Mix salt into asphalt to limit freezing on the road

Ice surface formation on asphalt roads in winter can cause unavoidable accidents. To solve this problem, scientists used chemical salts to process.

According to the American Chemical Society, a solution to limit the current frozen sugar has been found to be salt . The project researcher, Seda Kizilel and colleagues, mixed potassium formate salt with a styrene-butadiene-styrene polymer to create a mixture.

Picture 1 of Mix salt into asphalt to limit freezing on the road
In winter, the snow freezing on the road surface makes it easy to understand traffic accidents.

The mixture is then mixed with the main ingredients that make up the asphalt. Composite materials are proven to be as hard as normal asphalt but added with new active ingredients to minimize the situation of creating ice on the road surface, in other words the chemical mixture will work It is important to accelerate the melting process on the road surface faster.

According to the researchers, the anti-freezing function proved extremely feasible after two months of testing. However, for practical applications, it will still require a long time of development.

The anti-freezing ability can be effective for many years because asphalt is usually spread a thick and flat layer on the road surface. The anti-freezing mixture will only take effect after a process of asphalt corrosion under the impact of the circulation process.

Picture 2 of Mix salt into asphalt to limit freezing on the road
Anti-freezing ability can be effective for many years.

The plan to put the material into production has not been announced yet. However, the prospect of practical application of this material is very high and promises to reduce a lot of catastrophic accidents that often occur in many cold countries every winter. The research project was published in the American Chemical Society's Industrial & Engineering Chemistry Research magazine recently.