Thesis Estudio de morteros aligerados con agregados de plástico y caucho reciclado
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Date
2018-11
Authors
Journal Title
Journal ISSN
Volume Title
Program
Construcción Civil
Departament
Campus
Campus Casa Central Valparaíso
Abstract
El presente estudio pretende analizar la factibilidad técnica de utilizar como áridos en el mortero de cemento residuos plásticos y caucho proveniente de neumáticos en desuso. Para este objetivo se elaboraron muestras de hormigones livianos, sustituyendo una fracción de arena por gránulos de polietileno de alta y baja densidad, en tanto que en otras se utilizó fibras de caucho comparando su desempeño a la resistencia a la compresión, densidad y trabajabilidad con respecto a un mortero convencional. Para caracterizar estos tipos de hormigones se realizaron ensayos de docilidad y compresión simple a probetas de mortero con porcentajes de sustitución de un 10%, 30% y 50% en el caso de las muestras que se incorporó caucho y de un 10%, 20% y 30% en las que se incorporó polietilenos. Producto del análisis muestral, se determinó que al agregar materiales poliméricos a las mezclas de mortero se obtiene una disminución de las propiedades estudiadas acompañado de un aumento en la ductilidad del material apreciable en la mayoría de las dosificaciones. Los resultados observados indican que los morteros con agregados de desechos poliméricos después de 28 días de curado muestran una disminución significativa en la resistencia a la compresión. Las muestras presentan una densidad de 1700 - 2200 [kg/m3], con una resistencia a la compresión menor a 30 [MPa]. Es posible observa que(...).
This study aims to analyze the technical feasibility of using plastic and rubber waste from disused tires, in partial replacement of sand and gravel in cement mortar. For this purpose, samples of lightweight concrete were created to replace a sand fraction, a part of the fraction was replaced by high and low density of polyethylene granules; in others, rubber fibers were used to compare the performance in terms of strength, compression, density and workability with respect to a conventional mortar. To characterize these types of concretes were used a docility and simple compression tests to mortar test pieces with substitution percentages of 10%, 30% and 50% in the case of the samples that the rubber was incorporated, and 10%, 20% and 30% in which polyethylenes were incorporated. The product of the sample analysis determined that when adding polymeric materials to the mortar mixtures, it obtained a reduction in the properties studied, an increase in the ductility of the material that is appreciable in most dosages. The results indicated that mortars with aggregates of polymer waste in a curing time of 28 days showed a significant decrease in compressive strength. The samples have a density of 1700 - 2200 [kg / m3], with a compressive strength of less than 30 [MPa]. It is possible to observe that (...).
This study aims to analyze the technical feasibility of using plastic and rubber waste from disused tires, in partial replacement of sand and gravel in cement mortar. For this purpose, samples of lightweight concrete were created to replace a sand fraction, a part of the fraction was replaced by high and low density of polyethylene granules; in others, rubber fibers were used to compare the performance in terms of strength, compression, density and workability with respect to a conventional mortar. To characterize these types of concretes were used a docility and simple compression tests to mortar test pieces with substitution percentages of 10%, 30% and 50% in the case of the samples that the rubber was incorporated, and 10%, 20% and 30% in which polyethylenes were incorporated. The product of the sample analysis determined that when adding polymeric materials to the mortar mixtures, it obtained a reduction in the properties studied, an increase in the ductility of the material that is appreciable in most dosages. The results indicated that mortars with aggregates of polymer waste in a curing time of 28 days showed a significant decrease in compressive strength. The samples have a density of 1700 - 2200 [kg / m3], with a compressive strength of less than 30 [MPa]. It is possible to observe that (...).
Description
Keywords
Áridos reciclados, Mortero de cemento, Hormigón liviano, Materiales poliméricos, Sustitución de arena, Sostenibilidad en materiales de construcción
