Using a waste factor of 8 percent, determine the number of cubic yards of concrete needed to pour the continuous footings shown in Figures 10.38 and 10.39. Assume that the wall is centered over the footing.
What will be an ideal response?
The footings extend one foot beyond the wall on both sides. The lengths of the footings are shown in Figure 11-2.
Length of Footing (ft) = 26? + 42? + 26? + 42? + 12? + 15? = 163?
Cross-sectional area (sf) = 3? × 1?3? = 3.75 sf
Volume of concrete (cy) = 3.75 sf × 163? = 611 cf / 27 cf per cy = 22.63 cy
Add 8% waste and round off.
Volume of concrete (cy) = 22.63 cy × 1.08 = 24.44 cy – Use 24.5 cy
You might also like to view...
Where does Climate Zone 0 exist?
What will be an ideal response?
The height of the object on an isometric sketch is shown on the _____ base line.
a. vertical b. left-side c. right-side d. horizontal
Welders must maintain a short arc when welding stainless steel to limit atmospheric contamination, which
causes _____. a. corrosion b. flexibility c. hardness d. porosity
One tool that can be used to check the alignment of two pulleys is a _____
a. dial indicator b. micrometer c. ruler d. tachometer