Answer / nimmakayala

compressive strength of strength of CONRETE
M denotes mix and
20 is 20N/mm² compressive strength after 28days of curing.

Answer / guest

M means Mix
20 means compressive strength of the concrete

Answer / vijay kumar.g

M -means mix propotoins like(cement,fine aggregate,coarse aggregate and admixtures)
20-means grade of concrete (1:1.5:3)

Answer / vikas chauhan

M refers to MIX means symbol M denote MIX.
& number 20 denote the "CHARACTERISTIC COMPRESSIVE STRENGTH" in N/mm^2 or MPa after 28 days curing.
Means 20 N/mm^2 or 20 MPa (Mega Pascal)is the "characteristic compressive strength" of concrete after 28 days curing.

Answer / varun

M20means
1bag cement (2tokri of cement)
1.5 sand (3 tokri of sand)
3 aggregate (6 tokri of bajri)
1:1.5:3

i am also applied for the AAI jr executive (CIVIL) written test. pls forward me the syllabus & test pattern if any question papers, any one got reply for this quaries? if ANY ONE KNOW THE DATES OF WRITTEN EXAM PLZ TOLD ME. dreamyagrawal@yahoo.com

2 Answers   AAI Airports Authority Of India,

How to calculate the no of bags required for 12mm thick 1:6 plastering?

10 Answers   Raj Construction,

to minimize budget cost of building , what can i do

0 Answers  

what is smart building materials?

0 Answers  

2. What are the advantages of your present job, things you like about it?

0 Answers  

wat would be the probable interview questions and GD topics for IOCL exam?

0 Answers  

A lorry contains 3-Units of material(Sand/Metal/Gravel...) so 3-Units means how many (CFT and M3)

2 Answers  

how to consider the lap length of a bar in IS code.

7 Answers  

productivity of steel fitter per day

2 Answers   Shapoorji Pallonji,

How gate result to cube for 7 day? Formula for the cube testing?

1 Answers   Ambuja, Indiabulls, Legacy,

how to read the drawings to find the quantity of steel in a storm water manhole or any other structure?

0 Answers  

What is the difference between opc cement to ferro cement

0 Answers