Coating processes – Coating pavement or the earth – Asphalt – bitumen – oil – or tar containing coating
Patent
1987-06-02
1988-10-11
Childs, Sadie L.
Coating processes
Coating pavement or the earth
Asphalt, bitumen, oil, or tar containing coating
106273R, 208 23, 404 75, 4273722, B05D 510, E01C 512
Patent
active
047770643
ABSTRACT:
A first method for reducing the penetration of paving grade asphalts. Paving grade asphalt is blended with a solvent extracted resin-asphaltene residuum in the proportions of approximately 75% to 25% by weight, respectively, to yield penetration of 25 or less of the resulting mixture.
A second method of applying the reduced penetration asphaltic product mixture, obtained by the first method, to a granular surface. The asphaltic mixture is first diluted with an evaporative diluent and then spread over a granular surface so as to penetrate into and stabilize the underlying granular material.
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