Patent ID: 7767015

Claim:
Paving composition consisting essentially of: i) 0.5 to 30% by weight of a bitumen emulsion consisting of: (a) 0.1 to 3% by weight of an amphoteric surfactant chosen from the compounds of formula (I) or (II) in which: R 1 is a linear or branched, saturated or unsaturated aliphatic group having 6 to 24 carbon atoms; R 2 is a linear or branched, saturated or unsaturated aliphatic group having 2 to 6 carbon atoms, at least one of these carbon atoms optionally being substituted by a hydroxy group; R 3 and R 4 are linear or branched saturated or unsaturated aliphatic groups comprising from 1 to 4 carbon atoms, wherein R 3 and R 4 may be identical or different; R 5 is a linear or branched saturated or unsaturated aliphatic groups comprising from 1 to 6 carbon atoms, at least one of these carbon atoms optionally being substituted by a hydroxy group; Y is an SO3 − or COO − group; Z is an SO3 − or COO − or OH group; b. from 30 to 95% bitumen; and c. water in sufficient quantity to make up the emulsion; ii) from 70 to 99.5% by weight of aggregates; iii) from 0 to 20% by weight of total water.