Thermal characterization of different origin class-G cements

KÖK M. V.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, vol.115, no.2, pp.1533-1539, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 115 Issue: 2
  • Publication Date: 2014
  • Doi Number: 10.1007/s10973-013-3506-4
  • Journal Name: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1533-1539
  • Keywords: Cement, Thermogravimetry, Differential scanning calorimeter, Kinetics, PORTLAND-CEMENT, KINETIC-ANALYSIS, COMBUSTION, HYDRATION
  • Middle East Technical University Affiliated: Yes

Abstract

In this study, thermal characteristics and kinetics of three different origin class-G cements (Mix, Bolu, and Nuh) were studied using thermogravimetry (TG/DTG) and differential scanning calorimeter (DSC). In DSC curves at different heating rates a number of peaks were observed consistently in different temperature intervals. TG/DTG is used to identify the detected phases and the corresponding mass loss. In the dehydration kinetic study of the different origin class-G cement samples, three different methods (Arrhenius, Kissinger, and Augis & Bennett) is used to determine the dehydration kinetic parameters of the cement samples and the results are discussed.