The influence mechanism of natural asphalt on asphalt modified asphalt performance is studied, and the application level of natural asphalt is further explored. By mixing virgin and modified bitumen with four kinds of natural bitumen at home and abroad (including Sichuan, Xinjiang, North American and South American bitumen), it was found that the content of bitumen and rubber increased, the content of rubber decreased, and the total amount of bitumen and rubber was doped with natural bitumen. Added; modified asphalt Differential thermal scanning (DSC) was used to analyze the aggregation state of asphalt, and the dependence of asphalt thermal changes on the performance of asphalt when changing conditions. Gel permeation chromatography (GPC) showed that the molecular weight and molecular weight average of the modified asphalt are increased to varying degrees.

It can be seen that after the modification of natural asphalt, the temperature sensitivity of asphalt has been greatly improved, the temperature performance has been significantly improved, and the low temperature performance has also been improved to a certain extent.If you have any other questions, please contact us for modified asphalt details or contact us directly.

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