<?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>S2007-68352018000300280</article-id>
<article-id pub-id-type="doi">10.21041/ra.v8i3.324</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A holistic conceptual approach to concrete service life: a split into different time-stages]]></article-title>
<article-title xml:lang="es"><![CDATA[Un enfoque conceptual holístico para la vida de servicio del concreto: división en diferentes etapas de tiempo]]></article-title>
<article-title xml:lang="pt"><![CDATA[Uma abordagem conceitual holística para a vida útil das estruturas de concreto: divisão em diferentes estágios de tempo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-Borges]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Helene]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación y Estudios Avanzados ]]></institution>
<addr-line><![CDATA[Mérida Yucatán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade de São Paulo Escola Politécnica ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>8</volume>
<numero>3</numero>
<fpage>280</fpage>
<lpage>287</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-68352018000300280&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-68352018000300280&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-68352018000300280&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The goal of this paper is to analyze and discuss a conceptual approach that considers the holistic character of concrete service life but splits it into seven time-stages that can be compared, for understanding purposes, with those of a human being. The existing concepts about service life may be incomplete regarding those that must consider the whole life of a concrete structure. One of the reasons for this is the lack of certainty of the service life predictions which are based on models that consider a series of non-clearly defined time-stages. The life of a structure has many similarities with that of a human being. In fact, it is no coincidence that engineering has adopted some terms from the medical sciences like &#8220;pathology&#8221; to refer to structures with problems of &#8220;health&#8221;. The paper discusses the overlapping of the different time-stages as well as the reasons why the prediction models can fail.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo de este documento es analizar y discutir un enfoque conceptual que considera el carácter holístico de la vida de servicio concreta, pero lo divide en siete etapas de tiempo que se pueden comparar, para fines de comprensión, con las de un ser humano. Los conceptos existentes sobre la vida útil pueden ser incompletos con respecto a aquellos que deben considerar toda la vida de una estructura concreta. Una de las razones para esto es la falta de certeza de las predicciones de la vida útil que se basan en modelos que consideran una combinación de etapas de tiempo no claramente definidas. La vida de una estructura tiene muchas similitudes con la de un ser humano. De hecho, no es coincidencia que la ingeniería haya adoptado algunos términos de las ciencias médicas como "patología" para referirse a estructuras con problemas de "salud". El documento analiza la superposición de las diferentes etapas de tiempo, así como las razones por las que los modelos de predicción pueden fallar.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO O objetivo deste artigo é analisar e discutir uma abordagem conceitual que considere o caráter holístico da vida útil das estruturas de concreto, dividida em sete estágios de tempo que podem ser comparados, para fins de compreensão, com os de um ser humano. Os conceitos existentes sobre a vida útil podem estar incompletos em relação àqueles que devem considerar toda a vida de uma estrutura de concreto. Uma das razões para isso é a falta de certeza das previsões de vida útil baseadas em modelos que consideram uma mistura de estágios não claramente definidos. A vida de uma estrutura tem muitas semelhanças com a de um ser humano. De fato, não é coincidência que a engenharia tenha adotado alguns termos das ciências médicas como &#8220;patologia&#8221; para se referir a estruturas com problemas de &#8220;saúde&#8221;. O artigo discute a sobreposição dos diferentes estágios de tempo, bem como as razões pelas quais os modelos de previsão podem falhar.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[service life]]></kwd>
<kwd lng="en"><![CDATA[durability]]></kwd>
<kwd lng="en"><![CDATA[structure]]></kwd>
<kwd lng="es"><![CDATA[vida de servicio]]></kwd>
<kwd lng="es"><![CDATA[durabilidad]]></kwd>
<kwd lng="es"><![CDATA[estructura]]></kwd>
<kwd lng="pt"><![CDATA[vida útil]]></kwd>
<kwd lng="pt"><![CDATA[durabilidade]]></kwd>
<kwd lng="pt"><![CDATA[estrutura]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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