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Question 11 (10 points): Determine the volume of concrete in cubic yards needed to complete 10 of the footings and columns sh
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Answer #1

1)Footings-Volume of Concrete

From the given figure,size of the footing is as follows

Length = 3'

Breadth = 3'

Depth =1'

Volume of concrete =Length x breadth xdepth

                            =3 x3 x 1

                            =9 Cft

Considering 10% wastage ,concrete required = 9 + 0.9 =9.9 cft

For 10 footings total quantity required = 10 x 9.9 =99 Cft = 3.6 Cubic Yard

2)Columns-Volume of concrete

From the given fig,size of the column is as follows,

Length = 18"=1.5'

Breadth =18" =1.5'

Height =8'

Volume of concrete =1.5 x 1.5 x 8

                             =18 cft

adding 10% wastage,volume of concrete =18 +1.8 =19.8 cft

For 10 columns,quantity of concrete required = 10 x 19.8 =198 cft =7.3Cubic yard

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