<?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>1405-7743</journal-id>
<journal-title><![CDATA[Ingeniería, investigación y tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. invest. y tecnol.]]></abbrev-journal-title>
<issn>1405-7743</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-77432023000400008</article-id>
<article-id pub-id-type="doi">10.22201/fi.25940732e.2023.24.4.032</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Calibración y verificación de la recuperación de un ligante asfáltico en tricloroetileno mediante el equipo de rotavapor]]></article-title>
<article-title xml:lang="en"><![CDATA[Calibration and verification of the recovery of an asphalt binder in trichloroethylene by means of the rotavapor]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Limeta-Dionet]]></surname>
<given-names><![CDATA[Esbeydi Janet]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado-Alamilla]]></surname>
<given-names><![CDATA[Horacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Lara]]></surname>
<given-names><![CDATA[Teresa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Transporte  ]]></institution>
<addr-line><![CDATA[Querétaro ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>24</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432023000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432023000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432023000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El presente trabajo evalúa las temperaturas de extracción por el método de Rotavapor, con el objetivo de encontrar la temperatura óptima de extracción para minimizar el endurecimiento por calor y maximizar la recuperación del disolvente en el ligante asfáltico. Para comprobar el impacto que ocasiona la temperatura en el ligante asfáltico se empleó el equipo Reómetro de corte dinámico (DSR, por sus siglas en inglés), donde se midió el desempeño con el parámetro G*/sen &#948;, asimismo, se evaluó la deformación con el ensayo de Recuperación Elástica por Creep Repetido (MSCR). Cabe destacar que la normativa determina que la evaluación se debe realizar con asfalto producto de RTFO, pero para fines de investigación en la etapa uno y dos, se realizó en condición original. El estudio consta de tres etapas: En la primera etapa se realizó la &#8220;Calibración del ensayo&#8221; para determinar un procedimiento que asegure la reproducibilidad de las mediciones sin afectar las características del ligante evaluado, se tomaron porciones de 10 y 30 g de un ligante asfáltico sin modificar, los cuales fueron disueltos en tricloroetileno para posteriormente hacer las recuperaciones en el Rotavapor a temperaturas de 110 y 140 °C. Basándose en los resultados obtenidos se prosiguió con la segunda etapa, la cual consistió en verificar si la condición establecida era válida para cualquier tipo de ligante. Finalmente, se fabricó mezcla con los dos tipos de ligante asfáltico evaluados en las etapas anteriores. Los resultados obtenidos muestran que la temperatura de extracción óptima es a 140 °C, sin embargo, se recomienda ampliar la investigación con pruebas químicas para medir el efecto asociado al envejecimiento en el RTFO (se observó que este ensayo envejece más que un proceso de laboratorio) y comprobar si en un ligante sin modificar el envejecimiento compensa el reblandecimiento por el solvente; en el caso del ligante modificado probar si es más importante el efecto del solvente que el envejecimiento en el RTFO, ya que con los resultados obtenidos en la prueba del MSCR, se tuvo variaciones de hasta 234.4 %.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The present work evaluates the extraction temperatures by the Rotavapor method, with the objective of finding the optimal extraction temperature to minimize heat hardening and maximize solvent recovery in the asphalt binder. To check the impact caused by the temperature on the asphalt binder, the Dynamic Shear Rheometer (DSR) was used, where the performance was measured with the parameter G*/sen &#948;, likewise the deformation was evaluated with the Repeat Creep Elastic Recovery Test (MSCR). It is worth mentioning that the specific regulation that the evaluation must be done with asphalt produced by RTFO, but for research purposes it was done as in the original condition. The study consists of three stages: in the first stage the "Test Calibration" was done to determine a procedure that would ensure the reproducibility of the measurements without affecting the characteristics of the evaluated binder, 10 and 30 g portions of an unmodified asphalt binder were taken, which were dissolved in trichlorethylene, to later make the recoveries in the Rotavapor at temperatures of 110 and 140 °C. Based on the results obtained, the second stage was followed, which consisted of verifying if the established condition was valid for any type of binder. Finally, a mixture was produced with the two types of asphalt binder evaluated in the previous stages. The results obtained show that the optimum extraction temperature is 140 °C, however, it is recommended to extend the investigation with chemical tests, to determine a procedure for modified binders, since with the results obtained in the MSCR test, there were variations of up to 234.4 %. It was also concluded that the RTFO test ages the asphalt binder more than the mixing and compaction done in the laboratory for the fabrication of specimens.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[RAP]]></kwd>
<kwd lng="es"><![CDATA[rotavapor]]></kwd>
<kwd lng="es"><![CDATA[tricloroetileno]]></kwd>
<kwd lng="es"><![CDATA[ligante asfáltico]]></kwd>
<kwd lng="es"><![CDATA[DSR]]></kwd>
<kwd lng="en"><![CDATA[RAP]]></kwd>
<kwd lng="en"><![CDATA[rotavapor]]></kwd>
<kwd lng="en"><![CDATA[trichloroethylene]]></kwd>
<kwd lng="en"><![CDATA[asphalt binder]]></kwd>
<kwd lng="en"><![CDATA[DSR]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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