Jan Bremert Technical Director Tba International GmbH & Co. KG Fabersweg Norderstedt Germany Phone.: Fax: Increasing Service-Life of Cut-and-Cover Tanks by

Cut-and Cover Tanks of the US Forces mostly built in the 1950s Single-walled Corrosion problems Deformations caused by ground water Structural damages Operational problems

Internal corrosion

Damaged bottom weld seam

Deformations in Tank Bottom

Advantages of renewing old tanks Purchase of new property is not necessary construction permit is not required no changes in infrastructure

Additional Advantages of Cut-and-Cover Tanks no fire protection facilities required secondary containment outside the tank is not required less safety distance between the tanks

Leak Protection Lining Primary skin Interstitial space Secondary skin Structural tank

Option 1 Single-skin Lining Application on tank bottom and wall guarantees the tightness of the tank corrosion protection is included Used if leak monitoring is not required

Option 2 System is permanently monitored by leak detector device Highest level of safety and environmental protection Meets all European government regulations Is recommended by NATO and USAFE Has an Equipment Approval from Florida DEP Double-skin Lining

Pore Testing High Voltage Pore Test 1. Sealing with polyester resin High Voltage Pore Test 2. Sealing with polyester resin High Voltage Pore Test

Tank Renovation at Tank Farm Vidin, Bulgaria Main problems: Pit corrosion in the tank bottom Single-skin bottom Internal support construction for center column

Flexible Manufacturing Integration of pipes

Flexible Manufacturing Integration of columns

Solution for special Constructions Integration of steel constructions on tank bottom

Tank Renovation on US Air Base Incirlik, Turkey Main problems: Heavy Corrosion in the tank wall Pit corrosion in the tank bottom Corrosion at the tank roof Tank bottom without slope to the pump sump

US Air Base Incirlik, Tank 3

Steel fibre concrete at tank bottom

US Air Base Incirlik, Tank 3 Shotcrete application at tank wall

US Air Base Incirlik, Tank 3 Concrete wall and coating at tank roof and columns

US Air Base Incirlik, Tank 3 tba leak protection lining

Tank Reconstruction New Tank Construction cost: $ 4.5 million Restorated Tank Construction cost: $ 1.5 million

Tank Renovation in Arahal, Spain Main problems: Deformations in the tank bottom Pit corrosion in the tank bottom Cracks in the welding seams Heavy corrosion at the tank roof Tank bottom without slope to the pump sump

New concrete bottom with leak protection lining Arahal Tank 206

Arahal Tank 208 Just using the existing manholes No additional openings in the tank necessary

Arahal Tank 206 Coating of Tank Roof and Columns

Final conductive Coating on Tank Bottom and Wall (if required) Arahal Tank 206

tba Leak Protection Lining Reliable system System with low operation costs Used for more than 40 years in storage tanks acc. to standard design US Air Forces Europe No corrosion problems Long service life

Restoration of cut and cover tanks with Leak Protection Lining = An easy and cost-saving Way

Tank retrofitting and reconstruction >>> There is always a solution <<<