Kinetics study of geopolymerization of fly ash using isothermal conduction calorimetry

Nath, S K and Mukherjee, S and Maitra, S and Kumar, Sanjay (2017) Kinetics study of geopolymerization of fly ash using isothermal conduction calorimetry. Journal of Thermal Analysis and Calorimetry, 127(3) (IF-1.953). pp. 1953-1961.

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Abstract

Isothermal conduction calorimetry has been used to study the reaction kinetics of early geopolymerization of fly ash. Fly ash particles were subjected to react with NaOH solution in 2:1 ratio at isothermal temperatures of 34, 39, 45, 52, and 60 A degrees C. The reaction kinetic parameters such as activation energy, rate of reaction, and pre-exponential function were calculated using the rate of heat evolution data. It is observed that the geopolymerization reaction followed a nucleation and growth mechanism. The activation energy obtained from an Arrhenius plot was around similar to 100 kJ mol(-1).

Item Type:Article
Official URL/DOI:https://link.springer.com/article/10.1007/s10973-0...
Uncontrolled Keywords:Fly ash geopolymerization; Isothermal conduction calorimetry; Reaction kinetics; Nucleation and growth; Activation energy
Divisions:Metal Extraction and Forming
ID Code:7594
Deposited By:Sahu A K
Deposited On:18 Aug 2017 09:53
Last Modified:18 Sep 2017 16:45
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