Laboratory analysis of slag

Bottom ash is a solid residue resulting from the combustion of materials and is composed of incombustible materials (e.g.: glass, metals, silica, alumina, limestone, lime and unburned materials…).

There are two types of bottom ash:

• the first is the residue of the incineration of coal, or coke, in industrial furnaces
• the second one comes from the incineration of household waste in non-hazardous waste incineration units (UIDND)

Bottom ash has certain advantages, notably its abundance and its excellent geotechnical characteristics. These characteristics make it a material that can be used for many construction applications.

Thus, it can be found in the form of solid breeze blocks of any size, load-bearing walls made of clinker concrete but also in road construction.