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properties of asphalt
December 2, 2022
Temperature sensitivity,Aging,Wax content,properties of asphalt
1. Temperature sensitivity
Since each component in asphalt is not a stable compound, asphalt is a material that is easy to age. Under the influence of external conditions, as time goes by, the components in asphalt will transfer, which will eventually deteriorate the road performance of asphalt. Therefore, anti-aging has always been an important part of our research on asphalt performance.
3. Wax content
Since most of my country's crude oil is paraffin-based crude oil, the remarkable feature of domestic asphalt is its high wax content. Wax is an extremely unstable substance with high sensitivity to temperature. It not only affects the temperature stability of asphalt, but also affects the anti-skid performance of asphalt. Asphalt with a high wax content cannot be used for road construction. my country is currently working on the research of asphalt dewaxing technology.
Asphalt is a very sensitive material to temperature. The same bitumen can show different forms at different temperatures, such as liquid, solid, semi-solid, etc. This performance not only determines that asphalt has the characteristics of high-temperature flow and low-temperature brittleness, but also requires that when testing its technical performance, it must be carried out at a specified temperature, otherwise the testing results will lose comparability.
Since each component in asphalt is not a stable compound, asphalt is a material that is easy to age. Under the influence of external conditions, as time goes by, the components in asphalt will transfer, which will eventually deteriorate the road performance of asphalt. Therefore, anti-aging has always been an important part of our research on asphalt performance.
3. Wax content
Since most of my country's crude oil is paraffin-based crude oil, the remarkable feature of domestic asphalt is its high wax content. Wax is an extremely unstable substance with high sensitivity to temperature. It not only affects the temperature stability of asphalt, but also affects the anti-skid performance of asphalt. Asphalt with a high wax content cannot be used for road construction. my country is currently working on the research of asphalt dewaxing technology.
