METHOD OF PREPARING MIXTURE FOR SULPHUR CONCRETE Russian patent published in 2010 - IPC C04B28/36 C04B111/20 

FIELD: chemistry.

SUBSTANCE: invention relates to production of construction materials, particularly to production of concrete articles and road surfaces. The method of preparing a mixture for sulphur concrete involves modifying sulphur by adding bitumen in amount of 1-8 wt % at temperature of 125-155°C and exposure to low-frequency ultrasound for 1-10 minutes; mixing the modified sulphur with a mixture of mineral filler heated to 125-155°C - sand, crushed stone and flue ash with molten sulphur in weight ratio of flue ash with sulphur (0.2-3.0):1 and weight ratio of modified sulphur to said mixture of (0.001-0.05):1. 5-20 wt % bitumen is also added to the said heated mixture of mineral filler and molten sulphur to obtain a mixture for sulphur concrete for road surfacing.

EFFECT: design of an efficient method of preparing a mixture for sulphur concrete for road surfacing.

2 cl, 2 ex