Delnote Constructions was involved with the concrete construction at the Olympic Dam for the Western Mining Corporation over the last two and a half years. The contract was initially for a period of three months and approximately $500,000. However the contract was substantially increased as work progressed and eventually totaled to $6.7 million dollars. Most of the contract was related to manual labour with some plant hire and sundry materials.

This project consisted of the construction of the following:

Amenity buildings and change rooms.
Warehouse and storerooms.
Desalination plant.
Oil and fuel storage.
Wheel wash plant.
Cable pits and paving.
Laboratories and testing facilities.
Winder building.
Large Retaining walls.
Slimes treatment plant.
Concrete sprayed walls.
Concrete shotcreting.
Concrete ducts, culverts.
Concrete pumping above and below ground for the railway system.

As you can see in the photo abovet, the area to be concreted was quite extensive and needed a high level of coordination and quality control. On the left of the picture are vertical retaining walls varying form heights of 2.5 meters to 3.5 meters and in thickness of 200mm to 600mm. On the right the sloping embankments to the tanks had to be formed, reinforced and sprayed with concrete to 200mm thick and 8 meters high. The finish to the concrete had to receive a special epoxy coating and therefore the quality of concrete finish had to be of a good standard.