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Question 
how can we calculate the amount of concrete in trapezoidal 
footing?
 Question Submitted By :: Ajay Saini
I also faced this Question!!     Rank Answer Posted By  
 
  Re: how can we calculate the amount of concrete in trapezoidal footing?
Answer
# 1		 if A is length and B is breath and H is total height of trapezoidal footing and a' and b' is size of column n h is trapezoidal portion height.
then total qty of concrete is=A*B*(H-h)+[{h/3{a^2+b^2+(ab)^1/2}]
where a=A*B
b=a'*b' 
Is This Answer Correct ?    3 Yes 2 No
Prashant Verma
 
  Re: how can we calculate the amount of concrete in trapezoidal footing?
Answer
# 2		 It can be find by averaging method

By averaging the width / length of the the footing 
Is This Answer Correct ?    0 Yes 1 No
Satya.mvvs
 
 
 
  Re: how can we calculate the amount of concrete in trapezoidal footing?
Answer
# 3		 if the area of base is A1 and the area of top is A2 then the volume=h/3(A1squr+A2squr+under the rootA1xA2)
nOW QUANTITY(KG)=Volume x Density of concrete
the density of concrete Varies on different conditions but we can take this 1500-2350 kg/cum 
Is This Answer Correct ?    1 Yes 2 No
Ajay Saini
 

 
 
 
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