Why is it important to use the correct salt-sand mix on highways during storms?
Help please this is for my Chemisty Project
Study this. It should help.
http://www.usroads.com/journals/p/rmj/9712/rm971202.htm
thank you
Using the correct salt-sand mix on highways during storms is important for several reasons. First and foremost, it helps to improve traction and reduce accidents on the road. When ice or snow accumulates on the pavement, it becomes slippery, making it difficult for vehicles to maintain control. The salt in the mix helps to melt the ice and snow, creating a slush that provides better traction for vehicles, reducing the risk of accidents.
Now, let's discuss how to determine the correct salt-sand mix for the highway. The ideal ratio will depend on the weather conditions, temperature, and the type of road surface. Typically, a common ratio is about 3:1 (three parts sand to one part salt) during moderate snowfall. However, if the snowfall is heavy or the temperature is extremely low, a higher salt concentration may be necessary.
To determine the appropriate mix, research the weather forecast and assess the condition of the road before and during the storm. Temperature plays a crucial role, as it affects the effectiveness of salt in melting ice. In extremely cold temperatures, a higher salt concentration is needed to combat freezing. By monitoring the road conditions and adjusting the salt-sand mix accordingly, the highway maintenance crew can maintain safer driving conditions on the roads.
Additionally, it's crucial to use the correct type of salt. Commonly, road crews use rock salt (sodium chloride) because it is affordable and effective in most situations. However, for very low temperatures, different types of salts such as calcium chloride or magnesium chloride may be more effective.
In summary, using the correct salt-sand mix on highways during storms is essential for improving traction and reducing accidents. To determine the appropriate mix, consider factors such as weather conditions, temperature, and road surface conditions. Adjusting the salt concentration and type based on these factors will help keep the roads safer during winter storms.