29Si AND  27Al CPMAS NMR QUALITATIVE AND QUANTITATIVE ANALYSIS OF KAOLINITE AND DICKITE IN KOS ISLAND KAOLINS, GREECE

Papoulis, Dimitrios

doi:10.12681/bgsg.16776

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Their mineralogical composition includes quartz, Na-plagioclase, alkalifeldspar, and amorphous volcanic glass, scharacterised by perlitic texture. The kaolinisation process in volcanic rocks on the Kefalos peninsula has been studied [21][22][23][24][25] by means of geochemical analysis, mineralogical study and spectroscopical methods.…”

Section: Introductionmentioning

confidence: 99%

Kaoline Mapping Using ASTER Satellite Imagery: The Case Study of Kefalos Peninsula, Kos Island

Kokkaliari

Kanellopoulos

Illiopoulos

2021

International Conference on Raw Materials and Circular Economy

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The present work aims to map kaolin occurrences on the Kefalos peninsula, SW Kos Island, Greece, through the elaboration of ASTER satellite imagery. The island of Kos is located on the eastern edge of the South Aegean Active Volcanic Arc (SAAVA) and is characterised by its complex geologic structure. During Plio-Pleistocene, the voluminous eruption of the Kos Plateau Tuff was recorded on Kefalos; the largest quaternary eruption in the Mediterranean. Kaolin is the product of hydrothermal alteration of the Pliocene volcanic rocks with rhyolitic composition. Our study emphasises the usefulness of satellite imagery combined with the Mixture Tuned Matched Filtering (MTMF) technique to detect occurrences of industrial minerals, kaolin-group minerals in this case, either in terms of raw mineral exploitation or by mapping hydrothermal alteration.

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Section: Introductionmentioning

confidence: 99%

Kaoline Mapping Using ASTER Satellite Imagery: The Case Study of Kefalos Peninsula, Kos Island

Kokkaliari

Kanellopoulos

Illiopoulos

2021

International Conference on Raw Materials and Circular Economy

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Optimization of the Pozzolanic Activity of Coal Gangue Waste for Eco-Efficient Cementitious Materials

Liu¹,

Wang²,

Li³

et al. 2022

KEM

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Massive coal gangue waste delivers environmental disasters in China. Finding an effective, efficient, practical and value-added approach for large-scale disposal of coal gangue waste is very urgent. In this study, thermal treatment approach was conducted on coal gangue waster with the goal to improve its pozzolanic activity so that considerable replacement of Portland cement can be realized. XRD analysis, IR analysis as well as the evaluation on mechanical properties of mortar specimen were carried out to optimize thermal treatment program. The results indicate that coal gangue waste can be efficiently treated at 850°C in less than 30min to obtain pozzolanic activity of 108% at 7 days and 124% at 28 days. And an industrial product also shows similar improvement in pozzolanic activity to the lab results, and indicates the potential for producing eco-efficient cementitious materials.

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29Si AND 27Al CPMAS NMR QUALITATIVE AND QUANTITATIVE ANALYSIS OF KAOLINITE AND DICKITE IN KOS ISLAND KAOLINS, GREECE

Abstract: The application of 27

Cited by 2 publications

References 10 publications

Kaoline Mapping Using ASTER Satellite Imagery: The Case Study of Kefalos Peninsula, Kos Island

Kaoline Mapping Using ASTER Satellite Imagery: The Case Study of Kefalos Peninsula, Kos Island

Optimization of the Pozzolanic Activity of Coal Gangue Waste for Eco-Efficient Cementitious Materials

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