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Summary
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PC 509 Rubber Acryl injection resin, ready to inject using the three-component stainless steel pump.
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Injecting PC 509 Rubber Acryl via the 10mm injection packers into the movement joint.
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Using the PC 509 Rubber Acryl injection resin, ASF Waterproofing got the job done quickly and efficiently.
At this new-build shopping centre in Shepherd’s Bush, the new underground car park was experiencing high levels of water ingress through two movement joints that had failed. The project team therefore engaged Newton Specialist Contractor ASF Waterproofing, specialists in injection resins and structural repair work, to provide a quick solution and fix the leaking joints.
The Solution
Following an initial investigation, the technical team from ASF decided to use the 5-part acrylic rubber sealing resin Newton 324-SR to seal the joint, as it reacts to form a very durable and flexible seal that exhibits exceptional adhesion, making it ideal for movement joints.
ASF began by drilling holes at angle into the concrete, and at regular intervals for the 10mm injection packers above the joints. The team then fitted injection packers to each hole and used foam backing rod to temporarily block the joint, preventing uncured resin from escaping during injection. They mixed the five components of PC 509 Rubber Acryl to create two solutions and adjusted the resin’s curing time by varying the quantity of initiator. Using a three-component stainless steel pump, they injected the resin through the packers and into the joint.
Finally, once the resin was cured and the joints were effectively sealed, ASF ground back the surface of the concrete to either side of the joints and applied Newton 106 FlexProof, a flexible liquid waterproofing material, to provide a final protective seal and finish the job.
The Result
With two leaking movement joints in a finished structure, the client required a swift resolution to get the area back into use quickly. With the benefit of Newton’s advanced resin and waterproofing products, ASF got to site and delivered the sealed joints within the client’s tight timeframe.
“One of the key contributors to the success of this project was the TRADECC PC 509 Rubber Acryl injection resin, which gave us the necessary control and flexibility when it comes to the reaction and curing times of the resin in order to create a good seal in the movement joints.
The staff at ASF Waterproofing have got decades of resin injection experience between us, so to be able to pair this experience and knowledge of site conditions with a good product that delivers on what it promises, gives us the ability to do an excellent job for the client.”
Shaun King - Director, ASF Waterproofing, Newton Specialist Contractor
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