1. Home page
  2. Search

Thermal treatment of kaolin: The effect of mineralogy on the pozzolanic activity

This item is provided by the institution :
National Technical University of Athens   

Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA   

see the original item page
in the repository's web site and access all digital files if the item*



Thermal treatment of kaolin: The effect of mineralogy on the pozzolanic activity (EN)
Badogiannis, E (EN)
Kakali, G (EN)
Tsivilis, S (EN)
Perraki, T (EN)
journalArticle (EN)
2014-03-01T01:17:16Z
2001 (EN)
This paper reports an investigation on the effect of mineralogy on the pozzolanic activity of fired kaolin. Representative samples of Greek kaolin (Milos Island) and a commercial kaolin of high purity are studied. The samples are tested by X-ray diffraction (XRD), Differential Thermal Analysis (DTA) and Infrared (IR) Spectroscopy in order to determine their mineralogical composition and structural differences. Calcination of samples is carried out at 650 degreesC for 3 h. The decomposition of kaolinite and alunite is recorded using methods of thermal analysis. The resultant products are identified by XRD. The reactivity of the thermally treated samples is evaluated based on Chapelle test. It is concluded that the pozzolanic activity of metakaolinite is strongly related to the crystallinity of the original kaolinite. Well-ordered kaolinite is transformed into less reactive metakaolinite. (C) 2001 Elsevier Science B.V. All rights reserved. (EN)
Mineralogy (EN)
Infrared spectroscopy (EN)
Heat treatment (EN)
Mineralogy (EN)
Metakaolinite (EN)
mineralogy (EN)
Calcination (EN)
thermal alteration (EN)
Differential thermal analysis (EN)
Thermoanalysis (EN)
X ray diffraction analysis (EN)
cement (EN)
kaolin (EN)
Kaolin (EN)
Pozzolanic activity (EN)
Applied Clay Science (EN)
English
ELSEVIER SCIENCE BV (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)