Normal Weight Concrete at 150 pcf has an R value of 1.22 per inch thickness
30 kilos
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(22*6)/2 =66 qubic ft
We just recieved a bill for sidewalk repair. 5/16/2012 all calculations are for 4 inch thick concrete $7.87/SQFT new $9.35/SQFT remove and replace $4.48/LF Concrete Saw Cutting
The weight that concrete can hold before breaking depends on factors such as its composition, thickness, and the conditions it is exposed to. On average, concrete can typically withstand compressive strengths ranging from 3,000 to 7,000 pounds per square inch (psi) before failing. However, it is important to consult with a structural engineer to determine the specific load-bearing capacity for your particular application.
A half inch thick steel plate, A half inch thick plywood, Brick, Concrete Block
Normal Weight Concrete at 150 pcf has an R value of 1.22 per inch thickness
On average, concrete weighs about 12.5 pounds per square foot per inch thick. This can vary based on the type and density of the concrete mix.
80
30 kilos
15 pounds
532.4074 yards of concrete, round up to 533 yards.
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.
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A 6-inch concrete slab can typically support around 150 pounds per square foot.
depends what its made of