Soil Mechanics and Foundation
Dispersed type of soil structure is an arrangement comprising particles having

face to face or parallel orientation
edge to face orientation
All of these
edge to edge orientation

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Soil Mechanics and Foundation
With the increase in the amount of compaction energy

both optimum water content and maximum dry density increase
optimum water content increases but maximum dry density decreases
optimum water content decreases but maximum dry density increases
both optimum water content and maximum dry density decrease[ES 93]

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