Why we do design mix of concrete when there is nominal
method using the IS-Code available ?

Answer Posted / mallikarjuna (nitw)

to ensure required |Target Mean Strength by controlling the
parameters of aggregate,sand and water accurately ....n
also to design higher grade of concrete ...

....incase of nominal mis method(say),M15 means 15mpa
comp.srength on 28 days using 1:2:4 proportions without
considering various conditions of conareting
materials ...the same will be rectified in design mix .

simply nominal mix is blind technique where as design mix
is live n vibrant method of mix design in concrete
technology to achieve anticipated TMS.

Is This Answer Correct ?    46 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Which is the most prominent tower of world?

635


usually hand broken stones are used for cement concrete 1:4:8 in foundation of single /two story houses with a view of economy in construction.what advantages it will give if you use machine crushed stone in place?

1703


When was the first motorway built in england?

654


what is high type road and low type roads

1195


What is the tensile strength of marble?

656






Formula for calculating the volume of bulb in underreamed pile

4409


what course did you consider thinking before you enrolled in college?

1924


What is the force exerted by the tacoma narrows bridge?

742


in a corner footing of a building, column lies in one corner. in this condition i want to know if the reactive pressure of soil will be uniformly distributed throughout the footing or will be uniformly varying as in the case of eccentrical loading.

1731


What year was the keystone power plant in Indiana County constructed?

735


what is the weight of 12mm aggregates?

1098


I am doing a engineering contract with GOI. I have purchased certain material from outside Maharashtra and paid CST on that material @ 5.25%. Please intimate whether I will be liable for VAT or VAT on works contract or not.

1594


how much cement is consumed by a stone masonry wall 17.7m long,0.55m wide and 1m high

1441


Explain the difference between shear and tensile strength.

667


can you give me the details of rate analysis of steel and concrete?

2472