Highly Efficient New Generation Concretes in the Construction of High-Rise Buildings in the Republic of Bashkortostan

The results of experimental studies on the production of high-strength heavy concretes (compression strength class B60 and higher) using raw materials of the Republic of Bashkortostan, as well as practical experience in the use of increased strength concretes (compression strength class B45–B55) and high-strength concretes are presented. The prospect of using such concretes is associated with the fact that if the current maximum height of civil buildings in Ufa is 99.9 m, then in the coming years it is planned to build several high-rise buildings (42–50 floors, height of more than 100 m) with a bearing reinforced concrete monolithic frame. The results of tests of samples of heavy concrete of the B60 compressive strength class show the possibility of its production from both gabbrodiorite (from igneous rocks) and limestone (from sedimentary rocks) rubble, while the strength of concrete samples made using gabbrodiorite rubble is on average 10 MPa higher than the strength of concrete of a similar composition on limestone rubble. The destruction of samples of high-strength heavy concrete on limestone rubble occurs mainly on the crushed stone grains themselves, the destruction of concrete samples on gabbrodiarite rubble occurs on the cement stone or along the cement stone – aggregate border.

D.A. SINITSIN, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.S. SALOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
I.G. TEREKHOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
A.A. TIMOFEEV

Ufa State Petroleum Technological University (195, Mendeleeva Street, Ufa, 450062, Russian Federation)

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