Oswestry Water Treatment Works – Protection Against Attack
Location:
Shropshire, England
Country:
United Kingdom
Project Type:
Water Infrastructure | Civil / Infrastructure | Waterproofing
Project Scale:
5,001 – 10,000 m²
Adding Life to Concrete – How MARKHAM applied hydrogel waterproofing systems to multiple concrete structures at Oswestry Water Treatment Works in Shropshire UK.
OBJECTIVE
MARKHAM were tasked with providing a waterproofing and durability enhancement system for the new concrete RGF and SUTW tanks at Oswestry Water Treatment Works, in Shropshire UK, near the Welsh border.
This work was to enhance the durability and increase the lifespan of these structures and, probably most importantly, protect the concrete against soft water attack which is a potential challenge affecting concrete structures in this area.
SOLUTION
The MARKHAM system put forward to achieve these goals was the spray application of AQURON 2000. This retro spray application provides a waterproofing solution that penetrates up to 150mm into the concrete, replacing the more traditional controlled permeability formliner (CPF) systems.
RESULTS
As a DWI Reg 21 approved product, suitable for use in locations used for the storage of potable water, AQURON 2000 was a very rapid and cost-effective solution for waterproofing the concrete structures at this water treatment works.
It not only removed a significant cost element of the materials for a CPF form liner solution, it also removed the labour time / cost requirement for the main contractor, assisting them to keep ahead of their construction program.
Instead of densifying only the top 3-5mm of the concrete (as CPF form liner systems would) AQURON 2000 has this densification effect up to the 150mm depth into the concrete, that the product is proven to penetrate to.
With this depth of penetration, the AQURON 2000 is present within the matrix of the concrete for the lifespan of the concrete, making it a maintenance free solution for Oswestry Water Treatment Works that won’t require any further applications.
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Project Details – Oswestry Water Treatment Works | |
Description | Concrete water storage and filtration structures requiring protection to walls and floor slabs |
Area Treated | 8,415 m2 |
Age of Structure | New (2025) |
Requirements | • Waterproofing • Concrete sealing and anti-dust hardening • Zero maintenance • DWI REG-31 compliant |
Operation Downtime / Interruptions | All walls columns and floors were treated in situ after construction was completed, meaning that there was no interruption to the construction phases of the project. The construction program time was in fact reduced by the removal of the time that would have been taken in installing the CPF form liner. |
Application Method | • High Pressure Airless Spray Pumps – walls & columns • Medium Pressure Boom Sprayer – floor slabs |
Proposed Further Works | No further works required. |
OHS Requirements | AQURON is nil VOC. No product-specific PPE required. AQURON is DWI REG-31 Approved. |
*Cover image courtesy of Murphy Group: https://www.murphygroup.com/project/oswestry/
