Answer / devi singh

Propertion in M-20 is 1:1.5:3 and in M-25 is 1:1:2,M-30 is
based upon the disign.

Answer / chandu

M20 (1:1/2:3) M25(1:1:2) there is no proportion for M30 its
a rich design mix concrete only.

Answer / m.haseeb yaquobi

watter, cement, crushed stone meby addmixture

Answer / om prakash narayan

M-20 means lower grade use in slab casting

(1:1.5:3)
M-25(use in coulam casting - 1:1:1.5)
M-25(use in Raft and foundation use and mix Desgion not
1:1:1 ok
through Indian standard code IS:456

Hi how r u ? hope you are fine there . Please can u tell me tha Design life of Buildings as Per ACI CODE 318-99. It will be a pleasure for me .Thanks in advance

2 Answers  

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concrete strenght is increased if using sisal fibre in concrete?

1 Answers  

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the min diameter of steel used in footing are

2 Answers  

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anyone can tell me the consumption of steel and concrete per sqft.?

2 Answers  

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How much of the strength of concrete comes from post- production curing?

0 Answers   EE Limited, Focus, Lafarge,

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what is step foundation

2 Answers  

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what is the life span of water proffing plywood for concreteshuttering work

3 Answers   Fusion, IVRCL,

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for what perpuse we use CBR test in road project?

2 Answers  

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why wire mesh is used in plastering

6 Answers  

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How to test the quality of Ready Mix M20 concrete (1:1.5:3) before casting at site when lorry arrives? Are there any methods?

0 Answers  

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In colomn reinforcement when dia of bar is going to change, than what should be the lap length of bars weather it should be of heigher dia bar lap length or it should the accordance with new dia bar. the grade of concrete is same.

11 Answers  

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What Are The Different Type Of Slump Test Indications?

0 Answers   Bechtel,

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