Types of Rollers Used for Compaction Work

Road Construction

Rollers are essential construction equipment utilised for the compaction of gravel, soil, crushed stone layers, sand and many other construction products.

The functionality of a roller compactor depends on vibration, kneading and impact loading. This article highlights three types of roller compactors that you may consider for your project.

Vibratory Roller

This is made up of vibrators and two smooth drums/wheels, which are located on the rear and front. The roller is designed such that it incorporates the entire area covered by the drum. The vibrators situated in the roller help by arranging the particles and removing air gaps that are present within the soil. The drums then exert pressure on the top layer of the earth, forcing it to compact.

Sheep Feet Roller

Also referred to as a tamping roller, this roller consists of a front steel drum, which is made of rectangular boots that are equally sized and arranged hexagonally. It achieves compaction through the application of static weight and continuous kneading of the specific layer. This makes the tamping roller best suited for use in silt or clay soil environments.

Pneumatic Tiered Roller

This type consists of some rubber tires that are located on the front and rear edge. The space created between the wheels makes 80% coverage area for the compaction wheels. The roller is suitable for use in non-cohesive and fine grain soils. Thus, it is used during construction of dams, highways and ordinary roads.

For maximum compaction, soil rollers are used along with other soil compaction equipment. These include rammers, vibro tampers, vibrating plate compactors and more. The type of soil-compacting equipment that you choose depends on whether you are dealing with light or heavy soil.