The construction of the Alouette complex involved the following:
- dust extraction and smoke control facilities;
- alumina reclamation and distribution silos;
- paste plant;
- anode sealing;
- treatment of red mud (residues from the extraction process);
- passageways between the different sectors;
- administration building with adjacent sub-station;
- building housing the plant's compressors (foundation and building envelope);
- ladle cleaning and coating building;
- electricity substation for the building housing the rectifiers and service racks that supply the entire complex and especially the potrooms.
Pomerleau was mandated to perform the bulk of the civil engineering work for the construction of this new plant.
Prior to starting construction, 2 million m3 of rock had to be blasted out to prepare the 3.23 km2 site.
Due to the extremely tight schedule, excellent coordination was needed among all the stakeholders, i.e., the contractors, subcontractors and equipment suppliers.
Pomerleau built:
- the foundations for the electrolysis smoke emissions treatment facility;
- the foundations for the fluoridated products storage facility;
- the foundations for the 4 alumina reclamation and distribution silos;
- the foundations for the paste plants, anode cooling, anode sealing, bauxite and electrolytic baths sectors and the passageways;
- the foundations for the shops, maintenance and offices in the "Carbon" sector;
- the foundations for the high voltage substation (161 kV) and service racks;
- compressor and electricity rooms;
- in reinforced concrete, the building in which the cleaning and coating of the ladles takes place.