Hormigones con cenizas volantes
Cargando...
Archivos
Fecha
2003
Profesor/a Guía
Facultad/escuela
Idioma
es
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
La presente memoria tiene por finalidad conocer el comportamiento de las cenizas volantes en las propiedades del hormigón tanto en estado fresco como endurecido, por cuanto en nuestro país la producción de energía eléctrica a través de centrales Termoeléctricas ha tenido un fuerte impulso en las últimas décadas, producto· de las necesidades en la zona norte de nuestro país.
Las plantas de este tipo que utilizan el carbón como fuente de energía, por razones de tipo medioambientales, deben contar con colectores de partículas muy finas en sus chimeneas de evacuación de gases, las que corresponden a las denominadas cenizas volantes.
A nivel mundial la disposición de estas cenizas es un problema importante por las regulaciones de tipo ambientales, incrementando los costos de producción, como resultado del transporte y de la mantención de estos desechos en botaderos aptos para este objetivo.
Lo mencionado ha llevado a investigar los usos alternativos de estos subproductos en construcción, agricultura entre otros rubros económicos.
En la tecnología del hormigón las cenizas volantes por su alto contenido de productos silicios y aluminosos, actúan como adiciones de tipo puzolánicas, con efectos positivos en el hormigón fresco como endurecido.
The objective of the present investigation is to know the behavior of the Fly — Ash in the concrete properties, both in fresh and in hard condition. The production of power in steam electric power plants, has had a great increment over the last decades, due to the necessity of new sources of electricity in the northern zone of our country. This kind of plant, utilizing coal as energy source, because of environmental reasons, must count with a very fine particle collector in their fume evacuation chimneys, particles which correspond to the denominated fly ash. Worldwide, the disposition of these ashes is an important issue because of the environmental regulations, increasing the costs of production as a result of the transportation and maintenance of these wastes in appropriate spoil banks. The above has led to investigate about the alternative uses of these sub-products in construction and agriculture, amongst other economical branches. In concrete technology, fly ashes, for their high contents of siliceous and aluminous products, act as pozzolanic kind of addition, with positive effects not only in fresh but also in hard concrete.
The objective of the present investigation is to know the behavior of the Fly — Ash in the concrete properties, both in fresh and in hard condition. The production of power in steam electric power plants, has had a great increment over the last decades, due to the necessity of new sources of electricity in the northern zone of our country. This kind of plant, utilizing coal as energy source, because of environmental reasons, must count with a very fine particle collector in their fume evacuation chimneys, particles which correspond to the denominated fly ash. Worldwide, the disposition of these ashes is an important issue because of the environmental regulations, increasing the costs of production as a result of the transportation and maintenance of these wastes in appropriate spoil banks. The above has led to investigate about the alternative uses of these sub-products in construction and agriculture, amongst other economical branches. In concrete technology, fly ashes, for their high contents of siliceous and aluminous products, act as pozzolanic kind of addition, with positive effects not only in fresh but also in hard concrete.
Notas
Tesis (Constructor Civil)
Palabras clave
Hormigón, Cenizas Volantes