| 摘要 |
Described is an additive for modifying the rheological properties of warm asphalt, which is useful for mixing and compressing the asphalt mixtures with a temperature reduced down to 35°C, the additive including wax, which is an adherence improver and a fluctuant agent, which reduces the oxidation of the asphalt, thus being more resistant to stress; the invention also reduces the interfacial tension between the aggregate and the asphalt, increasing the adherence between the same and turning the mixture into more resistant to damages caused by humidity, increasing the resistance to permanent deformation, reducing gas emissions and saving fuel consumption. The additive according to the invention has the following effects: - At high temperatures (of from about 100°C to about 160°C) the viscosity of the asphalt is reduced, compared to the additive-free asphalt. - At temperatures of from about 58°C to about 82°C the viscosity of the asphalt is increased, compared to the additive-free asphal t. At temperatures lower than 25°C the viscosity of the asphalt is reduced, compared to the additive-free asphalt. |
