Answer / k.shivakumar

M20 - Mix 20 is the Grade of concrete which attains its
compression strength of 200kg per sqcm or 20Ner sqmm or
20Mpa after 28days of casting of concrete

M25 - Mix 25 is the Grade of concrete which attains its
compression strength of 250kg per sqcm or 25 N per sqmm or
25Mpa after 28days of casting of concrete

hence the difference is only 5

Answer / reyazuddin haider

difference of Grade

Answer / ravindra singh rawat

M-20 IS 1:1.5:3 AND M-25 IS 1:1:2

Answer / reyazuddin haider

difference of Grade

Answer / bharathidasan

different strength

Answer / er. vaseem ahamad

Normally m-20 concrete usage is very popular for residential buildings upto three storey buildings.If we try to make m-20 grade concrete with single size coarse aggregate,concrete will be harse and honeycombing chances is more in columns,so ideally we should use 20 mm and 10 mm mix in proportion of 60% and 40% .If this is not possible we have to make concrete 01:02:03 for good cohesiveness in concrete practically.

Er. Vaseem ahamad,gorakhpur

Answer / mathi.v

both are using increcing strength of concrete

Answer / mumbai

m-20 1;1\2;3& m-25 1;1;2 is to be required on r.c.c.const.

1.what is the mix proportion for cement soil compressed earth blocks? 2.how to calculate the mix proportion for cement stablised earth soil blocks?

0 Answers   Sona,

what is zero slump concrete

5 Answers  

how to find the quantity of materials required for constructing a wall of length 10*5*.2m?

1 Answers   ABC, L&T, NCC,

how do we calculate quantity of cement sand and aggregates in 1m3 of m20 m25 grade concrete?

0 Answers   Alfanar, Ancon, RAZ,

what is P.C.C ?

13 Answers   RCC,

What mean by Characteristic strength of concrete (fck)

1 Answers   IJMCPL,

what are the criteria for choosing the span for the bridge (highway bridge)

4 Answers  

How its coming concrete grade M 20 means 1:2:4. how it coming 1:2:4.

0 Answers  

what is the basic fundamental of contouring?

2 Answers  

Rate analysis of Vitrified tile in cement mortor 1:3

0 Answers   Design Space, Muthoot Group,

what will do when 7days concrete has failed and structure has constructed?

6 Answers   Modi Builders,

Define road.

3 Answers