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Grades of concrete
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Answer / harshal.s.khode,inspection eng
There are so many types of mixes design such as
M5,M10 Shall be used for PCC .but now a days M15 is
outdated for RCC construction,normally it can be used for
PCC work. As per latest INDIAN STANDARD CODES , the started
grade of concrete for RCC as M20.
For grade M20,M25 used for RCC structure.
After grade of M25 the mix design is prepared .depending
upon the type of structures higher grade of concrete is
used asM25,M30,M35,M40,M45,M50,M55,M60,M65,M70,M75,M80
etc.but in india the grade of concrete available upto M60
as per my knowledge, this is not perfect.
| Is This Answer Correct ? | 22 Yes | 3 No |
Answer / venkatesh
M20, M30, M40 Grades of concrete indicates compressive
strength of concrete in Newtons for one mm2 area which is
called the characteristic strength of concrete after 28
days. M20 mean 20 N/mm2 similarly M30 is 30 N/mm2.
| Is This Answer Correct ? | 20 Yes | 1 No |
Answer / sanjay s karpe
Ordinary Concrete M10, M15, M20 (nominal mix)
Standard Concrete M25, M30, M35, M40, M45, M50(done by mix design)
High Strength Concrete M55, M60, M65, M70, M75, M80(done by mix design)
| Is This Answer Correct ? | 11 Yes | 0 No |
Answer / sanjay s. karpe
The meaning of the Grade of concrete is charactorstic
compressive srenth of the 150mmx150mmx150mm concre cube at
28 days age
| Is This Answer Correct ? | 11 Yes | 1 No |
Answer / ibrahim pk
M10,M15, for PCC
M20,M25,M30,M40. for RCC
M50,M60,M70,M75 for Micro Silica in High Grade Concrete.
| Is This Answer Correct ? | 10 Yes | 0 No |
Answer / nitish bajaj
M-5,M-7.5,M-10,M-15 THESE GRADES ARE USED IN
ORDINARY BUILDINGS
For RCC Concrete = M-20,M-25,M-30,M-35
For Coloumn, Pier etc = M-40,M-45,M-50,M-55
For High Grade of Concrete = M-60,M-70,M-75,M-80,M-90,M-100
| Is This Answer Correct ? | 13 Yes | 4 No |
Answer / ram autar saini
Compressive strength of 150 mm size cube at 28 days.
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / sharmila p
M 10,M 15,M 20-ORDINARY CONCRETE
M 25,M 30,M 35,M 40,M 45,M 50, M 55-STANDARD CONCRETE
M 60,M 65,M 70,M 75,M 80-HIGH STRENGTH CONCRETE
| Is This Answer Correct ? | 6 Yes | 1 No |
Answer / yash kandari
O.C:- M10, M15, M20
S.C:- M25, M30, M35, M40, M45, M50
H.S.C:- M55, M60, M65, M70, M75, M80
| Is This Answer Correct ? | 5 Yes | 0 No |
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