use 1:1.5:3 concrete footing size 9'9" *9'9" and square 12" and also trapezoidal 22" use of 4 columns. calculate how much amount f concrete use. and also tell me the details about course aggregate and fine aggregate and cement bags use .(note; 20mm coures aggregate use)
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Answer Posted / shorif
Trapezoidal formula:
k/6(A1+A2+4AM)
legend: A1 = Footing area,
A2 = Column size area
AM = (A1+A2)/2,
K= slope height
you can get result for using this formula for trapezoidal section
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