compressive strength of m20 concrete in 7days

03-09-2012· 03-09-2012· The strength of M20 concrete for 7days will be 63%( say 12.6) of 28days strength i.e. 20N/sq mm

Percentage strength of concrete at various ages The strength of concrete increases with age. Table shows the strength of concrete different ages in comparison with the strength at 28 days. Age Strength per cent 1 day 16% 3 days 40% 7 days 65% 14 d...

It's 23 Mpa Detail's - Concrete Mix Ratio gains its strength over time at the hardened state. e.g.— for curring 1st day concrete gain strength 16%,for ...

I am in construction field,pl.send me the value of max. and min.crushing strength of M15 M20 grade concrete in 7days,28days and 60days. Reply. Swapnil Kulkarni says ... Can you please confirm whether the compression strength for M 20 RCC slab results are as below 15.6 15.1 23.1 N/mm2, The Propportion of Cement, Sand and Aggregate in concrete ...

60 Yes. 21 No. what is the compresive strength of m20 concrete at 7 day.. Answer / munish neb. for 7 days: 60 -70%,for 14 days : 80 - 90%, for 28 days : 100 %. for all types of grade.

02-07-2011· 02-07-2011· What is the Compressive strength of M 20 concrete at seven days? Wiki User. ∙ 07:37:00. See answer. Best Answer. Copy. ANS: The 7-day strength of concrete …

Compressive strength of cement at 7 days & 28 days. Compressive strength of cement is determined by cube test on cement mortar cubes compacted by means of a standard vibration hydraulic machine. Standard vibration for making cube is 12000 +- 400 vibration per minute and it will vibrate for 2 minute.

7 days compressive strength is around 70% of the designed target strength, hence a grade 20 concrete should have a minimum of 14N/mm2 at 7 days. However this is only an approximation. 7.2K views

what is the compresive strength of m20 concrete at 7 day.. Answer / ak mishra as m20 is we know compressive strength of M20 after curing will be 20kn/m2.but after 7 days it will

Compressive strength of different grade concrete at 7 days. Table 2: compressive strength of concrete at 7 days measured in MPa (N/mm2) or psi. Conc. Grade MPa psi M10 —- 6.5 MPa or 940 psi M15 —- 9.75 MPa or 1410 psi M20 —- 13 MPa or 1890 psi M25 —- 16.25 MPa or 2360 psi M30 —- 19.25 MPa or 2790 psi

In this M20 Grade concrete is used and for that Ferrock and Water The cubes are tested after the curing duration of 7 days 28 days and 56 days In this research work there was replacement of the cement with the ferrock having a percentage variation To determine the test result for the compressive strength of green concrete...

M20 Concrete Compressive Strength. In which m is stand for concrete mix design and numerical figure 5,7.5,10, 15 and 20 is characteristics compressive strength of concrete after 28 days of casting and curing time generally it is represented as 5 nmm2, 7.5nmm2, 10nmm2, 15nmm2, 20nmm2 respectively.It means fck value for m20 grade of concrete is 20 nmm2.

Compressive strength of M20 concrete at 7 days: Making of at least 3 concrete cube size each 150mm×150mm×150mm in mould by cement sand and aggregate ratio 1:1.5:3, use tamping rod for levelling the surface of mould, it is kept for 24 hours setting after water mix in concrete, after 24 hours it is kept in water for curing for 7 days.

What is the formula of compressive strength of a 7-day concrete cube in M20? Unfortunately that "formula" contains a number of variables to which I am not privy. Variables such as what binders are in the mix, and the temperature and moisture condi...

This is 65% of the characteristics strength. In case of M20, 7th day strength shall be : 20*0.65=13 N/Sqmm. Got it now? Thank you for the A2A Best wishes


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