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Soil Compaction Techniques

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Sheepsfoot Rollers (Padfoot Rollers)

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Designed with protruding 'feet,' these rollers focus pressure on small areas. Effective for compacting cohesive soils with high moisture content.

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Dynamic Compaction

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A heavy weight is dropped on the ground from a significant height, used for deep compaction of loose granular soils and stabilization of fill material.

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Static Rollers

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Static rollers compress soil through their weight. Ideal for fine-grained soils like clays and silts, which require long-term pressure for compaction.

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Pneumatic Rollers (Rubber-Tired Rollers)

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Pneumatic rollers use a series of rubber tires to provide an even pressure across the soil. Great for sealing the surface and working on both cohesively and non-cohesive soils.

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Smooth Wheeled Rollers

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Utilizing smooth steel drums, these rollers rely purely on their weight. Best used for compacting crushed rock or gravel.

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Tamping Rollers

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Tamping rollers have rectangular shaped protrusions on the roller drum, providing a kneading action ideal for silty soils.

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Grid Rollers

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Grid rollers have a cylindrical surface made of a grid of steel bars, providing a kneading action and high contact pressure, predominantly used for well-graded soils with cobbles or larger particle sizes.

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Vibratory Rollers

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Vibratory rollers use dynamic forces in addition to weight. Best suited for sands and gravels because vibrations reduce internal friction.

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