<?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>1680-0338</journal-id>
<journal-title><![CDATA[Ingeniería Hidráulica y Ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. hidrául. ambient.]]></abbrev-journal-title>
<issn>1680-0338</issn>
<publisher>
<publisher-name><![CDATA[Centro de Investigaciones Hidráulicas (CIH). Facultad de Ingeniería Civil. Universidad Tecnológica de La Habana "José A. Hecheverría" CUJAE]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1680-03382023000200036</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Juntas defectuosas de tuberías de PEAD y sus causas]]></article-title>
<article-title xml:lang="en"><![CDATA[Defective HDPE pipe joints and their causes]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barreto Torrella]]></surname>
<given-names><![CDATA[Sarah Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[César Leyva]]></surname>
<given-names><![CDATA[Osmany Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Camagüey &#8220;Ignacio Agramonte Loynaz&#8221; Depto. Ingeniería Química ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Empresa de Servicios Ingeniero Hidráulicos ESIH  ]]></institution>
<addr-line><![CDATA[Camagüey ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>44</volume>
<numero>2</numero>
<fpage>36</fpage>
<lpage>49</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1680-03382023000200036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1680-03382023000200036&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1680-03382023000200036&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En este trabajo se identifican los defectos más frecuentes observados en las juntas de tubos de PEAD, soldados por termofusión a tope, en dos obras de la provincia de Camagüey y se determinan sus causas mediante el análisis estadístico de registros en obras e inspecciones y la comparación de los valores obtenidos de los parámetros de soldadura recomendados con los empleados. Se determinó que las principales causas de la aparición de los defectos mostrados son: un exceso de presión manométrica, temperatura y tiempo de formación del cordón inicial aplicados, por violar requisitos del procedimiento exigidos o no adaptarse estos a las condiciones ambientales específicas de Cuba y a las características de los tubos de PEAD de producción nacional.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In this work, the most frequent defects observed in the joints of HDPE pipes, welded by butt thermofusion, in two works in the province of Camagüey are identified and their causes are determined through the statistical analysis of records in works and inspections, the comparison values obtained from the recommended welding parameters with the employed. It was determined that the main causes of the appearance of the defects shown are: an excess of manometric pressure, temperature and time of formation of the initial bead applied, due to violating the requirements of the required procedure or not adapting these to the specific environmental conditions of Cuba and the characteristics of HDPE pipes of national production.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[juntas defectuosas]]></kwd>
<kwd lng="es"><![CDATA[soldadura por termofusión]]></kwd>
<kwd lng="en"><![CDATA[defective joints]]></kwd>
<kwd lng="en"><![CDATA[butt fusion thermofusion welding]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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