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[Chemical Knowledge]：Explore the role of asphalt, let us understand the importance of road stability

Read： 558 Time：24months ago Source：Transform the World with Simplicity

With the continuous development and progress of transportation, our demand for road stability is also getting higher and higher. I think we all walk a lot, and we must have stepped on hard stones or uneven ground. This kind of unsmooth road surface lacks the stability of the road surface, which brings great inconvenience to people's travel and causes danger. For highways and other major traffic roads, the stability of the road surface is more important.

then, how to ensure the stability of the road surface? This requires the use of asphalt as an important material. Asphalt refers to a class of petrochemical products, with permeability, flexibility and viscosity. In pavement production, often in the form of petroleum asphalt. The permeability of

asphalt is its most prominent advantage. Asphalt can penetrate inside the pavement during construction, and this permeability can make the asphalt more evenly distributed, so as to better support the load-bearing level of the pavement. The permeability of the asphalt can also promote the interconnected stones in the pavement to be more closely linked together, so that the pavement hardness can be increased, more able to withstand the weight of the vehicle. The flexibility of

asphalt can make the bending and twisting of the road surface better withstand and slow down. The word "soft" is usually considered pejorative, but in pavement production, soft refers to a resistance to deformation, rather than its soft nature. When a vehicle is driving on the road, the road will bend or twist due to the pressure of the wheels. The flexibility of asphalt greatly reduces the impact and energy generated by this deformation, thereby protecting the integrity of the road surface itself.

In addition, the viscosity of asphalt also plays an important role in maintaining the durability of the pavement. The meaning of viscosity here refers to the adhesion of asphalt. By bonding the surrounding stones to the pavement base, the asphalt increases the stability of the pavement. Because the adhesion of the stones is combined with the adhesion of the asphalt, the pavement is able to resist more damage caused by bad weather and road use.

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