Prospects of the Use of Siliceous Opoka-Like Rocks for Production of Paving Clinker of Low-Temperature Sintering

Results of the study of possibilities to produce the paving clinker on the basis of siliceous opoka-like rocks are presented. The general characteristic of these rocks and their carbonate-clayey types is given. It is shown that the introduction of mineralizers in the amount of 1% makes it possible to produce products with water-absorption less than 2.5% at a burning temperature of 1050–1100 о C. The products obtained meet the requirements of normative documents and have a yellow or dark-yellow color. It is established that the main technological factors when producing the clinker brick are the burning temperature of products, the degree of grinding of the initial rock and the amount of mineralizing additive. Taking into account the properties of clay-carbonate flasks, the method for producing products can be both as an extrusion and compression. Technical-economic calculations show a high efficiency of investments in the production of road clinker brick on the basis of flasks.

V.D. KOTLYAR, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.A. KOZLOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
O.I. ZHIVOTKOV, (This email address is being protected from spambots. You need JavaScript enabled to view it.),
K.A. LAPUNOVA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Don State Technical University (1, Gagarina Square, Rostov-on-Don, 344000, Russian Federation).

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