Method of sprinkling water on deicing pavement

1. Hot melting method: This method uses the heat generated by hot water, geothermal energy, gas and electricity to melt ice and snow, such as spraying hot water and heating cables. However, these methods often consume a lot of energy, and when the melted snow water enters the pavement structure, it will bring impurities such as dust on the pavement surface and accumulate in the pavement structure, thus blocking the pores, leading to poor drainage and affecting the removal of snow water.

2. Spreading snow melting agent: This is a method to reduce the melting point of ice and snow by spreading chemicals on the road surface, so as to melt the ice and snow, and then remove the accumulation of ice and snow. This method is commonly used in the world to clear the ice and snow on the road. Salt and alcohol are main melting agents commonly used at home and abroad.

3. The deicing effect of alcohol deicer is greatly influenced by the ambient temperature, which has the phenomenon of anti-icing, that is, once the ambient temperature drops, the melted snow will freeze into ice again, making the road surface smoother and the traffic accident rate higher. If the ambient temperature is too low or the snowfall is too large, the snow melting agent itself is difficult to dissolve and melt quickly, and the rolling action of vehicle tires is needed, so the snow melting lasts for a long time and the effect is poor, resulting in a significant increase in comprehensive cost.

4. Salt deicer products are mostly corrosive, which is easy to corrode and destroy road structures and motor vehicles, and also pollute soil, water and atmosphere and destroy the ecological environment.

5. Manual removal method: This method can completely remove the ice and snow, but it is inefficient and costly, which affects the traffic and driving safety when the vehicle is running and cannot run for a long time. It is suitable for snow removal in sections with less snow or key and difficult points.

6. Sprinkling gravel: Sprinkling gravel with a certain particle size, such as sand, stone chips, furnace ash, cinder, sand-salt mixture, etc., can improve the friction coefficient of ice-snow pavement. Because of the existence of gravel, on the one hand, the freezing strength of the ice and snow layer is uneven, on the other hand, the movement of gravel in the ice and snow layer makes it difficult to compact the snow and achieve the purpose of anti-skid. This method is widely used in Europe because sand and gravel materials are economical and environmentally friendly.

7. Compared with the method of snow remover, the use effect of chemical snow remover is better than that of traditional anti-skid materials such as sand; Using sand and salt for anti-skid maintenance is much better than spraying sand or salt alone.

8. Mechanical removal methods can be divided into two categories: mechanical snow shoveling and mechanical snow blowing. Mechanical ice shoveling and snow shoveling are suitable for large-scale clearing operations in snowy days and before freezing. Mechanical snow blowing is suitable for snow on thin roads that have not been crushed, and usually only suitable for snow removal in small areas that are easy to manage, such as airports.