Geopolymerisation of Mechanically Activated Lignite and Brown Coal Fly Ash

Mucsi, G and Molnar, Zoltan and Kumar, Sanjay (2014) Geopolymerisation of Mechanically Activated Lignite and Brown Coal Fly Ash. Acta Physica Polonica A, 126 (IF-0.604). pp. 994-998.

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Geopolymers have been synthesized from mechanically activated lignite and brown coal y ash. Mechanical activation of y ash has been carried out using laboratory ball mill. To determine the structural changes in both, the y ash and the resulted geopolymer, Fourier transform infrared spectroscopy measurements were performed. Isothermal conduction calorimetry method was applied to study the geopolymerisation reactions in mechanically non-activated (raw) and activated y ash samples. The isothermal conduction calorimetry results showed similar peak intensity for mechanically activated (530 min) y ash samples. However, the intensity of peak for 120 min milled brown coal y ash was the highest. The compressive strength of the specimen was found to be dependent on the grinding residence time as well as composition/type of y ash.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Mechanically Activated Lignite geopolymerisation
Divisions:Metal Extraction and Forming
ID Code:7141
Deposited By:Sahu A K
Deposited On:28 Nov 2014 18:04
Last Modified:04 May 2016 14:29
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