<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-22T11:22:25Z</responseDate><request verb="GetRecord" identifier="oai:null:10882/19378" metadataPrefix="oai_dc">https://repository.universidadean.edu.co/server/oai/request</request><GetRecord><record><header><identifier>oai:repository.universidadean.edu.co:10882/19378</identifier><datestamp>2026-07-13T09:00:16Z</datestamp><setSpec>com_10882_83</setSpec><setSpec>com_10882_48</setSpec><setSpec>col_10882_10585</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
   <dc:title>Efecto de la incorporación de caucho reciclado (4%, 5% y 6%) sobre la resistencia a compresión del concreto</dc:title>
   <dc:title>Effect of incorporating recycled rubber (4%, 5% and 6%) on the compressive strength of concret</dc:title>
   <dc:creator>Jiménez Moreno, Luz Dary</dc:creator>
   <dc:creator>Flórez Hoyos, Gernos David</dc:creator>
   <dc:creator>Torres González, Cristian Fabián</dc:creator>
   <dc:contributor>Figueroa Hernández, Diana Paola</dc:contributor>
   <dc:subject>Neumáticos -- Reciclaje</dc:subject>
   <dc:subject>Economía circular</dc:subject>
   <dc:subject>Sostenibilidad</dc:subject>
   <dc:subject>Protección del medio ambiente</dc:subject>
   <dc:subject>Llantas -- Reciclaje</dc:subject>
   <dc:subject>Concreto sostenible</dc:subject>
   <dc:subject>Caucho reciclado</dc:subject>
   <dc:subject>Resistencia a la compresionn</dc:subject>
   <dc:subject>Agregado fino</dc:subject>
   <dc:subject>Economía circular</dc:subject>
   <dc:subject>Sustainable concrete</dc:subject>
   <dc:subject>Recycled rubber</dc:subject>
   <dc:subject>Compressive strength</dc:subject>
   <dc:subject>Fine aggregate</dc:subject>
   <dc:subject>Circular economy</dc:subject>
   <dc:description>La acumulación de neumáticos fuera de uso representa un desafío ambiental significativo a nivel global, generando contaminación en suelos y cuerpos de agua. Simultáneamente, la industria de la construcción demanda grandes volúmenes de agregados naturales, lo que contribuye a la degradación de los ecosistemas. Como alternativa sostenible, la sustitución parcial del agregado fino por caucho reciclado en mezclas de concreto promueve la economía circular y la valorización de residuos. Este estudio evalúa la viabilidad técnica de un concreto con resistencia de diseño de 4000 psi (27.6 MPa), incorporando caucho granulado en porcentajes de sustitución del 4%, 5% y 6% respecto al volumen de arena. La metodología experimental contempla la elaboración de probetas cilíndricas bajo normativas técnicas colombianas, las cuales son sometidas a ensayos de resistencia a la compresión a los 7 y 28 días de curado. Se procede al análisis de los resultados mediante análisis de varianza (ANOVA) y pruebas de Tukey, con el fin de determinar si las mezclas modificadas logran mantener al menos un 85% de la resistencia de la mezcla control, lo que nos demostraría su para aplicaciones no estructurales. Esperamos que la incorporación controlada de partículas de caucho nos de un adecuado balance entre el desempeño mecánico del material y los beneficios ambientales que se deriven de la reducción en el consumo de recursos naturales no renovables.</dc:description>
   <dc:description>
The accumulation of end-of-life tires represents a significant environmental challenge globally, generating pollution in soils and water bodies. Simultaneously, the construction industry demands large volumes of natural aggregates, contributing to the degradation of ecosystems. As a sustainable alternative, the partial substitution of fine aggregate with recycled rubber in concrete mixes promotes the circular economy and waste recovery. This study evaluates the technical feasibility of concrete with a design strength of 4000 psi (27.6 MPa), incorporating granulated rubber in substitution percentages of 4%, 5%, and 6% relative to the volume of sand. The experimental methodology includes the preparation of cylindrical specimens under Colombian technical standards, which are subjected to compressive strength tests at 7 and 28 days of curing. The analysis of the results, based on analysis of variance (ANOVA) and Tukey tests, seeks to determine if the modified mixtures manage to maintain at least 85% of the strength of the control mix, thus establishing their suitability for non-structural applications. It is expected that the controlled incorporation of rubber particles offers an adequate balance between the mechanical performance of the material and the environmental benefits derived from the reduction in the consumption of non-renewable natural resources.
</dc:description>
   <dc:description>Ingeniero Industrial</dc:description>
   <dc:description>Pregrado</dc:description>
   <dc:date>2026-07-13T00:41:28Z</dc:date>
   <dc:date>2026-06-18</dc:date>
   <dc:type>Trabajo de grado - Pregrado</dc:type>
   <dc:type>Trabajo de grado - Pregrado</dc:type>
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   <dc:identifier>BDM-FII</dc:identifier>
   <dc:identifier>instname:Universidad Ean</dc:identifier>
   <dc:identifier>reponame:Repositorio Institucional Biblioteca Digital Minerva</dc:identifier>
   <dc:identifier>https://repository.ean.edu.co/</dc:identifier>
   <dc:language>spa</dc:language>
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Agrawal, D., Waghe, U., Ansari, K., Dighade, R., Amran, M., Qader, D. N., &amp; Fediuk, R. (2023). Experimental effect of pre-treatment of rubber fibers on mechanical properties of rubberized concrete. Journal of Materials Research and Technology, 23, 791–807. https://doi.org/10.1016/J.JMRT.2023.01.027

Alizadeh, M., Eftekhar, M. R., Asadi, P., &amp; Mostofinejad, D. (2024). Enhancing the mechanical properties of crumb rubber concrete through polypropylene mixing via a pre-mixing technique. Case Studies in Construction Materials, 21, e03569. https://doi.org/10.1016/J.CSCM.2024.E03569

ASTM International. (2021, March). ASTM C39/C39M-21: Standard test method for compressive strength of cylindrical concrete specimens. Annual Book of ASTM Standards, Vol. 04.02 – Concrete and Aggregates. ASTM International, West Conshohocken, PA, USA. https://doi.org/10.1520/C0039_C0039M-21

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