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.
To satisfy the ASTM standard requirements for normal consistency of cement: The Amount of Water that brings the cement paste to standard condition should vary between 22% to 30% by weight of dry cement.
20" x 30" x4"
The 30 x0 20 x 4" answer should be for a 50kg bag. A 25kg bag of cement is 43 x 22 x 14 cm according to Blue Circle on Amazon, that is 17" x 8.6" x 5.5" in old money.
It is normal for Ordinary Portland cement to have a consistency ranging from 25-35%. To prepare cement paste of standard consistency, 25-35% of water must be added to cement. For a more detailed explanation, let us assume that a standard consistency is 30%. To make this quantity, add 30% water to 400g of cement.
What is mixing ratio for concrete grade 30
9.3 cubic yards of cement is required for this slab.
About 3.
Assuming that's 30 ft X 30 ft X 6 inches, you will need 20 cubic yards
$200 I heard it costs $30 per coin. So if you see a slabbed silver dollar for under $30, it may be a good investment.
This depends on the slab thickness required in your area. A six-inch slab would give this calculation: 13.3 yd x 20 yd x 1/6 yd = about 45 cubic yards. Single story residences on stable compacted ground are allowed to be as thin as 4 inches in many areas, which would require only 30 cubic yards.
To satisfy the ASTM standard requirements for normal consistency of cement: The Amount of Water that brings the cement paste to standard condition should vary between 22% to 30% by weight of dry cement.
feed it 30 pokeblokes the rough and the sweet 30/30 try it
Knots Landing - 1979 Cement the Relationship 8-30 was released on: USA: 14 May 1987
The Rough Riders - 1958 Gunpoint Persuasion 1-30 was released on: USA: 30 April 1959
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)
2.15
I 'm guessing probably around 30 dollars.