Page 87 - Industrial Plant 2020

Columbus software; The application of Chartek 7 took place according
• assembly of beams and columns according to to the following cycle:
workshop drawings; • Dusting of surfaces;
• final welding of the brands assembled • Masking of all surfaces not affected by
according to the welding planes; Fireproofing and bolting;
• CND checks on welds; • Hand application of Chartek 7 layers until
• sandblasting shots; design thicknesses are reached;
• application of protective coatings with booth- • Application of reinforcement mesh to about
furnace painting plant, as well as temperature half the thickness;
and humidity detection plant and air emissions • Rolling and smoothing of surfaces;
filtration plant. • Application of a polyurethane paint;

For the shelters and secondary structures that did The Chartek 7 has been sprayed on the surfaces
not require fireproofing treatment, a painting cycle with biphasic Covercat pumps by means of flexible
was applied directly at the Monsud plant in Tufo, hoses for successive coats, until the final thickness
which is equipped with sandblasting machine and is reached. Each coat was applied when the
painting cabin. previous one was not yet completely dry. Measuring
The steel structures, according to ISO 12944-3, devices were used to ensure that the different
were constructed in such a way as to facilitate their covering layers were of constant thickness.
preparation for the various surface treatments.
The surfaces were washed with pressurized water The Shelter SHL300/301 were designed to isolate
to remove any residues and impurities, and then the high noise emitted by the gas compression
cleaned with a specific solvent before sanding. system.
After sandblasting with angular metal grit, an epoxy Sheds with acoustic insulation through sandwich-
primer was first applied, then an intermediate and panels sound type have been realized.
then a polyurethane finish. Sandwich acoustic panels with PWD-F and TW5-F
rock wool insulation, with sound-absorbing and
The pipe racks and process structures, beams and sound-insulating properties have been used both for
columns were treated with a fireproofing cycle the roof of the sheds and for the walls, made with
Fireproofing Jet Fire of 60 and 90 minutes. external support in galvanized steel sheet and with
The fire protection from JET FIRE has been realized micro-perforated internal support and insulating Figure 4 -
with intumescent treatment and certified in windows also made with the same type of acoustic Fireproofing treatment
accordance with ISO 22899 regulation. panels. The minimum acoustic performance required application at the
The project criteria were: was not less than Rw= 30 dB. Monsud S.p.A.plant in
Avellino
• Fire: Powered by hydrocarbons As part of the same project Monsud S.p.A. has
• Reference test: LLOYDS
• Fire protection criteria: jet fire 60/90 CCT
400°C

The fireproofing treatment of the structures -
“Fireproofing” - was carried out in the factory of
Monsud S.p.A. located in Avellino (Figure 4). The
fireproofing process covered about 15.000 square
meters of profiles, using the product CHARTEK 7,
biocomponent based on flexible intumescent
epoxy resins, fire retardant suitable for the
protection of steel structures and mainly used in
the oil & gas and petrochemical industry.
The entire phase of product application was carried
out in environments where the conditions for
treatment were restored and constantly kept under
control and recorded, such as:
• Air temperature ≥ 10°C
• Relative humidity ≤ 85%
• Surface temperature of steel ≥ 3°C higher
than the dew point of ambient air.

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