Method of preparing an emulsion-or-asphalt-concrete for use as a

Details Method of preparing an emulsion-or-asphalt-concrete for use as a Method of preparing an emulsion-or-asphalt-concrete for use as a

1996-02-14

1996-12-10

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

106280, C08L 9500

Patent

active

055826393

ABSTRACT:
In the production of emulsion concrete to be laid out as a road material it is customary that the applied stone fractions are mixed together with a binder, which is a bitumen emulsion based on a relatively low viscid bitumen, as the material would otherwise be very difficult to shape by the laying operation. According to the invention, the coarse stone fraction is pretreated with a rapid breaking emulsion based on high viscid bitumen, and only thereafter the fine stone fraction with low viscid binder is added. Thereby it is possible to maintain a good shapeability of the material and yet obtain a significantly improved bonding of or in the laid out material. A method for the production of asphalt concrete is also disclosed.

REFERENCES:
patent: 4579458 (1986-04-01), Ohlson
patent: 4832497 (1989-05-01), Wentzel
patent: 4978393 (1990-12-01), Maheas

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