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What is the importance of Gradation curve? Name the tests you would like to perform to...

    1. What is the importance of Gradation curve? Name the tests you would like to perform to get this curve?   
    1. What is the importance of determining water content in the laboratory? Give any two practical situations where it is useful.
Engineering   Civil-Engineering   
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Answer #1

Gradation curve used to classify the fine grained soils as gap graded, well graded and uniformly graded soils. Indirectly shear strength of soil depends on it.

Water content: water content plays a very crucial role in soil properties. Higher water content in soil causes failure of soil shear strength parameters. Lower water content increase the shear strength parameters.

In embankment formation, water content helps in achieving maximum dry density.

In agriculture field, based on the water content retention capacity which type of crop is suitable for a can be suggest to a farmers

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