what are the diffrent kind of grades in concrete and what does
M means while specifyng the grades?
Answers were Sorted based on User's Feedback
Answer / gurumoorthy
M stands for Mix
Grades vary from M5 to M65 ( Indian Practice )
Is This Answer Correct ? | 44 Yes | 5 No |
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..
Is This Answer Correct ? | 22 Yes | 4 No |
Answer / dinesh
M-stands for mix (like m20=1:2:3)
Types of grade are M10,M20,,,,,,,,,,,,,,,,M50,M60ETC
Is This Answer Correct ? | 22 Yes | 11 No |
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..
Is This Answer Correct ? | 5 Yes | 0 No |
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.
Is This Answer Correct ? | 9 Yes | 5 No |
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).
Is This Answer Correct ? | 8 Yes | 4 No |
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
Is This Answer Correct ? | 3 Yes | 3 No |
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.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / suresh kannan,n
M means concrete cube casting,curing after 28days
compressive stength
Is This Answer Correct ? | 8 Yes | 15 No |
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