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No. Concrete is a man-made material composed broadly of cement, sand and aggregate (crushed rock).

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7y ago

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Can you pour concrete over existing rock?

Concrete need a uniform and compacted base, so as long as that rock is uniform and compacted, you should be fine.


Is concrete harmful?

Wet concrete is caustic- it will burn your skin. Concrete DUST is not good to inhale- it may contain silica. Solid, cured concrete is about as hazardous as a rock.


When lava cools down it creates a layer of ......?

rock - asphalt - concrete - ice


How much rock was Alcatraz made out of?

The prison on Alcatraz Island was made of concrete, not rock.


What is a type of concrete?

A concretion is a rock formed from sedimentary processes; therefore, it is a sedimentary rock.


Is asphalt concrete a mineral a rock or neither?

Asphalt concrete is neither a mineral nor a rock. It is a human-made material composed of aggregates (such as sand, gravel, or crushed stone) bonded together with bitumen, a sticky black substance derived from crude oil.


What kind of rock is a sidewalk?

Sidewalks are made of concrete, which is not a rock. Concrete is a man-made construction material composed of Portland cement, various crushed rocks, sand and water.


Is a clay pot a rock?

No, the clay was a rock but the pot, being artificially manufactured, is a ceramic. Similarly concrete is not a rock.


Is there a concrete supplier in wendover Nevada?

No, but there is Shelton's Rock Products in Wendover, UT. They batch ready mix concrete.


How do i make concrete using nature?

Concrete IS nature, the aggregate is crushed rock, the cement is made of natural lime and clay, mix these together with water and you get concrete.


How heavey is concrete?

The weight of concrete totally depends on the weight of the rock aggregate that is in it. In my area, the rock is hard basalt, which is a little heavier than some other rock. The weight per cubic foot is around 156 pounds.


Can you handmake rock?

Bricks and concrete are man-made rocks.