National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Mineralogical and silicate analysis of steel work waste samples after expansibility and disintegration tests
Martinec, Petr ; Ščučka, Jiří ; Kubina, Lukáš ; Vavro, Leona
The report includes results of mineralogical and petrographic analyses of material samples of steel work waste after expansibility and disintegration tests.
Secondary minerals origined on burning coal waste piles in selected coal basins in the Czech Republic
Martinec, Petr ; Klika, Z.
In this paper the existence of coal waste pile have been divided into various stages. Four of these stages (A, B, C and D) belong to stage of coal waste pile heating. Whereas stage A run at the ambient low temperature the stage D run at very high temperature (above 900°C). The fifth stage E follows cooling period and sixth stage F interaction of coal waste pile with injected material that is added to burning coal waste pile in order to decrease its temperature. Each stage is characterized by various condition at which new secondary minerals are formed. Some of them are typical just for related stages of coal waste pile existence.

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