EVALUACIÓN DE LA TÉCNICA DE APLICACIÓN Y RESISTENCIA DEL CONCRETO LANZADO EN MINAS MEDIANTE LA METODOLOGÍA EFNARC
DOI:
https://doi.org/10.36790/epistemus.v11i22.42Keywords:
Concreto lanzado, EFNARC, FibrasAbstract
El concreto lanzado es una mezcla de cemento, agregados y agua proyectado neumáticamente; es utilizado como medio de soporte en las obras mineras y la adición de fibras a la mezcla puede cambiar las propiedades de resistencia a la compresión del concreto. El objetivo es determinar valores de la resistencia a la compresión de las mezclas de cemento, agregados, agua y fibras plásticas y de acero mediante la metodología EFNARC y con ello determinar la pertinencia del uso de fibras además de evaluar las técnicas de lanzado in-situ del concreto. Los resultados indican que no existe variación significativa en la resistencia del concreto lanzado al utilizar fibras de acero o fibras plásticas. Modificaciones en la técnica de lanzado fueron sugeridas. Se determinó necesario continuar con pruebas que validen la calidad de los materiales utilizados en la fabricación del concreto lanzado.
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References
Roman Jorge López. “Análisis de las propiedades del concreto reforzado con fibras cortas de acero y macrofibras de polipropileno: influencia del tipo y consumo de fibra adicionada”. Tesis de maestría, Instituto de Ingeniería. UNAM, 2015.
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EFNARC. European Specifications for sprayed concrete, Guidelines for specifiers and contractors, EFNARC, ISBN 0-9522483-6-0 © 1999.
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