Abstract: An additive that modifies rheological properties of asphalt under warm conditions, and makes it possible to mix and compact asphalt mixtures with a temperature reduction of up to 35° C., constituted by wax, an adhesion-improving additive and a fluxing agent, which reduces asphalt oxidation, causing it to be less-aged and more resistant to fatigue, reduces the interfacial tension between the aggregate and the asphalt, increases adhesion between them, making the mixture resistant to the damages caused by humidity, increases resistance to permanent deformation, causes gas emissions to be reduced and leads to savings in fuel consumption. The additive of the invention has the following effects: 1) at temperatures between 100° C. and 160° C., it reduces the asphalt viscosity, 2) at temperatures between 58° C. and 82° C., it increases the asphalt viscosity, and 3) at temperatures lower than 25° C., it reduces the asphalt viscosity, as compared to asphalt without the additive.

Abstract: It is an additive that modifies the Theological properties of asphalt under warm conditions, and makes it possible to mix and compact asphalt mixtures with a reduction in temperature of up to 35° C., which is constituted by wax, an adhesion-improving additive and a fluxing agent, which reduces asphalt oxidation, causing it to be less-aged and more resistant to fatigue, reduces the interfacial tension between the aggregate and the asphalt, increases adhesion between them, making the mixture resistant to the damages caused by humidity, increases resistance to permanent deformation, causes gas emissions to be reduced and leads to savings in fuel consumption. The additive according to the invention has the following effects:—At high temperatures (between 100° C. and 160° C.), IT REDUCES the asphalt viscosity, as compared to asphalt without the additive.—At temperatures between 58° C. and 82° C., IT INCREASES the asphalt viscosity, as compared to asphalt without the additive.—At temperatures lower than 25° C.