Inert Waste
Inert waste - Waste that does not undergo any significant physical, chemical or biological transformations. Inert waste will not dissolve, burn or otherwise physically or chemically react, biodegrade or adversely affect other matter with which it comes into contact in a way likely to give rise to environmental pollution or harm human health.
Subsoil - Directly beneath the surface soil (topsoil) lies a layer known as Subsoil.
Brick - Consists of solid blocks used in the construction industry for walls, pathways and driveways.
Topsoil - Consists of the upper layer of soil that contains most root material, anthing above soil level is considered.
Rubble - Consists of waste or rough fragments of stone, brick, concrete, etc., especially as the debris from the demolition of buildings.
Concrete - Consists of building materials made from a mixture of broken stone or gravel, sand, cement and is often found in pathways, driveways and other hard standing areas.