Special structures in aluminium alloy
Aluminium is one of the most widespread elements on earth, second only to oxygen and silicon.
It takes its name from Alum (in Latin Alumen), double sulphate of aluminium and potassium has been used since Roman times as a mordant.
As a result of its abundance, since the last century it has been possible to produce large quantities of this substance at very affordable prices.
The metal is not used in its pure state but in combination with its alloys.
Its many properties – low specific weight, optimum corrosion resistance, optimum mechanical strength and high energy efficiency - led to it being used immediately as a primary material in the aeronautic and then the construction industries.
Aluminium is an environment-friendly material, it is recyclable and reversible.
Its natural protection against corrosion means that environment-damaging and polluting coating processes are not required. Moreover, it has excellent cryogenic properties and does not become brittle at low temperatures.
Its light weight (specific weight equal to one third that of steel) means that it can be used for almost complete prefabrication techniques.
Thus, it allows for rapid construction processes and greater safety on the work site.
It has many applications in structural engineering; aluminium alloys, in particular, are used for structures requiring a high strength/weight ratio such as large size roofs (airport hangar, stadium roof, industrial plant roofing, etc.).
Its high corrosion resistance makes it particularly suitable for use in extremely aggressive environments.