Estudio de las cenizas de fondo de caldera de bagazo y/o carbón como sustituto del clinker y/o adición para mortero por medio de tratamiento químico alcalino

This study evaluated the effect of chemical treatment on fly ash, where four types of ash from 2 mills was sampled to study the effect of an alkaline chemical treatment to help reduce the environmental impact caused by this residue, extracted from boilers cogenerate energy from water vapor, which is used as the combustion material sugarcane bagasse. Fly ash was characterized physically and chemically by ASTM C311, size distribution, XRD, XRF, SEM-EDS, TGA / DTG standard. Determining that the fly ash studied are type F according to ASTM C618 standard. It was found that such ash has high amount of unburned matter which can be removed by physical treatment, to improve their interaction with a cement matrix. Because the finer ash have greater chemical activity facilitating its activation, whereby a separation is necessary. The ashes were treated with sieving, heat treatment at high temperature (600-900 º C), and finally alkaline chemicals (NaOH, KOH). To study the compression behavior of the samples which showed chemical activation. From the ashes studied ash thick cane bagasse has the best chemical conditions for a pozzolan.

• Autores: Solórzano Sánchez, Juan David
• Fecha de publicación: 2014
• Institución: Universidad de San Buenaventura
• Repositorio: Repositorio USB
• Idioma: spa
• OAI Identifier: oai:bibliotecadigital.usb.edu.co:10819/3122
• Acceso en línea: http://hdl.handle.net/10819/3122
• Palabra clave: Ceniza Volante; NaOH; Alkaline; Activation; Cenizas; Impacto ambiental; Cemento; Adherencia (morteros)
• License: http://purl.org/coar/access_right/c_abf2