_{Our team undertook waterproofing for a newly constructed reinforced concrete swimming pool in a top-tier luxury residential development in Dubai Marina. To ensure long-term water retention and structural protection, our team implemented a layered system combining Crystalline Injection Technology, Cementitious Waterproofing, and a GRP (Glass Reinforced Plastic) Lining. This combination of systems provided structural crack sealing, surface integrity, and a durable topcoat against hydrostatic pressure.}

Site Condition and Project Considerations

• Shrinkage cracks and cold joints were observed across the pool shell

• The client required absolute waterproofing before finishing and tiling

• Continuous exposure to water required a system with flexibility, chemical resistance, and long-term durability.

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Solution Implementation

‍1. Hydraulic Resin & Crystalline Injections – Internal Crack Sealing

• Low-pressure injection of hydrophilic crystalline slurry into cracks and cold joints.

• Reacted with moisture to form water-blocking crystals, sealing internal micro-pathways permanently.

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2. Cementitious Waterproofing – Base Layer

• Applied a two-component flexible cementitious waterproofing system over the full surface.

• Provided substrate sealing, corrosion protection for steel, and formed a bond coat for top layers.

• Fillet coves were applied at wall-floor joints to absorb stress and prevent future cracking.

3. GRP Lining System – Final Protective Layer

• Installed a multi-layer Glass Reinforced Plastic (GRP) lining to serve as the primary barrier.

• Layers of polyester resin and fiberglass matting were applied in situ to form a high-strength, chemically resistant coating.

• GRP system was custom-shaped to match curves, joints, and details, ensuring seamless coverage and long-term resistance to chlorinated water.

4. Hydrophilic Waterstops

• Installed at all construction joints to provide active protection against water ingress and structural movement.

5. Hydrostatic Testing

• A 72-hour water retention test confirmed complete waterproofing performance before tiling works were commenced.

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Summary and Outcome‍

Systems Applied: Hydraulic Resin & Crystalline Injections; Flexible Cementitious Waterproofing; GRP (Glass Reinforced Plastic) Lining System, and Hydrophilic Waterstops.

The waterproofing system achieved full water retention with no seepage during testing. The integrated solution of internal sealing, cementitious coating, and GRP lining ensured robust protection for long-term use in a high-immersion environment.