GATE Civil Engineering (CE) 2020 Shift 2 Solved Paper

Question : 18 of 65

Marks: +1, -0

A one-dimensional consolidation test is carried out on a standard

19 {mm}

thick clay sample.
The oedometer's deflection gauge indicates a reading of

2.1 {mm}

, just before removal of the load, without allowing any swelling. The void ratio is

0.62

at this stage. The initial void ratio (round off to two decimal places) of the standard specimen is

Solution:

\;{∆ e}/{1+e_{f}}=\;{∆ H}/{H_{f}}

\;{e_{1}-.62}/{I+.62}=\;{2.1}/{16.9}

e_{i}=.8213

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