A laboratory compaction test was performed on a soil sample taken from a propose

Question

A laboratory compaction test was performed on a soil sample taken from a proposed cut area. The maximum dry unit weight and optimum moisture content were determined to be 129 lb/ft3 AND 19.9% respectively. Estimate the possible type (or classification) of a soil for this sample using the below Table 4-3. a. A-1-a b. A-2-4 c. A-4 d. A-5 e. A-7-6 A Sheep's Foot Roller is used in construction to: a. Break the soil to make the soil dense and compacted b. Loosen the soil to make the soil more loose and not compacted c. Compress the soil to make the soil more dense and compacted d. None of the above.

Explanation / Answer

14. Answer: C: A-4 Reasons: dryunit weight---> 95-130, optimum moisture content ---> 10-20 15. Answer:C compress the soil to make it more dense and compacted. reason: rollers are used to compact the soil by reducing the air and water content in it

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