Research on the Microstructure and Property of an Anion Rubber Modified Asphalt

Abstract EN

The anion rubber modified asphalt (ARMA) mixture was first successfully developed with a unique process.

In the development process, rubber and asphalt were mixed in the same proportion.

Furthermore, the microstructure and modification mechanism of the material were characterized by SEM, FT-IR, TG, and XRD tests.

The mechanical property of the mixture was also tested in accordance with the relevant standards.

In the end, the material’s capacity of releasing anion was measured by DLY-6A232 atmospheric ion gauge.

The results indicated that the addition of anion additive into the rubber modified asphalt (RMA) was a mere physical mixture, and the anion additives and rubber particles uniformly dispersed in the ARMA.

The addition of anion additive could improve the thermal stability of the RMA.

Compared with the traditional asphalt pavement material, the ARMA material shows excellent mechanical properties as well as the ability of releasing anion.

Moreover, the material has enormous economic and social benefits by taking full advantage of a large amount of waste tires, thus improving the road surrounding environment.