Ammonia Tank Insulation Repair, Australia, Moura for Dyno Nobel Client: Bilfinger & Berger, Australia Project Specification: HAITEK: Support Rings, Client: Wall Insulation
One Ammonia
Tank, 2000 m³, erected in 1999 with external insulation was inspected in 2008.
The bottom insulation, especially the two support rings constructed from light
concrete where completely destroyed and the wall insulation made form PU-foam
was completely wetted by water.
HAITEK supplied the repair procedure as well as the support ring material and
supervision during repair.
The support rings between concrete foundation and outer tank bottom have been
removed and replaced by new support rings. The tank was temporarily lifted for
installation.
The wall insulation was completely removed and replaced by Foamglas insulation.
The concrete foundation was modified from octagonal to round design.
Corrugated cladding was
installed as mechanical protection.
