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How much gap is required between pouring casting of ground floor and pouring concrete for column

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How much gap is required between pouring casting of ground floor and pouring concrete for column
 

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Usually it takes about 28 days for concrete to achieve its design strength but you can start column construction just after two weeks of finishing of ground floor because while construction of columns you would not be utilizing all the design strength at once.
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asked Aug 21, 2015 in Civil Engineering by mfby2k  
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asked Jul 6, 2015 in Concrete Technology by mfby2k  

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