2.25 yd.3 but you should get at least 2.75 to 3 cubic yards so you don't run out.
Area of circle= 3.14 x r2, 6 in.=0.5 dec. ft., 27 cu. ft. = 1 cu. yd.
3.14 ft x 6ft2 x 0.5 ft = 56.52 ft3 then 56.52 ft3/27ft3 =2.09 yd3 (then round to nearest quarter of a yard) = 2.25 yds3
A 10-foot round slab at 4 inches requires 1 cubic yard.
2.15
14.81 yds
625 times 0.5 = 312.5 cubic feet will be needed
you can do the math: LXWXD DIVIDED BY 27
A 10-foot round slab at 4 inches requires 1 cubic yard.
To measure the concrete needed for a circular pad:-- Decide how thick (deep) the pad is to be. If it's in inches, divide by 12 for thickness in feet.-- Measure either the circumference or the diameter of the circle, in feet.-- If you measured the circumference, then the cubic yds of concrete needed is(0.00295) x (circumference) x (circumference, again) x (thickness) ... all in feet-- If you measured the diameter, then the cubic yds of concrete needed is(0.0291) x (diameter) x (diameter, again) x (thickness) ... all in feet
2.15
14.81 yds
625 times 0.5 = 312.5 cubic feet will be needed
A 9x9 foot slab 4 inches thick requires a minimum of 1 cubic yard. If you go to 6 inches thick you will need 1.5 cubic yards.
you can do the math: LXWXD DIVIDED BY 27
You need to specify the slab's width and the length as well.
how many cubic feet in a yard of concret
30-inch (inside diameter) RCP has a wall thickness of 2.75 inches. Therefore, the outside diameter of 30-inch RCP is 35.5 inches.
You need to specify the slab's width and the length as well.
Concrete driveways are no less than 3.5 inches to 4.5 inches.