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4".
A 4" thick concrete slab reinforced with 6 x 6 x 10 welded wire mesh placed over a 6 ml vapor barrier on 6" of levelled and compacted gravel or sand is common for many residential applications.
I'm assuming there are no point loads anywhere in the slab interior and the slab is used for general purposes such as a residential basement, workshop, or garage floor. Any special circumstances should be engineered.
All steps in the process are important, but one often overlooked is that the base needs to be properly compacted and prepared. A good base will be very level and very well-compacted. If the base is poor, the slab may need to be thicker or engineered. Slabs will crack where the thickness changes and stress forces become concentrated while it's curing and then while it's settling. If you have posts coming down anywhere in the field of the slab, be sure to cut control joints around them and across the slab to direct the inevitable cracks during curing and settling. Control joints are best when they are saw-cut to 1/3 the depth of the slab after the slab has set, and generally spaced 10-12' apart is good. Trowelled-in control joints do not work nearly as well as saw-cut.
Also, remember to use an isolation material such as conventional felt strips at the slab edge to prevent mechanical bonding to adjacent walls and allow for slight differential movement.
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How many yards of crushed concrete do you need for a 150'x12' driveway?
Crushed concrete is sold by the ton. One dumptruck will haul between 13 and 15 tons. Your driveway should take around 30 tons if covered 4" thick.
How much does 30 square foot of concrete weigh?
It is all dependant on how thick the concrete is. You take the square footage and turn that into cubed feet (where the thickness comes in) if its 1" thick you multiply the square footage by.083, if its 2" thick you multiply by.17. To come up with this number you take the thickness say 3" and divide that by 12 (12 inches in a foot), so for 3 inches you get .25. So back to the question at hand, say your 30 square feet of concrete is 6 inches thick, your equation would look like this: 30 X .5 = 15. So 15 is your cubed footage. You then multiply this number by 150 which is the weight in pounds of 1 cubic foot of concrete. The number you come up with is 2,250. That is the amount in pounds of your 30 square feet of concrete assuming it is 6 inches thick.
What is m 30 concrete?
It is the grade of concrete which indicates the strength of concrete after 28 days curing. M #) means the strength of concrete after 28 days of curing will be 30 N/mm2 .
What area will 1 ton of crushed concrete cover?
It depends on the thickness and the density. One ton should be about 15 cubic feet when compacted, so it would cover 30 square feet 6 inches thick or 45 square feet 4 inches thick or 60 square feet 3 inches thick. It would make a driveway four inches thick, 9 feet wide and 5 feet long or a footpath 3 inches thick, three feet wide and 20 feet long.
The weight of a solid 6 inch concrete block?
30 kilos
How much concrete is needed for a slab 30 square feet by 6 inches thick?
2.15
How many yards of concrete in a 20ft by 30 ft slab 5 inches thick?
9.3 cubic yards of cement is required for this slab.
How much does a 10' x 30' x 4 slab of concrete weigh?
10-ft x 30-ft x 4-in = 100 cubic ft.That slab weighs 3.7 times as much as 1 "yard" of concrete. (rounded)
How many yards of concrete it will take to pour a concrete slab that is 30 ft x 10 ft x 4 inches thick?
3.70 yards and you will order 4 yards to have enough. (30 x 10 x 1/3) = 100 cubic feet Divided by 27 = 3.704 cubic yards
How many yards of concrete fo a slab 30x30x4 thick?
If the units are 30 ft x 30 ft x 4 inches, then you have 30 x 30 x 0.33 ft = 300 cubic feet300 cubic ft/27 cu yds/cu ft = 11.1 cubic yards
How many yards of concrete needed for 24' X 30' X 4 slab?
11.852 cubic yards
How many yards of crushed concrete do you need for a 150'x12' driveway?
Crushed concrete is sold by the ton. One dumptruck will haul between 13 and 15 tons. Your driveway should take around 30 tons if covered 4" thick.
How much does 30 square foot of concrete weigh?
It is all dependant on how thick the concrete is. You take the square footage and turn that into cubed feet (where the thickness comes in) if its 1" thick you multiply the square footage by.083, if its 2" thick you multiply by.17. To come up with this number you take the thickness say 3" and divide that by 12 (12 inches in a foot), so for 3 inches you get .25. So back to the question at hand, say your 30 square feet of concrete is 6 inches thick, your equation would look like this: 30 X .5 = 15. So 15 is your cubed footage. You then multiply this number by 150 which is the weight in pounds of 1 cubic foot of concrete. The number you come up with is 2,250. That is the amount in pounds of your 30 square feet of concrete assuming it is 6 inches thick.
Calculate the number of cubic yards of concrete needed for the cellar floor in a 30 ft x 40 ft house using accurate methods The slab is 3 in thick Show all work?
1 cubic yard = 27 cubic ft3 inches = 0.25 footThe volume of the slab is (30 x 40 x 0.25) = 300 cubic ft= (300 / 27) = [ 11 and 1/9th ] cubic yards = 11.111 (rounded, repeating)
How do you calculate the amount of concrete to order for your driveway if the driveway is 20' wide 40' long and 3 thick?
Multiply length by width by depth (in feet). Divide that number of square feet by 27 to get cubic yards and then allow for a little extra. (20 X 40 X .25 = 200 / 27 = 7.4 yards) The answer is spot on correct however with 30 years of concrete experience I would not recommend a 3 inch thick slab unless you have very light vehicles. Our normal pour for garage slabs or driveways is a 4 inch pour using 3000 psi concrete with air entraining. This will give you a slab that you can depend on for delivery vehicles and others that may use your drive.
How many bags of concrete will you need for 30 ft 30ft 3in thick?
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.
What is a rough cost on a cement slab 30' X 56'?
It would vary with the cost of concrete in your area and how thick the slab would be. I assume by the size that you are building a shop or similar. If so, I would go at least 6" thick. 1 cubic yard at 6" thick covers 6 square yards. So, you will get 6 square yards of concrete out of 1 cubic yard. You have 1680 square feet, divide that by 9 for square yards = roughly 186 square yards. 186 square yards divided by 6 = 31 cubic yards At $110 per yard here in the midwest, it would cost $3410. But, I would figure extra to make sure you had enough when pouring it. Possibly 1 or 1 1/2 yards extra.
