RAW MATERIAL MIXTURE FOR SULFUR CONCRETE AND METHOD OF ITS PREPARING Russian patent published in 2017 - IPC C04B28/36 C04B12/00 C04B40/00 C04B111/20 

FIELD: construction.

SUBSTANCE: method of preparing the mixture for sulfuric concrete involves mixing modified sulfur with a mineral filler heated to 150-155°C; the mineral filler includes pit sand with the grain size up to 5 mm and quarry crushed stone with the grain size from 5 to 40 mm; the hot mixture is discharged into moulds, cooled; at the temperature of about 40°C, the samples are removed from the mould, cooled to room temperature, at the following ratio of the stirred modified sulfur, pit sand and quarry crushed stone, weight parts: 1:(2.3÷4.2):(2.5÷4.5), respectively. The raw material mixture for the sulfur concrete includes crushed stone and sand. For preparation of the said mixture, crushed stone with the grain size of 5 to 40 mm, pit sand with grain size up to 5 mm, and modified sulfur are used at the following ratio, weight parts: pit sand 2.3-4.2, quarry crushed stone 2.5-4.5, modified sulfur 1, the raw material mixture for the sulfur concrete being obtained by the above method.

EFFECT: increasing the composition strength, corrosion resistance to aggressive media and to dynamic loads, reducing the water absorption, increasing the frost resistance.

2 cl, 2 tbl