Backfilling is an important part of the construction process. Backfilling happens after excavation, when the soil is compacted back into the trench or foundation. It is used to help protect foundations, roadways, walkways and other structures by using a mixture of soil, rocks, and stones.

What is the purpose of backfilling?

Backfilling is the process of reusing or replacing the soil that is removed during the excavation of foundations, ground bearing slabs or other groundworks to support and strengthen a structure. It protects foundations and forms part of the substructure of slabs, roadways, walkways and other groundwork elements.

Why is it excavation and backfilling is important?

Earthwork in excavation and backfilling of soil upto required depth is required for construction of foundation and trenches. ... Correct measurement of excavation and backfilling is required because excavation cost is major part of the foundation construction.