What is the Difference between Crushed Stone and Gravel?
Gravel is made from natural processes such as erosion and weathering. Crushed stone, however, is made by mining rock and crushing it until it reaches a suitable size. Gravel typically has a more rounded shape than crushed stone, hence the term "angular stone," which is widely used instead of "crushed stone."
Does Mining Crushed Stone Harm the Environment?
Crushed stone is considerably easier to mine than most materials. The rock used to make angular stone is abundant in many areas. Since the rock is located near the earth's surface, removing it does not have as many negative impacts as, for instance, mining coal. Crushed rock, however, is one of the most commonly used construction materials in the world. The high demand could potentially lead to some environmental impacts. Currently, there are few problems connected with the mining process.
Where is Crushed Stone Made?
Crushed stone is made all over the world. The economic reality is that transportation adds significant cost to angular rock. Producers usually sell the material locally to help keep costs low. The industry also faces considerable competition from companies that sell other construction aggregate, such as sand, gravel, and shale. This encourages crushed stone sellers to concentrate on local distribution channels.
How is Crushed Stone Used?
Crushed stone is used in a variety of construction projects, including road and railroad construction. It is also used as a binder in concrete.