Kindly furnish the relation between 7 days strength & 28 days compressive

Kindly furnish the relation between 7 days strength & 28
days compressive strength of Cement Concrete cubes. Can you
clarify whether the relation gets altered due to WATER-
CEMENT ratio?

Question Posted / gothandaraman.r

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Kindly furnish the relation between 7 days strength & 28 days compressive strength of Cement C..

Answer / manohar cherala

The relation between the strength of concrete at lower age
and 28 day depends on may factors like chemical
composition,fineness of cement and temparature of curing.
Mixes with lower water cement ratio's gains early
strength's more rapidly than that of concrete with higher
water cement ratio's.Because of arrangement of cement
particles more closer in lower water cement ratio's and
formation of continous gel which gives more strength.

In general the 7 day strength is not less than 65% of 28
day strength

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Kindly furnish the relation between 7 days strength & 28 days compressive strength of Cement C..

Answer / palash

1 day strength - 16%
3 days - 40
7 days - 65
14 days - 90
28 days - 99

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Kindly furnish the relation between 7 days strength & 28 days compressive strength of Cement C..

Answer / vinaysagar donakanty

The 7 days strength is help you to deshutter the shuttering for slab or beam. According to 7 days results we able co-relate the strength we will achieve the strength at 28 days. The lower W/C higher the strength.

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Kindly furnish the relation between 7 days strength & 28 days compressive strength of Cement Concrete cubes. Can you clarify whether the relation gets altered due to WATER- CEMENT ratio?

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