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Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 1 (Q.No. 6)
Concrete Technology
6.
M10 grade of concrete approximates
1 : 3 : 6 mix
1 : 1 : 2 mix
1 : 2 : 4 mix
1 : 1.5 : 3 mix
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
53 comments Page 5 of 6.
Manoj kumar said:   1 decade ago
Please tell me what is the calculation of find the grade of concrete. I know only the means of m10 10kn /mm2 strength but I don't know in which use the ratio in mix.

So please help me and send me mail the method of calculation in mixing ratio in all grade of concrete thnks.
Mohammed shafeek said:   1 decade ago
@Sneka, your assumption is wrong, for M-15 ,the ratio is 1:1.5:3 by yours way summation all 1+1.5+3 = 5.5.
Sridhar B said:   1 decade ago
M30-Depend on design mix (OR) M-30 = 1:1:1.
Nitin said:   1 decade ago
For this firstly, you can understand the two term:

First term:- Nominal mix.
Second term:- Design mix.
Kashif said:   1 decade ago
The general expression is 1:n:2n by volume where n is the number of sample test conducted.
Vignesh said:   1 decade ago
For m50 what will be the ratio?
Manju said:   1 decade ago
@Kashif.

How we can determine the number of sample tests?
Dev nandan said:   1 decade ago
M15 is 1:2:4.

M20 is 1:1.5:2.
Ashish bhargav said:   1 decade ago
Hello friends please tell me some material name by use of which we can increase the performance of concrete except admixture like silica fume, or some other chemical admixture.

Please if someone have any idea then please inbox me. Please help me try to give some innovative ideas.
Satani Mohit said:   1 decade ago
@Vignesh.

M30 to above grade is ratio 1:1:1 (Cement:Sand:Aggregates).
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