Low viscosity asphalt-rubber paving material

Details Low viscosity asphalt-rubber paving material Low viscosity asphalt-rubber paving material

1976-12-27

1978-04-18

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

404 72, C08L 9500

Patent

active

040850781

ABSTRACT:
The paving material comprises the reaction product formed by heating a mixture of paving grade asphalt and a non-oil resistent rubber to a temperature of about 350.degree. F to about 500.degree. F. The improvement provides for a relatively low viscosity paving material by admixing a diluent with the asphalt-rubber mixture prior to the reaction whereby the viscosity of the paving material is unexpectedly reduced to about one-half as compared to the viscosity of the reaction product having the diluent admixed after the formation thereof. Variations in the viscosity of the paving material are unexpectedly minimized by precuring the asphalt-rubber-diluent mixture prior to reaction thereof.

REFERENCES:
patent: 3844668 (1974-10-01), Winters et al.
patent: 3919148 (1975-11-01), Winters et al.

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