COMPOSITION FOR SULPHUR CONCRETES Russian patent published in 2015 - IPC C04B28/36 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of obtaining sulphur concretes for application in manufacturing building constructions and production of construction products, subjected to acid and salt aggression. Composition for sulphur concretes, containing sulphur binding agent and inert filler, is characterised by the fact that sulphur binding agent is obtained by mixing at temperature 135°C in vortex mixing apparatus for 45-60 sec sulphur with addition of black oil in weight ratio 6:1 and spraying ammonia and fumaric acid in amount 200 mg per 1 m³ of sulphur respectively, until homogeneous mixture is obtained, with inert filling agent containing the following fraction composition in wt %: screenings of rubble crushing - fraction 20-10 mm - 10, fraction 10-5 mm - 10, fraction 5-2.5 mm - 10; washed river sand - fraction 2.5-1.25 mm - 10, fraction 1.25-0.63 mm - 15, fraction 0.63-0.315 mm - 15, fraction 0.315-0.071 mm - 15; grinding of washed river sand - fraction 0.071 mm and smaller - 15. To obtain composition sulphur binding agent and inert filler can be used in weight ratio 23:77.

EFFECT: increased strength and fire resistance of concrete.

2 cl, 2 tbl