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.

how to calculate rate analysis for shuttering of waffle slab

0 Answers  

Formula for calculation volume of essentric footing

0 Answers  

what is the maximum percentage of crush sand in mix design.also what is the difference betweeen grite powder & crush sand.

2 Answers   TATA, Vastu Kirti Enterprises,

how many kg cement & fine sand reqird in one sq meter 1:6 mortar ratio?

0 Answers   ABC, L&T,

which graph is used for getting target strength relationship

3 Answers   BARC,

what is difference between curtain walling and glazing and spider system which are using in building external finish systems.

2 Answers  

whats are the max value of providing of super-elevation in road way in various condition?

1 Answers   IES,

what is the mix design for M:60 with micro silica andmetakaoline?

0 Answers   L&T,

in 100 cft = 1350 bricks in 100 cft = ? bloks

0 Answers  

what is yield and tensile strength of steel, if steel has yeilding strength of 60 psi than how much its tensile strength?

0 Answers   Wah Engineering College,

What Should be the CBR Value for Transported (Selected) Soil.whether it can be 5% or not ?

3 Answers   Jindal,

what is meant by skyscapers?

3 Answers