Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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MODIFIED SCREENINGS CRUSHING OF CARBONATE ROCKS BASED ARTIFICIAL STONE

Kononova O.V. 1 Cherepov V.D. 1
1 Volga State University of Technology
The studies aimed at the integrated use of different composition screenings crushing of carbonate rocks in the building stone manufacture. Found that the screening crushing of carbonate rocks based artificial stone water resistance can be improved by introducing modifying additives. The соmbined aggregate composition and technology effect on the artificial stone properties formation investigated. Сhemical мodification of artificial stone by screenings crushing of carbonate rocks containing 10–20 % cement ratio increases water resistance from 0,63–0,66 to 0,84–0,97 %. The artificial stone water resistance growth and composition correlation studied. Water resistance pressed modified screenings crushing of carbonate rocks based artificial stone with 25 MPa compressive strength and F50 frost resistance manufacturing technology found. Pilot production trials have confirmed the effectiveness of the proposed technology. The research results implementation solves the problem of screenings crushing of carbonate rocks disposal.