Evaluación de las propiedades físico mecánicas en morteros de restauración a partir de cementos de bajo carbono producidos localmente
Fecha
2016-07-02
Autores
Ismael Andres, Calderon Bravo
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Editor
Universidad Central “Marta Abreu” de Las Villas. Facultad de Construcciones. Departamento de Ingeniería Civil
Resumen
La presente investigación muestra la evaluación de las propiedades de los morteros de albañilería para la conservación de morteros históricos, mediante la realización de ensayos físico-mecánicos de acuerdo con las especificaciones establecidas en la norma cubana NC 175:2002. Estos morteros son elaborados a partir de cementos de bajo carbono LC3-50 (2:1) y LC3-60 (2:1), tomando como referencia al cemento Portland Puzolánico PP-25.
Se elaboraron probetas cilíndricas de 15 x 30 cm para la realización del ensayo de permeabilidad al agua, y probetas prismáticas de 40 x 40 x 160 mm para los ensayos de resistencia a flexo–compresión, absorción de agua por capilaridad, densidad aparente en estado endurecido y porosidad abierta. Para analizar y valorar el comportamiento que pueden tener los cementos LC3-50 (2:1) y LC3-60 (2:1) en los morteros de albañilería se confeccionó un diseño experimental, en el que se consideraron las definiciones de variables dependientes, respondiendo a la propiedades de los morteros en sus diferentes estados, y variables independientes, analizando los tipos de cementos.
El análisis de los resultados se realizó mediante el software Statgraphics, lo que permitió el estudio del comportamiento de los cementos LC3-50 (2:1) y LC3-60 (2:1) en morteros de albañilería para su posible uso en la conservación de morteros históricos
This research shows the evaluation of the properties of masonry mortars for the preservation of historical mortars, through physical-mechanical tests according to the specifications in the Cuban standard NC 175:2002. These mortars are made from low carbon cements LC3-50 (2:1) and LC3-60 (2:1), taking the Portland pozzolan cement PP-25 as a reference point. There were made cylindrical specimens of 15 x 30 cm for performing the essay of water permeability, and prismatic specimens of 40 x 40 x 160 mm for testing compressive and flexural strengths, water absorption by capillarity, density in the cured state and open porosity. To analyze and assess the behavior that LC3-50 (2:1) and LC3-60 (2:1) cements may have in masonry mortars, it was made an experimental design, in which there were considered the definitions of dependent variables, responding to the properties of mortars in different states, and independent variables, analyzing the types of cement. The analysis of the results was performed using the Statgraphics software, which made possible the study of the behavior of LC3-50 (2:1) and LC3-60 (2:1) cements in masonry mortars for its possible use in the preservation of historical mortars.
This research shows the evaluation of the properties of masonry mortars for the preservation of historical mortars, through physical-mechanical tests according to the specifications in the Cuban standard NC 175:2002. These mortars are made from low carbon cements LC3-50 (2:1) and LC3-60 (2:1), taking the Portland pozzolan cement PP-25 as a reference point. There were made cylindrical specimens of 15 x 30 cm for performing the essay of water permeability, and prismatic specimens of 40 x 40 x 160 mm for testing compressive and flexural strengths, water absorption by capillarity, density in the cured state and open porosity. To analyze and assess the behavior that LC3-50 (2:1) and LC3-60 (2:1) cements may have in masonry mortars, it was made an experimental design, in which there were considered the definitions of dependent variables, responding to the properties of mortars in different states, and independent variables, analyzing the types of cement. The analysis of the results was performed using the Statgraphics software, which made possible the study of the behavior of LC3-50 (2:1) and LC3-60 (2:1) cements in masonry mortars for its possible use in the preservation of historical mortars.
Descripción
Palabras clave
Propiedades Físico- Mecánicas, Morteros de Restauración, Ensayos Físicos Mecánicos, Norma Cubana NC 175:2002, Cementos de Bajo Carbono LC3-50 (2:1) y LC3-60 (2:1), Cemento Portland Puzolánico PP-25, Software Statgraphics, Essays