Answer / gurumoorthy

M stands for Mix
Grades vary from M5 to M65 ( Indian Practice )

Answer / shalini

M-mix
M20,M25,M30,M35,M40,M45

Answer / ajay prasad

Ordinary concrete- M10,M15,M20
Standard Concrete-M25,M30,M35,M40,M45,M50,M55
High Strength concrete-M60,M65,M70,M75,M80
Here are two grades also specified in BIS for lean concrete
M5 and M7.5
Where M refers to Mix and the given no. specified the
characteristics compressive strength of 150 mm cube after 28
days curing on normal temperature..

Answer / dinesh

M-stands for mix (like m20=1:2:3)
Types of grade are M10,M20,,,,,,,,,,,,,,,,M50,M60ETC

Answer / s.rajmohan

Ordinary concrete- M10,M15,M20
Standard Concrete-M25,M30,M35,M40,M45,M50,M55
High Strength concrete-M60,M65,M70,M75,M80
Here are two grades also specified in BIS for lean concrete
M5 and M7.5
Where M refers to Mix and the given no. specified the
characteristics compressive strength of 150 mm cube after 28
days curing on normal temperature..

Answer / s.thiyagarajan

there are three types of grade in concrete.
1.normal mix concrete
2.standard mix concrete
3.high strength mix concrete
M means mix proposition.

Answer / debasish pramanick

In the designation of a concrete mix,letter M refers to the mix and the number to the specified characteristic compressive strength of 15 cm. cube at 28 days,express in N/mm2.As a example M25 = 25 N /mm2 or 250 Kg./cm2 (app).

Answer / amit raval

Ordinary concrete- M10,M15,M20
Standard Concrete-M25,M30,M35,M40,M45,M50,M55
High Strength concrete-M60,M65,M70,M75,M80
Here are two grades also specified in BIS for lean concrete
M5 and M7.5
Where M refers to Mix and the given no. specified the
characteristics compressive strength of 150 mm cube after 28
days curing on normal temperature

Answer / vaibhav mulay

Letter M represents mix (concrete mix) and the number followed after M represents the compressive strength to be attained in N/sq.mm at 28 days age when a standard cube of 150x150x150 mm is subjected to standard compressive test. Both combinedly termed as Grade of Concrete.

Thus, a concrete of M30 grade should attain a compressive strength of 30 N/sq.mm at 28 days age.

Answer / suresh kannan,n

M means concrete cube casting,curing after 28days
compressive stength

"Gates of the dams are generally designed of curved shape". Why?

0 Answers  

what is lifespan of an RCC structure? Why the RCC structures failing in quater of its life span?

13 Answers  

What things architect have to take care of before starting any project?

0 Answers  

what is the construction cost for per cft of multistorryed building in kolkata?

0 Answers  

how to determine H- zone in a column? where it will occur?

0 Answers  

what motivates you to do a good job

1 Answers   Flextronics, HPCL, ISRO,

What is the consumption of Brick in one meter cube both 6inch & 4inch thick

4 Answers  

08. 4 main points about check list for Shuttering works are––– 4 i) ii) iii) iv) 09. 4 main points about check list for Concreting works are––– 4 i) ii) iii) iv) 10. 4 main points about check list for Plaster works are––– 4 i) ii) iii) iv) 11. 4 main points about check list for Brick works are–– – 4 i) ii) iii) iv) 12. 3 main points about Project delaying factors are––– 3 i) ii) iii) 13. Write down 60-grade M.S. deformed bar specification. 3 14. 3000 psi concrete means: 1 15. 4 main points about methods of wastage control are–– – 4 i) ii) iii) iv) 16. 1 main point about reasons for your honesty is : 1 17. Water cement mixing in hopper less mixture machine is better than hopper mixture machine because: 1 18. 2 main points about your role during roof casting are–––– 2 i) ii) 19. a. The weight of 3333m deform bar of 24.5 mm dia is…… 1 b. The weight of 300 rft plain bar of dia 1 is……. 1 20. The types of slumps are––– 3 i) ii) iii) 21. 4 main points about the causes of cylinder failure are––– 2 i) ii) iii) iv) 22. Detection of a beam & a girder are–––– 2 i) ii) 23. Curing is needed for–––– 1 24. The types of slabs in respect of size & shape are––– 5 In respect of size: i) ii) In respect of Shape i) ii) iii) 25. The types of Column in respect of size & shape are–– – 9 In respect of size: i) ii) In respect of Shape: i) ii) iii) iv) v) vi) vii) 26. 3 field tests & 3 Laboratory tests of bricks are––– 6 Field tests: i) ii) iii) Lab test: i) ii) iii) 27. 2 field tests & 1 Laboratory tests of sand are––– 3 Field tests: i) ii) Lab test: i) 28. 1 field tests & 1 Laboratory tests of M.S rod are––– 2 Field tests: i) Lab test: i) 29. a. The % of water absorbs by brick chips: …………… 1 b. The % of water absorbs by Stone chips: …………… 1 30. In respect of design: 5 a. The % of strength gains by concrete in 28 days= b. The % of strength gains by concrete in 14 days= c. The % of strength gains by concrete in 07 days= d. The % of strength gains by concrete in 03 days= e. The % of strength gains by concrete in 28 days without curing =

3 Answers  

HOW TO DETERMINE FOUNDATION DEPTH OF A MULTYSTORIED BUILDING. IS THERE ANY OTHER FORMULA EXCEPT RANKINE'S MINIMUM DEPTH FORMULA.

1 Answers  

what in total station list counting

2 Answers  

What is the difference between chamfer and fillet?

0 Answers  

For Granite Flooring,For Cement Slurry purpose which one is effective of cost control whether OPC or PPC or White cement?

0 Answers   Jain Housing,