Evaluación de cementos de bajo carbono producidos localmente con sustitución del 50% de cemento P-35 por adiciones de polvo de cerámica roja y caliza
Fecha
2016-06-23
Autores
Pérez Manso, Lizabeth
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Editor
Universidad Central “Marta Abreu” de Las Villas. Facultad de Construcciones. Departamento de Ingeniería Civil
Resumen
La producción de cementos ternarios, a pequeña escala, ha sido objeto de investigación por el Centro de Investigación y Desarrollo de Estructuras y Materiales (CIDEM) debido a las diversas ventajas que ofrece. El presente trabajo muestra la formulación de dichos cementos ternarios que propone la sustitución de un 50 % de P-35, por adiciones de polvos de residuos de cerámica roja y caliza en proporción 2:1. Se toma como referencia al cemento Pórtland Puzolánico PP-25.
La fabricación de los cementos LC3-50 L (2:1) y LC3-50 R (2:1) se efectuó a escala de laboratorio y se les realizaron ensayos químicos y físico-mecánicos para su caracterización de acuerdo con las especificaciones establecidas en las normas cubanas. Con estos aglomerantes producidos se elaboraron morteros de albañilería para evaluar su resistencia a flexo-compresión y la absorción de agua por capilaridad. Los resultados de los ensayos fueron analizados estadísticamente mediante el programa Statgraphics, lo que permitió el estudio del comportamiento de estos cementos.
De los cementos obtenidos solo el LC3-50 R (2:1) cumple con los requerimientos establecidos en la norma cubana NC 97: 2011 y las normas internacionales vigentes para cementos de albañilería.
Ternary cements production on a small scale has been subject of research by the Center for Research and Development of Structures and Materials (CIDEM) due to various advantages. The present work shows the formulation of such ternary cements which proposes to replace 50% of P-35, by additions of red ceramic and limestone waste powders in the ratio 2:1. It is taken as a reference the Portland pozzolan cement PP-25. The manufacture of cements LC3-50 L (2:1) and LC3-50 R (2:1) was carried out at laboratory scale and they were object of chemical and physical-mechanical test for its later characterization according to the specifications established in Cuban standards. With these new binders there were developed masonry mortars to evaluate their resistance to flexo-compression and water absorption by capillarity. Tests results were statistically analyzed using the Statgraphics software, which allowed to study the behavior of these cements. From the cements that were produced, only LC3-50 R (2:1) meets the requirements established in the Cuban standard NC 97: 2011 and the existing international standards for masonry cements.
Ternary cements production on a small scale has been subject of research by the Center for Research and Development of Structures and Materials (CIDEM) due to various advantages. The present work shows the formulation of such ternary cements which proposes to replace 50% of P-35, by additions of red ceramic and limestone waste powders in the ratio 2:1. It is taken as a reference the Portland pozzolan cement PP-25. The manufacture of cements LC3-50 L (2:1) and LC3-50 R (2:1) was carried out at laboratory scale and they were object of chemical and physical-mechanical test for its later characterization according to the specifications established in Cuban standards. With these new binders there were developed masonry mortars to evaluate their resistance to flexo-compression and water absorption by capillarity. Tests results were statistically analyzed using the Statgraphics software, which allowed to study the behavior of these cements. From the cements that were produced, only LC3-50 R (2:1) meets the requirements established in the Cuban standard NC 97: 2011 and the existing international standards for masonry cements.
Descripción
Palabras clave
Cementos de Bajo Carbono, Pastas de Cemento P-35, Adiciones de Polvo de Cerámica Roja y Caliza, Cementos Ternarios, Centro de Investigación y Desarrollo de Estructuras y Materiales (CIDEM), Ensayos Químicos y Físico-Mecánicos, Programa Statgraphics, Fabricación de Cementos LC3-50 L (2:1), Fabricación de Cementos LC3-50 R (2:1), Dust, Essays