Which equipment is typically used for compacting soil?

The equipment typically used for compacting soil includes rollers and compactors, which are specifically designed to increase the density of soil by applying mechanical force. These machines help achieve the necessary compaction required to provide a stable foundation for roadways, structures, or any construction work that relies on a solid subgrade.

Rollers come in various types, such as vibratory rollers or pneumatic rollers, and are designed to crush and compact soil through weight and vibration. Compactors, which can be either hand-held or machine-operated, also utilize similar mechanisms to compress soil.

In contrast, excavators and bulldozers are primarily used for moving and leveling soil but do not have the specific design or capability to compact soil effectively. Dump trucks and mixers focus on transporting materials and mixing concrete, respectively, while crushers and screens are involved in processing materials for aggregate production rather than compacting soil. Therefore, rollers and compactors are the correct choice for soil compaction in highway construction.