Compact Borrow

Definition

Compact borrow is fill material acquired from excavation that has been compacted to achieve the desired density and stability.

Purpose

The purpose of compact borrow is to provide a stable and solid foundation for construction projects. By compacting the excavated material, it ensures that the fill is free of voids and has the necessary load-bearing capacity for structures built on top of it.

Examples of Use

• During road construction, compact borrow is used to build up the subgrade, ensuring a stable base for the pavement.
• In foundation work, compact borrow is used to fill and level areas where soil has been removed, providing a solid base for concrete footings and slabs.
• Landscaping projects use compact borrow to create level terraces and embankments that can support plantings and structures.

Related Terms

• Fill Material: Soil, sand, gravel, or other materials used to fill in excavated areas.
• Subgrade: The layer of soil prepared to support a structure or pavement system.
• Compaction Equipment: Machinery such as rollers, tampers, and vibratory plates used to compact soil.

Notes

Proper compaction of borrow material is crucial to prevent settlement and ensure the long-term stability of the construction project. Testing methods such as the Proctor test can determine the optimal moisture content and compaction level.