Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion

Discussion Forum : Soil Mechanics and Foundation Engineering - Section 1 (Q.No. 1)
1.
In a liquid limit test, the moisture content at 10 blows was 70% and that at 100 blows was 20%. The liquid limit of the soil, is
35%
50%
65%
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
123 comments Page 11 of 13.

Swarnanka Das said:   1 decade ago
We can get it from flow index value, I.

n1 = 10; w1 = 70%.
n2 = 100; w2 = 20%.

Flow index (I) = (w1-w2)/log(n2/n1) = 50;

wL = Ilog (n2/25)+w2;

log(2) = 0.301.

wL = 50.10%.

OPTION B.

Rahul singh said:   1 decade ago
Please clarify the answer.

Dipak said:   1 decade ago
By interpolation wL = 61.67.
By flow index method wL= 50.

Vasundhara said:   1 decade ago
I got 61.65% any one explain how it is 65%?

K s chetan said:   1 decade ago
Hello @Mr.V Ramesh.

How come it possible Liquid limit = 70*(10/25)^0121 = 89.55%?

Ankit Joshi said:   1 decade ago
I have a question to @Mr. V. Ramesh that how 89.55 becomes 88 and 23.65 becomes 23?

Vishal singh said:   1 decade ago
As per graph it comes near 65% and as per flow index its value come 50.10%.

Please anyone explain right one method.

Pankaj said:   1 decade ago
Try it with coordinate geometry.

My answer is 63.33%.

Butera said:   1 decade ago
How do you get 89.55%?

Adsam Gideon said:   1 decade ago
I tried it again and again, I got 50% as answer some one please clarify.


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