<?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>0120-5609</journal-id>
<journal-title><![CDATA[Ingeniería e Investigación]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. Investig.]]></abbrev-journal-title>
<issn>0120-5609</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería, Universidad Nacional de Colombia.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-56092022000200202</article-id>
<article-id pub-id-type="doi">10.15446/ing.investig.87120</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The Self-Healing Effect on Bacteria-Enriched Steel Fiber-Reinforced SCC]]></article-title>
<article-title xml:lang="es"><![CDATA[El efecto de autorreparacion en SCC reforzado con fibra de acero enriquecida con bacterias]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Raman]]></surname>
<given-names><![CDATA[Vasudev]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Philip]]></surname>
<given-names><![CDATA[Nivin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baven]]></surname>
<given-names><![CDATA[Nijo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Bharathiar University  ]]></institution>
<addr-line><![CDATA[Tamil Nadu ]]></addr-line>
<country>India</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Mahatma Gandhi University  ]]></institution>
<addr-line><![CDATA[Kerala ]]></addr-line>
<country>India</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Kerala University  ]]></institution>
<addr-line><![CDATA[Kerala ]]></addr-line>
<country>India</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>42</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-56092022000200202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-56092022000200202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-56092022000200202&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Steel fiber reinforced self-compacting concrete is well accepted due to its better resistance against segregation and its effective use in congested reinforcements. It has improved ductile properties, and crack propagation is minimal. As the need for sustainable materials increases all over the world, innovative techniques to make concrete more durable become relevant. Concrete is prone to cracks, which make it vulnerable as they debase it and erode the steel support. Bacterial concrete is a progression of current concrete innovation. Limestone-hastening microscopic organisms are brought into concrete during casting, and, when cracking happens due to dampness, microorganisms contribute to mending the breaks. Thereupon, a blend between self-healing attributes and the qualities of steel fiber-fortified self-compacting concrete is presented. In this paper, micro-silica is utilized to substitute Ordinary Portland Cement by up to 30%. Around 1,5% of steel fiber is used in the concrete mix. 20% is shown as an ideal amount for micro-silica substitution. The performance of self-compacting concrete under specific loads and their impact on healing are examined, as well as the quality of the recovered concrete. An overall increase in elasticity and durability over typical self-compacting concrete is seen.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El concreto autocompactante reforzado con fibras de acero es comúnmente aceptado, dados su mejor resistencia a la segregación y su uso efectivo en refuerzos congestionados. Tiene mejores propiedades dúctiles y la propagación de roturas es mínima. A medida que aumenta la necesidad de materiales sostenibles alrededor del mundo, las técnicas innovadoras para hacer que el concreto sea más durable cobran importancia. El concreto es propenso a las roturas, las cuales lo hacen vulnerable, pues lo degradan y erosionan los soportes de acero. El concreto bacteriano es un avance de la innovación actual en concreto. Los organismos microscópicos que aceleran la piedra caliza se introducen en el concreto durante el colado y, cuando hay roturas por la humedad, los microorganismos contribuyen a repararlas. Por consiguiente, se presenta una mezcla entre los atributos de autorreparación y las cualidades del concreto autocompactante reforzado con fibras de acero. En este artículo se usa microsílice para sustituir Cemento Portland Ordinario hasta en un 30 %. Se utiliza alrededor de 1,5 % de fibras de acero en la mezcla de concreto. Se muestra el 20 % como una cantidad ideal para la sustitución por microsílice. Se examinan el rendimiento del concreto autocompactante bajo cargas específicas y su impacto en la reparación, así como la calidad del concreto recuperado. Se observa un aumento general en la elasticidad y la durabilidad por encima del concreto autocompactante típico.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[self-healing]]></kwd>
<kwd lng="en"><![CDATA[mechanical properties]]></kwd>
<kwd lng="en"><![CDATA[bacteria]]></kwd>
<kwd lng="en"><![CDATA[micro-silica]]></kwd>
<kwd lng="es"><![CDATA[autorreparación]]></kwd>
<kwd lng="es"><![CDATA[propiedades mecánicas]]></kwd>
<kwd lng="es"><![CDATA[bacterias]]></kwd>
<kwd lng="es"><![CDATA[microsílice]]></kwd>
</kwd-group>
</article-meta>
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