Patent ID: 7758686

Claim:
A material for the production of building layers and/or coatings comprising a mixture of an aggregate and a binder, wherein the binder comprises, based on the total weight of (a) and (b): (a) 60 to 80% in weight of at least one purely natural or modified natural resin, of vegetable origin, having a softening point measured according to the standard EN 1427 of 100 to 200° C.; (b) 20 to 40% in weight of at least one oil of vegetable origin having a viscosity at 25° C. of 50 mPa·s to 1000 Pa·s; (c) said binder having a penetrability at 25° C., measured according to the standard NF EN 1426, of 20 to 300 1/10 mm and a softening point of 30 to 75° C., measured according to the standard NF EN 1427; and said binder being exempt of any natural or synthetic elastomer and of any thermoplastic polymer, said aggregates being selected from the group consisting of fines, sand, gravel and combinations thereof.