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Family outside with dog playing Frisby.


Active Zone

The region of soil near the top where the water content consistently varies because of precipitation. Soil movement, shrinking and swelling, is most common in this layer.


A mixture of sand, rock, and crushed stone that improves the structural performance of concrete.

Anchor Pier

A pier that is connected to a structure to provide support and lift.


A concrete slab that is often at an entrance (to driveways/properties) for vehicles.