Caracterización de propiedades fÃsico-mecánicas de rocas Ãgneas utilizadas en obras de infraestructura
Abstract
RESUMEN
Los materiales pétreos se emplean actualmente en casi todos los procesos edificatorios y debido a esto se les realizan diferentes pruebas, pudiendo ser tanto fÃsicas como mecánicas; en éstas, el ensayo de carga puntual normado por ASTM D 5731, describe el empleo del equipo Point Load para determinar la resistencia mecánica en rocas no labradas, con tamaño aproximado de 4 pulgadas de diámetro, determinándose caracterÃsticas mecánicas con alta confiabilidad y facilidad; es método económico porque el equipo se puede llevar al sitio o (banco) cantera, no siendo necesario labrar los especÃmenes. Si además se realizan pruebas fÃsicas como humedad actual, absorción, densidad y gravedad especÃfica, estos resultados ayudan a conocer mejor el comportamiento mecánico de los materiales pétreos, pudiéndose lograr beneficios económicos reflejados en la elaboración del concreto, tanto hidráulico como asfáltico. En este trabajo también se comparan las propiedades fÃsicas y mecánicas de los bancos de materiales de la región de Morelia, Michoacán, México.
Palabras Clave: Materiales pétreos; Point Load; muestra no labrada.
ABSTRACT
Stone materials are currently used in almost all building processes and because of this they perform different tests can be both physical and mechanical , in these, the load test regulated by ASTM D 5731 , describes the use of the instrument Point Load to determine the mechanical strength unhewn rocks , with approximate size of 4 inches in diameter , determining mechanical properties with high reliability and ease , it is economical method because the team can take the site or ( bank) quarry , not necessary till the specimens. If further tests are physical and current humidity, absorption, density, specific gravity, these results help to better understand the mechanical behavior of the stone, being able to achieve an economy, as in the preparation of concrete, hydraulically and asphalt. This paper also compares the physical and mechanical properties of materials banks in the region of Morelia, Michoacan, Mexico
Keywords: stone materials; Point Load; sample worked.
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References
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