Abstract The factors influencing the softening point of modified asphalt were studied. First, the softening points of PA modified ESS SSR EE BBV9 bitumen were compared, and tombstone and S The influence of the type of S, BB Jing fleas and other factors on the softening point of modified asphalt.
The conventional indexes for evaluating the high-temperature stability of modified asphalt are penetration and softening point. Penetration is an indicator of the consistency of asphalt, reflecting the degree of softness and hardness of asphalt under certain conditions. It is generally believed that penetration determines the viscosity under isothermal conditions. The softening point is an isoviscous degree. The softening point indicates that the asphalt sample is heated at a certain temperature rise rate. The factors that affect the softening point of the modified asphalt when the sample produces the same shear deformation under the action of a certain shear stress It is related to the composition of the base asphalt, on the other hand, it is also related to the type, model, dosage of the modifier and the stirring method, stirring temperature, stirring in the preparation
Mixing time is related.
This study is based on the type, type, dosage of the modifier and the influence of the base asphalt on the softening point.
1 The influence of different modifiers on the softening point
2 The effect of different matrix asphalts on the softening point
3 The influence of different types of SSB modifiers on the softening point
4 The influence of the blending of SSB modifier on the softening point of asphalt
5 Conclusion
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