BINDING MATERIAL FOR REPAIR OF THE WET ROAD COVERING Russian patent published in 2006 - IPC C04B26/26 E01C23/06 

FIELD: building materials industry; production of the road-building materials.

SUBSTANCE: the invention is pertaining to the road-building materials applied predominantly for preparation of the cold warehoused asphalt-concrete mixtures used for roads repairs in conditions of the autumn and the early spring, when the road covers are intensely deformed, and the repair with application of the hot asphalt-concrete mixtures is ineffective. The technical result of the invention is expansion of the list of the surface-active substance (SAS) used for preparation of the cold asphalt-concrete mixtures applied for repairs of the roads with the wet cover, simplification of the process of preparation of the binding material, the increase of its adhesion to the mineral materials of the carbonate rocks and reduction of its toxicity. The binding material applied for repairs of the roads with the wet cover containing cutback bitumen and SAS contains as anionic SAS - " carboxySAS" containing (in mass %): carboxymethylated alkylphenols - 70 - 80, oxyethylized alkylphenols - 9-18, sodium chloride - no more than 7.5, water - no more than 5.5, at the following ratio of the components in the binding material,(in mass %):" carboxySAS"- 1.0-1.5, cutback bitumen - the rest.

EFFECT: the invention ensures expansion of the list of the surface-active substance (SAS) used for preparation of the cold asphalt-concrete mixtures for repairs of the roads, simplified preparation process of the binding material, improved its adhesion and reduced toxicity.

1 cl, 3 tbl