Análisis del efecto de la compactación de la losa de hormigón y cantidad de finos en la base granular sobre la resistencia a la flexotracción y la permeabilidad de un hormigón poroso para su uso en pavimentos permeables de estacionamientos.
Loading...
Date
2024
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad de Concepción
Abstract
El constante crecimiento de las ciudades ha llevado a un aumento en las superficies impermeables, provocando problemas de escorrentía superficial y riesgos de inundaciones durante las lluvias. Los pavimentos permeables contribuyen a abordar parte de esta problemática al permitir que el agua se infiltre por su estructura. El desafío de la implementación de estos pavimentos permeables es lograr resistencia y permeabilidad adecuada dependiendo de su aplicación, para esto es importante determinar el nivel de compactación y conocer la interacción hormigón permeable y base granular, aspecto que ha sido poco estudiada en la literatura especializada.
Esta investigación ha demostrado que la compactación de la losa de hormigón y la cantidad de finos en la base granular influyen parcialmente en la resistencia a la flexotracción y la permeabilidad del hormigón poroso para pavimentos permeables. La compactación 0,13 MPa. afecta positivamente la resistencia en un 5,45%, pero reduce la permeabilidad en un 50% en comparación con una compactación menor.
Para la base granular, se ha concluido que no tiene un impacto significativo sobre la permeabilidad del pavimento, siempre y cuando la losa posea una permeabilidad adecuada a nivel internacional. Además, se ha demostrado que una base comercial con un rango de fino inferior a un 7,6% no afecta a la permeabilidad.
Este estudio contribuye al conocimiento al permitir una mayor utilización del hormigón permeable, al optimizar su compactación y permitir el uso bases comerciales sin necesidad de bases especiales.
The constant growth of cities has led to an increase in impervious surfaces, causing problems of surface runoff and risks of flooding during rains. Permeable pavements help address part of this problem by allowing water to infiltrate through their structure. The challenge of implementing these permeable pavements is to achieve adequate resistance and permeability depending on their application. For this, it is important to determine the level of compaction and know the interaction of permeable concrete and granular base, an aspect that has been little studied in the specialized literature. This research has shown that the compaction of the concrete slab and the amount of fines in the granular base partially influence the flexural strength and permeability of porous concrete for permeable pavements. Compaction positively affects strength by 5.45%, but reduces permeability by 50% compared to minor compaction. For the granular base, it has been concluded that it does not have a significant impact on the permeability of the pavement, as long as the slab has adequate permeability. Furthermore, it has been shown that a commercial base with a fineness range of less than 7.6% does not affect permeability. This study contributes to knowledge by allowing greater use of permeable concrete, by optimizing its compaction and allowing the use of commercial bases without the need for special bases.
The constant growth of cities has led to an increase in impervious surfaces, causing problems of surface runoff and risks of flooding during rains. Permeable pavements help address part of this problem by allowing water to infiltrate through their structure. The challenge of implementing these permeable pavements is to achieve adequate resistance and permeability depending on their application. For this, it is important to determine the level of compaction and know the interaction of permeable concrete and granular base, an aspect that has been little studied in the specialized literature. This research has shown that the compaction of the concrete slab and the amount of fines in the granular base partially influence the flexural strength and permeability of porous concrete for permeable pavements. Compaction positively affects strength by 5.45%, but reduces permeability by 50% compared to minor compaction. For the granular base, it has been concluded that it does not have a significant impact on the permeability of the pavement, as long as the slab has adequate permeability. Furthermore, it has been shown that a commercial base with a fineness range of less than 7.6% does not affect permeability. This study contributes to knowledge by allowing greater use of permeable concrete, by optimizing its compaction and allowing the use of commercial bases without the need for special bases.
Description
Tesis presentada para optar al grado académico de Magister en Ciencias de la Ingeniería con Mención en Ingeniería Civil
Keywords
Losas de hormigón, Hormigón liviano, Estructuras de hormigón