METHOD TO PREPARE CONCRETE MIXTURE TO MANUFACTURE BALLAST PIPE AND DEVICE FOR PREVIOUS PREPARATION OF CONCRETE MIXTURE TEMPERING WATER

摘要

FIELD: construction.;SUBSTANCE: method to prepare a concrete mixture for manufacturing of a ballast pipe includes mixing of a sulfate-resistant portland cement, heavy spar ore, a plasticising additive on the basis of polycarboxylate ether and water at the following ratio of the components, in wt %: sulfate resistant portland cement 12 -17, water 4-10, plasticising additive on the basis of polycarboxylate ether 0.1- 0.25, heavy spar ore - balance, at the following content of heavy spar ore fractions in wt %: coarse 3-25 mm 7 - 18, fine 0.16 mm - 3 mm 70 - 85, very fine 0.01-0.16 mm 7 - 16, and tempering water of the concrete mixture is previously processed, sending through the magnetic field, where intensity is maintained with the value of 120000 -140000 A/m, with the speed of 0.5 -3.0 m/s, at the same time the water treatment time makes at least 2 hours. The device for preliminary treatment of the concrete mixture tempering water for manufacturing of a ballast pipe comprises a reservoir for water storage, with inlet and outlet nozzles, and a unit of tempering water treatment, the outlet nozzle of the reservoir is connected with the inlet of the tempering water treatment unit arranged in the form of a hollow extended element, inside of which there is permanent magnet with formation of a gap with the inner wall of the hollow extended element, the value of which makes 3 -5 mm, at the same time the permanent magnet has the intensity of the magnetic field of 120000 -140000 A/m, the outlet of the tempering water treatment unit is connected to the inlet nozzle of the reservoir, the outlet of the tempering water treatment unit is connected with the inlet nozzle of the reservoir, the reservoir has an opening for water draining. The invention is developed in subclaims of the invention formula.;EFFECT: higher density of a concrete mixture and production of a concrete with increased strength.;6 cl, 2 tbl, 2 dwg