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Secondary compression proceeds linearly with ________

(a) root of time

(b) square of time

(c) logarithm of time

(d) cube of time

I have been asked this question in unit test.

Enquiry is from Secondary Consolidation and Three Dimensional Consolidation topic in chapter One Dimensional Consolidation of Geotechnical Engineering I

1 Answer

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Best answer
The correct choice is (c) logarithm of time

The best I can explain: It is often assumed that the secondary compression proceeds linearly with the logarithm of time. It appears as a straight line in the graph in the plot of voids ratio as a function of logarithm of time.

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