Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13087/689
Title: MECHANICAL ACTIVATION OF FLY ASH: PHYSICAL, MINERALOGICAL AND MORPHOLOGICAL CHARACTERIZATION OF GROUND FLY ASHES
Authors: Dikmen, Sedef
Dikmen, Zafer
Yılmaz, Gülgün
Fırat, Seyhan
Issue Date: 2019
Abstract: In this study, physical, mineralogical and morphological characteristics of mechanically treated fly ashes are investigated. The compositional analysis of the raw fly ash was determined using X-ray fluorescence (XRF) technique. The XRD patterns reveal that the main phase quartz along with mullite and anhydrite. The raw fly ash was also wet ground using a laboratory mill, for several different times (from 2 to 16 hours) in order to examine how the grinding increases the activity of the fly ash. The ground fly ash was characterized for (i) particle size distribution: laser diffraction method, (ii) specific surface area: BETmethod, (iii) crystalline structure: X-ray diffractometer, and (iv) morphology of particles: scanning electron microscope. According to physical characterization, fineness increasing of samples with grinding time was observed, but loss of effectiveness occurred for grinding time longer than 12 hours. In addition, the unmilled fly ash showed lower specific surface area, due to the presence of cenospheres in the original fly ash. Only a little change in crystalline structure of fly ashes was observed when grinding and there were changes in the area and height of each diffraction peak.
URI: https://doi.org/10.18038/estubtda.637927
https://hdl.handle.net/20.500.13087/689
https://search.trdizin.gov.tr/yayin/detay/359327
ISSN: 1302-3160
2667-4211
Appears in Collections:Fizik Bölümü Koleksiyonu
TR-Dizin İndeksli Yayınlar Koleksiyonu

Show full item record

CORE Recommender

Page view(s)

24
checked on Oct 3, 2022

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.