How Aggregate Is Made - Albany Quarry

How Aggregate Is Made

When Albany Quarry first started we worked with geologists to locate the sources of aggregate in the earth called reserves. Geologists are scientists who specialize in the study of earth sciences, rocks and minerals. Usually, companies will take test samples from the rock core with a large drill. Geologists help analyze the stone's quality and structure.   Second, a quarry must receive appropriate zoning and permits.

The Quarry

Drilling Rig

Throughout the operation of the quarry, mining companies must follow laws governing safety and the environment. Next, dozers remove the top layer of grass, dirt and rock called overburden. Near the rocks outer edge, long holes are drilled downward and loaded with explosive. The rock is blasted to loosen and break the rock into pieces. Workers follow special safety precautions, rules and regulations when blasting occurs in a quarry.

Back Dumps

A haul truck, called a Back Bump, transports rock to the crushing plant.  Rocks can be crushed into many different sizes of aggregate with a machine called a jaw crusher.



The machine we use is called a Impactor by crushing large rocks into small rocks. It is usually stationed in a permanent place at the quarry. Another kind of machine, called a portable crusher, can be moved to where the rocks are. It takes large rocks and makes smaller rocks of different sizes, too.  Next, crushed stone passes through vibrating screens. Screening sorts and separates the rock into the different sizes which our company produces.

Screener / Crusher

Crusher / Screen

Some stone will be washed with water to clean it so it can be used in cement and other types of building products. Washing removes fine grains of sand, clay and dirt from the rock.  

After crushing, screening and washing, the crushed stone is conveyed or hauled to stock piles.

Loaders move the rock and place it into our trucks when the rock is sold.  Then we transport it to the customers project location.  At Albany Quarry we try to keep our loads to 22 tons and try not to exceed 24 tons.  Staying complaint with local and state laws keeps us in business and most importantly, safe.   If you have questions about our operation, feel free to contact us any time.

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