Answer / m s chouhan

Generally M20, 20 MEAN 20 KN/MM2
SAME AS M200, 200 MEAN 200 KG/CM2
SAME THING SHOW IN DIFFRENT UNIT STANDARDS

Answer / kiran t

M20 means 20N/mm2 or 200kg/cm2

Answer / shalu verma

MEANING OF M20 AND M200 :-

M IS STANDS FOR "MIX"
AND 20 AND 200 IDICATES THE COMPRESSIVE STRENGHT OF THAT
MIX IN "N/mm2"

LIKE, for M20 C.S IS 20 N/mm2
for M200 C.S IS 200N/mm2

Answer / mizpah

Compressive strength of concrete.

Answer / prashant kumar verma, b l kash

m-20 means permisible compressive strength of concrete in
N\mm^2
M-200 means permisible compressive strength of concrete in
Kg\mm^2

Answer / br kumar

as per IS 456-2000, M20-means mix having char comp strength of 20 N/mm2.(code doesn't recommend M20=200kg/cm2)

similarly,
M200-means mix having char comp strength of 200 N/mm2.(practically no concrete is available as on date)

Answer / naushad bashir mir

M20 means itz an ordinary concrete.M refers to the mix and number (20) represents the characteristic compressive strength of concrete N/mm2 which means 20N/mm2 .And also one thing there is not any m200
Concrete had only 15 grades M10 M15 M20 M25 M30 M35 M40 M45 M50 M55 M60 M65 M70 M75 M80

Answer / sunil chaurasiya

Generally M20 Grade mean carries 20KN/mm2

Answer / adeel

M20 or M200 shows 28 days compressive strength of concrete cylinder test.
*M20 is strength of 20N/mm sqr
*M200 is strength of 200kg/cm sqr
* M shows the mix rati of concrete for M20 the rati is 1: 1.5 : 3

Answer / dipen

Generally M20, 20 MEAN 20 KN/MM2
SAME AS M200, 200 MEAN 200 KG/CM2

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