Bituminous mixtures for roads with very high performances, metho

Details Bituminous mixtures for roads with very high performances, metho Bituminous mixtures for roads with very high performances, metho

1981-06-03

1983-02-01

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

524 59, C08L 9500

Patent

active

043714013

ABSTRACT:
The bituminous mixtures for roads consist in a granular composition basically containing hard rock aggregate and a binder composed of very hard bitumens and possible additives and used in an amount corresponding to a corrected richness modulus .kappa. within the range of 3.8 to 4.5 in accordance with the relation: ##EQU1## .SIGMA.=conventional specific surface-area of the aggregate=0.25 G+2.3 S+12s+135f, in m.sup.2 /kg with the proportions by weight

REFERENCES:
patent: 4274882 (1981-06-01), McAllister, Jr.
patent: 4287263 (1981-09-01), Woodring et al.

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