Method for production of a silo

A method for the production of a cylindrical silo or tank from an aluminum alloy, the silo or tank comprising a plurality of aluminum alloy rings joined with one another, each said ring having a number of ring segments, each ring segment having a recessed peripheral joining flange extending outwardly of the respective ring, each peripheral joining flange having a curved recessed flange portion and a pair of recessed transverse flange portions extending transversely of the respective ring wherein, when the ring segments and rings are assembled, the recessings of adjacent curved and adjacent transverse flange portions cooperate to provide outwardly facing channeling, the method comprising the elements of:

• a) assembling the ring segments to provide the rings by forming a mechanical joint between adjacent transverse flange portions of adjacent ring segments at a location inwardly of the channeling employing one or more mechanical joining elements;
• b) assembling the plurality of rings formed in element a) to provide the cylindrical tank or silo wall by forming a mechanical joint between the curved flange portions of adjacent ring segments at a location inwardly of the channeling employing one or more mechanical joining elements;
• and
• c) applying sealing mastic in the channeling to form a seal between the joined peripheral flanges outwardly of the mechanical joints formed in elements a) and b).