Cement/asphalt mixtures and processes for preparation of the sam

Details Cement/asphalt mixtures and processes for preparation of the sam Cement/asphalt mixtures and processes for preparation of the sam

1992-06-30

1993-06-29

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

1062811, 106283, 427136, C08L 9500

Patent

active

052230317

ABSTRACT:
The present invention provides: a cement/asphalt mixture comprising an aggregate, an asphalt emulsion, cement, a hydraulic inorganic material and water, characterized in that the surfaces of aggregate fragments are covered with the asphalt particles prepared by the coalescence of asphalt emulsion and that the hydraulic inorganic material and water are present in the interstices between the aggregate fragments; a process for preparing a cement/asphalt mixture, the process being characterized by the steps of adding 2 to 12 parts (in terms of solids content) of a cationic or anionic asphalt emulsion to 100 parts of an aggregate; mixing them; and mixing the resulting mixture with 1 to 20 parts of a hydraulic inorganic material; and a process for preparing a cement/asphalt mixture, the process being characterized by the steps of adding 2 to 12 parts (in terms of solids content) of a cationic or anionic asphalt emulsion to a mixture of 100 parts of an aggregate and 0.1 to 6 parts of an alkaline compound of a bivalent metal; mixing them; and mixing the resulting mixture with 1 to 20 parts of a hydraulic inorganic material.

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