METHOD OF PRODUCING HYDROPHOBIC LOOSE MATERIAL Russian patent published in 2012 - IPC C04B20/02 C04B7/02 

FIELD: process engineering.

SUBSTANCE: invention relates to production of construction materials, particularly, hydrophobic loose materials used for flashing structural components, foundations, waterworks components. Proposed method comprises mixing mineral disperse material with hydrophobic-modifier additive based on hydrophobic component composed of peat milled to dusty state. Said hydrophobic-modifier additive is produced by adding hydrophobic component into portion of mineral disperse material in amount of 10.1 to 99.9 wt % of produced mix in terms of absolutely dry substance and heating produced mix to 175-700°C with no oxygen. Then, said additive is added to remaining portion of mineral disperse materials in amount of 10 wt % of processed mineral substance. The latter represents crushed cement clinker, milled clay or sand.

EFFECT: power saving, safe process.

3 cl, 2 dwg, 1 tbl, 11 ex