what should be the strength of Concrete cube strength for 7
days, if the designed mix is M20?

Answer Posted / g.mugesh

Grade of concrete:m20

7days test (67.5%) - 20*67.5/100=13.35 N/MM2
28days test(100%) - 20 N/MM2

Is This Answer Correct ?    19 Yes 10 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

For the construction project what capital cost has to be taken in consideration?

676


How we calculate the service time of buildings

1430


how to calculate labour strength for work for RCC,brickwork,blockwork,in &out plaster,flooring,dado,door frame & shutter,painting etc for constructing highrise building?

3322


Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40

91583


What is specific gravity???

882






WHAT THREE SPECFIC JOB POSITIONS TO YOU TARGET FROM THE COMPANY?

1600


Why the statue of liberty is made of copper?

658


Rate analysis of 150mm, 100mm, & 230mm thk BBM work

7886


what is m30 in concrete tiles

1896


i) Distinguish between Theodolite and dumpy Level? (Marks-8) ii)Distinguish between Viscous and Turbulent flow? (Marks-8) iii) Distinguish between nominal and design mix? iv) What is standard sand? v) Explain the term plane stress? Vi) Differentiate between principal plane and principal axis? Vii) write short notes on Elastic limit of structural steel? viii) Write short notes on stress concentration? ix) write short notes on "Grading of Sand" ? x) How many grades of concrete are there under standard concrete?

11539


How to decide/consider the grade of bitumen for dbm.

1767


At what point does a circle start losing area when being flattened?

636


how pumping of concrete effects the quantity of material used in it?

1297


I want to know about rolling margin of steel :- For eg. If 2nos. bundle of 8mm dia steel with17 rods each of length 12m comes to store. During testing of 1m rod of each bundle it was found that 1rod has weight .405kg/m while other has .385kg/m. Now what will happen in case of steel payment and measurement payment ? Regards,

1886


what is the exact dia of 8swg and 10swg gabion wire

1844