Size: larger than 2 mm in its smallest dimension and no more than 64 mm.
Functional use: Many roadways are surfaced with gravel, especially in rural areas where there is little traffic. lobally, far more roads are surfaced with gravel than with concrete or tarmac; Russia alone has over 400,000 km (250,000 mi) of gravel-surfaced roads. Both sand and small gravel are also important for the manufacture of concrete.
The character of Gravel:
Gravel is rock that is of a specific particle size range. Specifically, it is any loose rock that is larger than 2 mm (0.079 in) in its smallest dimension (about 1/12 of an inch) and no more than 64 mm (2.5 in). The next smaller size class in geology is sand, which is >0.0625 to 2 mm (0.0025 to 0.0787 in) in size. The next larger size is cobble, which is >64 to 256 mm (2.5 to 10.1 in). Gravel can be sub-categorized into granule (>2 to 4 mm/0.079 to 0.16 in) and pebble (>4 to 64 mm/0.16 to 2.5 in). One cubic yard of gravel typically weighs about 3000 pounds (or a cubic meter is about 1,800 kilograms).
Gravel is an important commercial product, with a number of applications. Many roadways are surfaced with gravel, especially in rural areas where there is little traffic. Globally, far more roads are surfaced with gravel than with concrete or tarmac; Russia alone has over 400,000 km (250,000 mi) of gravel-surfaced roads. Both sand and small gravel are also important for the manufacture of concrete.
Gravel crushing plant:
Therefore gravel quarry and gravel mining is very important. You need to be careful when choosing gravel crusher. There are many types for gravel mining. Jaw crusher can be used as primary gravel crusher equipment. You can change its finished size according to your requirements just by adjusting the devices. Impact crusher is often used as secondary gravel crusher equipment. The spotlight of impact crusher for gravel crushing is that the finished size is of uniform since its finished power is in good, cubic shape and without tensility and cranny. The final product of the impact crusher is greatly used in highway and railway surface as well as water and electricity industry. Impact crusher is the ideal choice for gravel crushing and screening.
NFLG is professional gravel mining equipment manufacturer and exporter. We will send professional engineers for your gravel crusher installation and maintenance. If you are interested in our gravel crusher equipment, you can contact us directly by phone or email and you can also ask it through our 24 hours online services.