The weight capacity of the concrete driveway depends on its specific design and reinforcement. Generally, a 4.5-inch thick concrete driveway can typically support up to 100-150 pounds per square foot. Therefore, with proper installation and load distribution, it should be able to support the weight of 20 tons of stone and a 3-ton delivery truck. However, it is recommended to consult a structural engineer for a precise calculation for your specific driveway.
It depends if you're British or American
The word stone meets those specifications.
Olmec sculptors used stone tools made from hard volcanic materials like basalt to transform a 20-ton stone into a massive head. They used techniques such as abrasion, pecking, and polishing to shape and carve the stone into intricate sculptures.
A metric ton is 1000 kilograms. A stone is about 6.4 kilograms. Therefore, 1 ton is equal to about 156 stones.
Call your local quarry, prices vary.
stone
It would depend on the size of the aggregate
A cubic yard of 2B stone typically weighs around 2,700 to 3,000 pounds, depending on the specific composition and density of the stone.
143 stone is equivalent to 2,002 pounds or approximately 907 kilograms. It is a very heavy weight, typically used in the UK and Ireland to measure a person's mass.
At 14 lbs/stone, there are approximately 157.14 stone in a metric ton or 'tonne' '
1 short ton = 142.857143 stone