Additive system for preparing lukewarm mix asphalt for road use, that is implemented at temperatures that are 30°C to 50°C lower than the temperatures that are traditionally needed for implementing hot mix asphalt, comprising: - one or more components selected from the group of the group of adhesion dopes selected from the group of alkylamidopolyamines, alkylimidazolines, and alkylimidazopolyamines, which are the products of reaction between a polyamide and a fatty carboxylic acid; fatty chain alkylpolyamines; the products of reaction between a polyamine and the products of reaction of a fatty carboxylic acid or a vegetable oil with diethanolamine; said polyamine is preferably a polyaklylene-polyamine, for examples, dimethylaminopropylamine, N-aminoethylpiperazine, diethylenetriamine, triethylenetetraamine, or tetraethylenepentaamine; and - one or more components selected from the group of ethoxylated fatty (poly)amines and ethoxylated fatty amido(poly) amines satisfying the following formula 1 or 2: wherein: - R and R' represent a C 8 to C 24 hydrocarbon radical, preferably an alkyl, a C 8 to C 22 alkenyl, or a mixture thereof; - v and v' are integers greater than or equal to 1, preferably ranging from 1 to 6, and more preferably v and v' are equal to 3; - w is an integer greater than or equal to 0, preferably ranging from 0 to 5, more preferably ranging from 0 to 3; - w' is an integer greater than or equal to 1, preferably ranging from 1 to 5, better still ranging from 1 to 3; - x, y, and z are integers selected so that the sum (x+y+z) is greater than 3, preferably ranges from 3 to 20, and better still is equal to 15, - y' and z' are integers selected so that the sum (y'+z') is between 1 to 1000, preferably is greater than 3, preferably ranges from 3 to 20, and better still is equal to 15. - one or more components selected from the group of the group of adhesion dopes selected from the group of alkylamidopolyamines, alkylimidazolines, and alkylimidazopolyamines, which are the products of reaction between a polyamide and a fatty carboxylic acid; fatty chain alkylpolyamines; the products of reaction between a polyamine and the products of reaction of a fatty carboxylic acid or a vegetable oil with diethanolamine; said polyamine is preferably a polyaklylene-polyamine, for examples, dimethylaminopropylamine, N-aminoethylpiperazine, diethylenetriamine, triethylenetetraamine, or tetraethylenepentaamine; and - one or more components selected from the group of ethoxylated fatty (poly)amines and ethoxylated fatty amido(poly) amines satisfying the following formula 1 or 2: wherein: - R and R' represent a C 8 to C 24 hydrocarbon radical, preferably an alkyl, a C 8 to C 22 alkenyl, or a mixture thereof; - v and v' are integers greater than or equal to 1, preferably ranging from 1 to 6, and more preferably v and v' are equal to 3; - w is an integer greater than or equal to 0, preferably ranging from 0 to 5, more preferably ranging from 0 to 3; - w' is an integer greater than or equal to 1, preferably ranging from 1 to 5, better still ranging from 1 to 3; - x, y, and z are integers selected so that the sum (x+y+z) is greater than 3, preferably ranges from 3 to 20, and better still is equal to 15, - y' and z' are integers selected so that the sum (y'+z') is between 1 to 1000, preferably is greater than 3, preferably ranges from 3 to 20, and better still is equal to 15. - R and R' represent a C 8 to C 24 hydrocarbon radical, preferably an alkyl, a C 8 to C 22 alkenyl, or a mixture thereof; - v and v' are integers greater than or equal to 1, preferably ranging from 1 to 6, and more preferably v and v' are equal to 3; - w is an integer greater than or equal to 0, preferably ranging from 0 to 5, more preferably ranging from 0 to 3; - w' is an integer greater than or equal to 1, preferably ranging from 1 to 5, better still ranging from 1 to 3; - x, y, and z are integers selected so that the sum (x+y+z) is greater than 3, preferably ranges from 3 to 20, and better still is equal to 15, - y' and z' are integers selected so that the sum (y'+z') is between 1 to 1000, preferably is greater than 3, preferably ranges from 3 to 20, and better still is equal to 15.