Client: XXXXX Hospital
Project Brief: The Internal Relining of 2 No. Concrete Potable Water Retaining Structures
System Specification: Solvent Free Polyurethane
Completion Date: 17th April 2009
COVAC Contract Ref: 833
2 No. concrete, potable, water retaining structures located externally at XXXXX Hospital and sized at approximately 8.8m x 7m x 3.8m.
The external of the structure.
The poor condition of the internal surfaces of the structure before relining.
The existing cementitious lining system could be removed easily (with a finger nail) to reveal the original eroding concrete.
The non (WRAS/DWI) approved bitumen which had been painted on the underside of the tank roof of each structure.
Access to the tanks.
The internal surfaces of the tanks having been drained of water, but prior to any work commencing.
The internal substrate during preparation by our COVAC operatives, thus raising a suitable surface profile for the adherence of the coating system.
Blow holes exposed within the concrete, clearly evident.
The DWI Approved Cementitious Polymer Modified, Screed and Pore Filler being applied to the concrete surface which was allowed to cure and dry completely for the specified period.
A comparison between the prepared concrete and the application of the DWI Approved Cementitous, Polymer Modified, Screed and Pore Filler.
The DWI Approved, Cementitious, Polymer Modified, Screed and Pore Filler having been fully applied to the concrete internal surfaces.
The tank receives an application of clear sealant.
All joints, seams and intricate areas were initially ‘stripe coated’. These photographs show the substrates during the1st full coat of Solvent Free Polyurethane.
All intricate areas were again ‘stripe coated’ for a second time, followed by the final application of Solvent Free Polyurethane.
Call us today find out why you should use our alternative to water tank replacement on: 0800 772 3367.