in the primary lining of Mexico City metro line 12 tunnel. Three square panels (UNE 14488-5), three round panels (ASTM C1550) and four cylinders for the Barcelona test (UNE 83515) were made. All of them can be used as quality control methods for Fiber Reinforced Concrete (FRC) in underground constructions, however, greater variability was found in the results of round panels, in addition to being the highest complexity samples regarding their development and test, therefore, the application of the Barcelona test is recommended for quality control on site due to the fact that the samples and test are easier to prepare, handle and execute.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Neste artigo três ensaios são avaliados para caracterizar o comportamento do concreto projetado com fibras metálicas no revestimento primário do túnel da linha 12 do metrô CDMX. Três painéis quadrados (UNE 14488-5), três painéis redondos (ASTM C1550) e quatro cilindros para ensaio de Barcelona (UNE 83515) foram feitos. Todos podem ser utilizados como métodos de controle de qualidade para Concreto Reforçado com Fibras (CRF) em construções subterrâneas, porém, constatou-se maior variabilidade nos resultados dos painéis circulares, além de serem os corpos de prova com maior complexidade para sua elaboração e ensaio, portanto, a aplicação do ensaio de Barcelona é recomendada para controle de qualidade no local porque é mais fácil de preparar, manusear e realizar amostragem e ensaio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este artículo se evalúan tres ensayos para caracterizar el comportamiento del Concreto Lanzado con fibras metálicas en el revestimiento primario del túnel de la línea 12 del metro de la CDMX. Se elaboraron tres paneles cuadrados (UNE 14488-5), tres paneles redondos (ASTM C1550) y cuatro cilindros para ensayo Barcelona (UNE 83515). Todos se pueden utilizar como métodos de control de Calidad para Concretos Reforzados con Fibras (CRF) en construcciones subterráneas, sin embargo, se encontró mayor variabilidad en los resultados de los paneles circulares, además de ser estos los especímenes con mayor complejidad para su elaboración y ensayo, por lo tanto, se recomienda la aplicación del ensayo Barcelona para el control de calidad en obra debido a que resulta más sencilla la preparación, manipulación y ejecución del muestreo y ensayo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[fiber reinforced shotcrete]]></kwd>
<kwd lng="en"><![CDATA[energy absorption]]></kwd>
<kwd lng="en"><![CDATA[round panels test, square panel test]]></kwd>
<kwd lng="en"><![CDATA[Barcelona test.]]></kwd>
<kwd lng="pt"><![CDATA[concreto projetado reforçado com fibra]]></kwd>
<kwd lng="pt"><![CDATA[absorção de energia; ensaio de painel circular, ensaio de painel quadrado]]></kwd>
<kwd lng="pt"><![CDATA[ensaio de Barcelona]]></kwd>
<kwd lng="es"><![CDATA[concreto lanzado reforzado con fibras]]></kwd>
<kwd lng="es"><![CDATA[absorción de energía]]></kwd>
<kwd lng="es"><![CDATA[ensayo de paneles circulares, ensayo de paneles cuadrados]]></kwd>
<kwd lng="es"><![CDATA[ensayo Barcelona.]]></kwd>
</kwd-group>
</article-meta>
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