A two-inch slab is fundamentally unsound because it's not thick enough. So...go with at least a three inch slab. For a 16-foot x 14-foot x 3-inch slab: The slab is 224 square feet. Divide by four and you get 56 cubic feet. Add 10 percent (because the bottom isn't flat) and you come up with 61.6 cubic feet. There are 0.6 cubic feet in an 80-pound bag, so you need 103 bags. Do not do it this way. It will cost you more money and the pour will be weak and look terrible. You need 2-1/2 yards of concrete from a concrete company. If you make the slab 4 inches thick, you will need 3 yards and that's better because concrete companies don't like to deal in half-yard increments.
Use the metric system, it's more practical. Just do width * height * lenght of the area. This will get you something in CM^3. Then just do / 100^3 and you have M^3, the bags of concrete you buy will say how much M^3 you can pour with it.
10 bags will give you 6'2/3", seven bags will give you 11 bags will give you 7'1/3". Each bag is 2/3 cu feet.
10 80# bags will fill about 6 cubic feet, so 375 bags should fill 225 cubic feet (30 x 30 x 0.25).ANS 2 -At least in my area, it would be much cheaper ordering this to be delivered by a concrete truck.An 80 lb. bag of concrete is 2/3 of a cubic ft. of concrete. 3 bags is 2 cu. ft. So for 225 cu.ft. youll need 338 bags of concrete.
At least 3 cubic yards for a 4-inch slab. You'll need 4.75 cubic yards for a 6-inch slab.
How deep? Are you talking about dry mix weight or finished weight? Concrete weighs 150 pounds per cubic foot. So if you have a 6" slab, that's 150# for 2 square feet. For a 4" slab, the same amount will cover 3 square feet. For a 3" slab, 4 square feet. Concrete mix is commonly sold in 80 pound bags. The finished weight is the mix plus the water that gets chemically bound to it. There's a guide on the bag telling how many bags you need for a given area and thickness.
1:2:3
The pipe usually goes under the slab.
Depending on the use of the concrete, between 5-6 bags.
3 cu.yds
A two-inch slab is fundamentally unsound because it's not thick enough. So...go with at least a three inch slab. For a 16-foot x 14-foot x 3-inch slab: The slab is 224 square feet. Divide by four and you get 56 cubic feet. Add 10 percent (because the bottom isn't flat) and you come up with 61.6 cubic feet. There are 0.6 cubic feet in an 80-pound bag, so you need 103 bags. Do not do it this way. It will cost you more money and the pour will be weak and look terrible. You need 2-1/2 yards of concrete from a concrete company. If you make the slab 4 inches thick, you will need 3 yards and that's better because concrete companies don't like to deal in half-yard increments.
Use the metric system, it's more practical. Just do width * height * lenght of the area. This will get you something in CM^3. Then just do / 100^3 and you have M^3, the bags of concrete you buy will say how much M^3 you can pour with it.
Its 2400 kg/m^3 normally.
10 bags will give you 6'2/3", seven bags will give you 11 bags will give you 7'1/3". Each bag is 2/3 cu feet.
8
Most bags will make a 1/3 of a cubic foot of concrete.
2000 pounds