Answer / ravisobhan

7 days strngth is at 2/3rds of 28days stength. this is
required to check the concrete strength gaining in view of
removing formwork and to take preautionary measures incase
of failures before deshuttering.

Answer / roby

For cement concrete the setting time is a dependent out put depending on type of cement..type & max dia of aggregates,admixtures..environmental conditions and al..inspite of all this IS:456-1984 suggest tat about 66.7%....but still it has to be performed in lab nd checked.......

Answer / balaji

compressive strength of 28 days cube is more than the 7
days cube

which concrete grade has highest strenth and what is its comosition?

13 Answers   UltraTech,

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How do we get this formula Ast=(0.5Fck/Fy) into(1-(in sqrt(1-((4.6Mu)/Fck.bd^2))into bd Fck=grade of cement i.e M25, M20 Fy=grade of steel i.e.Fe415,Fe250 Mu=moment b=width d=depth 

1 Answers  

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WHY DID YOU CHOOSE THIS CARRIER?

2 Answers  

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8. What do you find more useful in your present work – your education or your practical experience from previous jobs or traineeships?

4 Answers  

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very simple or less time consuming formula for reinforcement calculation by moment

0 Answers  

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how do i find the fixed end moments in the fixed beams with the use of general method?

1 Answers  

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Is the ratio fixed for M-20,M-25,M-30,M-35....grades of concrete??

2 Answers   Ahluwalia Contracts, L&T,

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what is meant by GANTRY GIRDER?

6 Answers  

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During reclamation how can the occurrence of mud waves can be rectified?

0 Answers  

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What is the difference between Fe500 and Fe500D rebars in their appearance and also is there any change in their Yield Strength of these rebars?

1 Answers   Ripple India,

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Define Who designed the city of Washington DC?

0 Answers  

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how to calculate column load bearing? how many weight capacity in 1m3 concrete? pls answere me sir.

2 Answers  

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