Interested to Buy Any Domain ? << Click Here >> for more details...
how do we calculate quantity of cement , sand and
aggregates in 1 m3 of M30 grade concrete ?
- 31 Answers
- 442075 Views
- ABES Engineering College, Gammon, Jalanidhi, NCC, I also Faced
- E-Mail Answers
Answer Posted / rajarshi basu
The approach by Sjtbehera is totally correct but has some
little silly mistakes...I have tried to give a rectified
solution.
In the case M30 design mix, the quantities of cement,sand
and aggregates cannot be calculated as it is a variable
quantity.It depends upon the Mix designer how much quantity
of cement,sand and aggregates he will employ.His only
intention would be to design a mix whose specified
characteristic compressive strength at 28 days=30 N/sq.mm
But in case of nominal mix we can use 1:1:2
Let us consider a volume of 10 cu. m (Wet concrete)
It is difficult to access exactly the amount of each
material required to produce 10 cu m of wet concrete when
deposited in place.
Hence to convert the wet volume into dry volume,
Increase by 54 % to account for shrinkage and wastage
Thus it becomes=15.4 cu. m (Variable upto 15.70)
Calculating cement, sand and aggregates in the mix:
Total summation of proportion=1+1+2=4
Cement = 15.4/4= 3.85 cu. m =3.85/0.0347=110 bags
Sand=15.4/4=3.85 cu. m
Aggregates(20mm to 6mm)=15.4 x (2/4)=7.70 cum
Hope u have understood and the mistake is clarified!!!
| Is This Answer Correct ? | 174 Yes | 65 No |
Post New Answer View All Answers
Does degree of bend of rebars has any effect on strength of the member? For example- if a beam is designed with 45 degree bent up bar with respect to architechtural needs and is not 45 in practical so will there be any reduction in the strength of member?
Kindly post me previous year interview questions with answer for post of DY. Manager (civil engg.) for GAIL, NTPC, IOC, OIL and ONGC etc.
what is stressing
how much st. steel is required for staging of concourse slab of a elevated metro station allowing through traffic .
what is the exact dia of 8swg and 10swg gabion wire
how do we calculate quantity of cement sand and aggregates in 1m3 of m20 m25 grade concrete?
In case if concrete box girder bridges how is the number of cells determined?
What difference comes in constructing of house and a housing complex like society
How to increase a bearing capacity of soil?
what is the composition of good brick ?
What is the life of anaerobic Digester if it is used for municipal solid waste digetion.
How to calculate woden area in sft and Cft
How to produce the Concrete Grade 30mpa at 12hour? How to prevent for plastic shrinkage crack? How can we produce fire resistant concrete?
Explain moment of inertia?
i need the syllabus for the direcr recruitement of executive engineers in andhrapradesh
