Phase Transformations Happening at Roasting of Screenings from the Processing Waste Heaps of Eastern Donbass

Number of journal: 4-2019
Autors:

Yavruyan K.S.
Kotlyar V.D.
Gaishun E.S.
Okhotnaya A.S.

DOI: https://doi.org/10.31659/0585-430X-2019-769-4-3-7
УДК: 666.3.015:691.42

 

AbstractAbout AuthorsReferences
The results of studies on the phase transformations occurring during the firing of screenings of processing of heaps of Eastern Donbass, which are promising raw materials for the production of various types of building ceramics – ordinary, facing and clinker bricks, high-performance ceramic stones, ceramic tiles and siding are presented. It is established that the screenings are the raw material of low-temperature sintering. Depending on the degree of grinding, the raw material may belong to the group of mid-caking or high-caking raw materials. The screenings have a rather narrow sintering interval – no more than 50oC, which we believe can be expanded by increasing the content of fine fractions during the preparation of screenings. The main mineral phases at the burning temperature of 1000–1100oC are quartz, feldspars, ferruginous silicates and aluminosilicates (fayalite, hypersten, etc.), hematite. The peculiarities of phase and mineralogical transformations allow one to recommend burning products on the basis of screenings at temperatures of 1000°C and higher.
K.S. YAVRUYAN, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
V.D. KOTLYAR , Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
E.S. GAISHUN, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.S. OKHOTNAYA, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Don state University of civil engineering (1, Gagarin Square, Rostov-on-Don, 344000, Russian Federation)

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For citation: Yavruyan K.S., Kotlyar V.D., Gaishun E.S., Okhotnaya A.S. Phase transformations happening at roasting of screenings from the processing waste heaps of Eastern Donbass. Stroitel’nye Materialy [Construction Materials]. 2019. No. 4, pp. 3–7. DOI: https://doi.org/10.31659/0585-430X-2019-769-4-3-7 (In Russian).


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