Additive for road surface

Details Additive for road surface Additive for road surface

E - Fixed Constructions

01

C

6/168, 6/194

E01C 11/00 (2006.01) C04B 31/20 (1980.01) C04B 31/28 (1980.01)

Patent

CA 1174008

MEI-7126 ADDITIVE FOR ROAD SURFACE ABSTRACT OF THE DISCLOSURE The additive to a bituminous road cover is to be com- prised of red mud and aluminum hydroxide gel having resulted from partial or complete neutralization of alkali included in sodium aluminum silicate and sodium aluminate; silicon- dioxide gel is also preferably included. Sodium chloride may be included as an antifreeze. The neutralization is carried out by means of hydrochloric and/or sulfuric acid, possibly blended with an acidic aluminum salt of these acids. Following blending of the components, they are dried and ground to below l-mm grain size. Adding of higher hydro- carbons reduces dust formation. -1-

389127

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