Darmowa wycena

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      Corrosion protection of steel structures of silos

      Corrosion protection of steel structures of silos together with supporting structures.


      Scope of work:

      • Abrasive blasting (sandblasting) to Sa2 degree ½ of steel structures above silos,
      • Hydrodynamic cleaning with a 500 bar washer of the galvanized steel structure of the silos,
      • Development of anti-corrosion protection technology,
      • Checking the tightness of welded joints of silos,
      • Painting the steel structure with two-component epoxy primers,
      • Painting the steel structure with two-component polyurethane topcoat paints,

      Value of the works: PLN 198,792.82

      Completion date: 30 days,
      Painting System: Hempel Paints (Poland) Sp. z o.o.

      Insulation of the elevator shaft h = 42m

      The climbing works include a full-scale finishing works of the elevator shaft including insulation of exterior walls with mineral wool with a density ≥ 100 kg/m3, implementation of structure and flashings.

      The technology of elevator shaft insulation:

      • Mapetherm Wool glue,
      • Mineral wool with the density of 100kg/m3,
      • Mapenet 150 netting,
      • Mapetherm Wool glue,
      • Siexcolor Tonachino SP 1,5mm kolor RAL 1015 Plasterwork,
      • Implementation of the attic style,
      • Implementation of roofing with flashing and window sills.

      Roof renovation covered with PVC membrane

      Emergency repair of roofing, together with an inventory of damage and elaboration a plan to repair the roof covered with PVC membrane.

      Scope of work:

      • Damage location
      • Leak repair
      • Replacing flashings,

      Roof covering with heat-sealing felt

      Roof covering with heat-sealing felt warming and associated works.

      Scope of work:

      • Increase firewalls
      • Reducing vents chimneys,
      • Partial dismantling the chimney with a height of 6m and bricklaying again
      • Styrofoam roof covering with laminated both of side
      • Roof covering with heat-sealing felt
      • Implementation of new flashings,
      • Replacing the gutter,
      • Replacement of lightning conductor,
      • Measurements lightning conductor

      Technical data:

      • Roof area: 376m2,
      • Pitch: about 10 *
      • Duration: 14 days

      Full-scale works associated with the renovation of the DN 1200 pipeline.

      Comprehensive work related with renovation of pipeline DN 1200 on crossing the river

      Scope of works includes:

      • Dismantling of damaged lagging,
      • Pipeline corrosion cleaning,
      • Double painting of the pipeline,
      • Pipeline insulation with 10cm thick mineral wool,
      • Installation of the 0.75 mm thick galvanized steel sheet on the insulation.
      • Cleaning of the surface of concrete supports,
      • Removing of defects in the supports and the bridgeheads,
      • Bonding of the layer of netting,
      • Applying the layer of plaster primer
      • Painting of the surface of the support structures
      • Dismantling of grating on the bridgeheads,
      • Fabrication and installation of new gratings with U-profile NP. 120mm and 30mm rebar,

      Participation of PROSPECT in the investment: 100%

      Lead time: 14 days

      Work value: 100.000 PLN

      Full-scale renovation of silos

      Full-scale renovation of silos, including replacement of steel structures and the testing of welds using magnetic-particle and bubble method.

      The scope of the renovation of silos included:

      • Dismantling of trapezoidal sheet metal claddings: 800m2,
      • Cleaning of the steel structure of the silo: 150m2,
      • Sandblasting of steel structure of the silos:150m2,
      • Painting of the steel structure of the silo (priming + topcoat): 150m2, (corrosion protection),
      • High pressure cleaning of the construction of silos: 1100m2,
      • Painting of the construction of silos (priming + topcoat): 1100m2,
      • Installation of trapezoidal steel claddings T-55 gr. 0,7 mm,
      • Installation of an illuminated logo on the facade of the building,
      • Installation of netting against birds: 490m2,
      • Measurement of the thickness of metal sheet seams of silos,
      • Quality test of the welds using vacuum and magnetic-particle method,
      • Elimination of leaks of welded joints.


      • Miechów (Małopolska Voivodeship),
      • Deadline: July 2012,
      • Lead time: 45 days,
      • Contract value: 364856,05 zł (gross)

      Description of the preparation grade of the surface:

      Gr 1 – manual and power tool cleaning

      Gr 2 – there are no oil, grease, dust, poorly adhering mill scale, rust, coating and deposit on the surface; surface exhibits a metallic luster.

      St 3 – requirements such as the ones for Gr 2, except that the surface should be cleaned, until the metallic luster becomes intensive(up from the metal substrate).

      A description of the painting materials:

      KOREPOX EH2350 is a two component paint, self priming, based on pure epoxy resin, forming a coating with an excellent resistance to sea water, oil, fuel and mechanical damage. It can be applied to both new steel and steel which is being renewed; it is only required to clean the loose rust and deposit; as a primer tolerating less prepared substrate. Cures at low temperatures, reduced up to -18 ° C and meets the requirements for High-Solid paints in the content of volatile organic compounds (VOCs).

      Product approved by: LLOYD’S REGISTER OF SHIPPING (LR) and GERMANISCHIER LLOYD (GL) as corrosion control coating. DET NORSKE VERITAS (DNV, CE Marking), LLOYD’S REGISTER OF SHIPPING (LR) and KOREAN REGISTER OF SHIPPING (KR) as fire-resistant coating, NEW CASTLE OCCUPATIONAL HEALTH AGENT (UK) as a paint suitable for contact with food in grain containers. MARTINEK in NORWEY as a coating for ballast tanks. Systems based on KOREPOX EH2350 paint are in full compliance with the requirements of NORSOK M-501, issue 4, for system No. 7.

      KORETHAN TOPCOAT UT6581 is a fast drying, two-component polyurethane topcoat, which has very good resistance to splashing and wetting by acids, bases, solvents, salts and water. It forms a coating resistant to external weather conditions and to color change.

      Full-scale silos renovation

      Climbing services associated with full-scale renovation of silos h=35

      Full-scale silos renovation included:

      • Removal of loose plaster of reinforced concrete structure
      • Removal of cracks in reinforced concrete,
      • Cleaning of corrosion of the reinforcement structure,
      • Painting of rebars with epoxy primers
      • Painting of rebars with polyurethane topcoats,
      • Repair of reinforced concrete structure in the PCC system,
      • Corrosion protection of support construction of silos,
      • Corrosion protection of hoppers structure
      • Removal of old trapezoidal sheet roofing
      • Corrosion protection of steel structure under the roof,
      • Installation of a new roofing with trapezoidal sheet,
      • Implementation of the new roofing with heat-weldable roofing membrane and flashings
      • Renovation of silos was completed with a faultless completion certificate and the quality of service has allowed for the continuation of cooperation in subsequent years.

      Reconstruction of the sluice Łabędy in Gliwice

      Implementation of the construction and finishing works including anticorrosion works during the reconstruction of the sluice Łabędy in Gliwice

      Land development

      • Renovation of an electric power transformation substation ,
      • Renovation of the technical building of the engine room GG mid-sluice,
      • Renovation of the technical building of the southern GG engine room
      • Renovation of the technical building of the northern GG engine room
      • Renovation and modernization of the main building (control room),

      Investor: State Treasury – Regional Water Management in Gliwice.

      Duration: 4 months from the date of signing of the contract,

      Investment value: about 437 799.1 pln

      Participation of PROSPECT GROUP LLC in the Investment: 100%