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A bag of Quickcrete weighs 80 lbs dry. When water is added it can weigh another 1.5 to 2 lbs. when the water evaporates it will sill retain some water; so, about 80.5 lbs. The Quickcrete covers 1/2 cu ft. or 2 sq. ft. @ 3" thick. 21X20= 420 sq ft X 40.25= 16,905 lbs. or there abouts.
What else can I help you with?
How many yards of concrete to make a 20' x 20' slab?
about 5 yards if your slab is 4" deep
How much weight can a square of concrete 1 meter on a side and 20 cm thick hold?
There are too many variables that are not quantified in the question to answer this. What kind of concrete? (There are different kinds.) Is the concrete reinforced? How is the square of concrete supported? What is the nature of the load and how is it distributed on the slab? We could go on.
How much does a 20x20x15' concrete column weigh if concrete used is 125 lbsft3?
20" = 1.666666667' 1.666666667 X 1.666666667 X 15 = 41.66666667^3 41.66666667^3 X 125lbs = 5,208.333334 lbs I an assuming that the 20 is in inchs and not feet. If the 20 is feet, than it would be 20 X 20 x 15 x 125.
How much of the strength of concrete comes from post production curing?
20%
Can you give 20 examples of concrete noun?
Examples of concrete nouns:applebathtubcandledogeggfeetgardeniaharpicejuicekayakladdermittensnoseoceanparrotquiltropestartulip
How many yards of concrete to make a 20' x 20' slab?
about 5 yards if your slab is 4" deep
How many yards of concrete will you need to do a 20x20x4 slab?
how many yards of concrete will i need to do a 20 x20 x4 slab
How much does a concrete slab 20' x 20' 3 thick?
Your question is missing a verb. Do you want it's weight? It's cost? Something else?
How much do paving slabs weigh approximately?
A standard paving slab will weigh approximately 70KG, which is about 154 pounds. Of course, it varies in weight according to the actual size of the slab, but that is what the average standard slab will weigh.
How many bags of concrete to pour a 4 inch slab 8' x 10'?
20
How many yards of concrete to pour a 20 ft by 20 ft slab 4inches thick?
4.938 cubic yards.
How much weight can a square of concrete 1 meter on a side and 20 cm thick hold?
There are too many variables that are not quantified in the question to answer this. What kind of concrete? (There are different kinds.) Is the concrete reinforced? How is the square of concrete supported? What is the nature of the load and how is it distributed on the slab? We could go on.
How man yards of concrete do you need for a 9x20?
For a 9' x 20' by 4" slab you will need 2.22 cubic yards.
How many yards of concrete for slab that is 20'x60'x4''?
14.8 cubic yards will work but round to 15 to be sure.
How much does two gallons of concrete weigh?
Nothing. Concrete doesn't come in gallons for measuring. Milk is in gallons.
How much does a 20x20x15' concrete column weigh if concrete used is 125 lbsft3?
20" = 1.666666667' 1.666666667 X 1.666666667 X 15 = 41.66666667^3 41.66666667^3 X 125lbs = 5,208.333334 lbs I an assuming that the 20 is in inchs and not feet. If the 20 is feet, than it would be 20 X 20 x 15 x 125.
How many square yards of concrete are required for a slab 60 feet by 20 feet by 6 inches thick?
The area of that slab is (60 x 20) = 1,200 square feet = 1331/3 square yards.But that doesn't tell you how much concrete you'll need in order to pour it.What you really want to know is the cubic yards of volume required. That'swhat the concrete guys are talking about when thery say "yards" of concrete.1 cubic yard = 27 cubic feetVolume = (length) x (width) x (height) = (60 x 20 x 1/2) = 600 cubic feet = 222/9 cubic yards.( 22.22222... )
