Effects of porosity and related interstitial phase morphology difference on the grindability of clinkers

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Title: Effects of porosity and related interstitial phase morphology difference on the grindability of clinkers

Author(s): Kamile Tosun, Bülent Bülent, Akın Altun

Publication: RILEM

Volume: 43

Issue: 1

Appears on pages(s): 179-193

Keywords: Clinker, Grinding, Porosity, Image analysis, Interstitial phases

Date: 12/1/2009

Abstract:
The effects of regional clinker porosity and interstitial phase morphology differences on grindability of clinkers have been investigated within the scope of this study. Porosity and phase characteristics of two clinkers from different furnaces which are using the same raw materials were determined by the application of image processing techniques on SEM images of polished surfaces. Comparison of interstitial phase compositions of two clinkers showed that, clinkers with similar phase compositions may have different grindability due to the porosity and phase morphology differences. Porous clinkers usually exhibit a dendritic interstitial phase morphology with an improved grindability. Increasing porosity also leads to greater incidence of the dendritic morphology in porous regions and lower incidence of alkali in the aluminate in dendritic regions.


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