What is the purpose of conducting a Proctor test?

The Proctor test is primarily designed to determine the optimal moisture content at which a specified soil type will achieve its maximum dry density when compacted. This test plays a crucial role in construction and civil engineering, as understanding the relationship between moisture content and compaction helps ensure that soil is properly prepared for building foundations and other structures.

When soil is compacted at the optimum moisture content indicated by the Proctor test, it achieves its best density and strength, reducing the likelihood of settlement and other issues in future construction. Therefore, the purpose of conducting a Proctor test is integral to ensuring the stability and durability of soil under load, which is critical in engineering practices related to excavating, grading, and oil surfacing.