Concrete Waterproofing by Crystallization™

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February Newsletter

Engineering Resilience: Global Solutions for Critical Concrete Infrastructure: 

  • Suspension Bridge Infrastructure: Wuhan Yangluo Yangtze River Bridge 
  • Potable Water Infrastructure: Saint-Maurice Reservoir Expansion 
  • Technical Insight: Managing Waterproofing in Cold Weather Environments 
  • Wastewater Resilience: Poste de pompage Pintendre Lévis 
  • Corrosion Science: Understanding Microbial-Induced Corrosion (MIC) 
  • North America Project: Holland Township Community Pool – New Jersey, USA 
  • International Project: Xiangyang Sen De Run Su Ling Ting Residence – China 

Suspension Bridge Infrastructure: Wuhan Yangluo Yangtze River Bridge – China

As the world’s eighth-largest suspension bridge, this project faced significant challenges with groundwater penetration into the south anchor foundation. Due to the extreme depth and high hydrostatic pressure, Xypex was applied to the front and rear anchor chambers to successfully waterproof, protect, and enhance the long-term durability of this massive structure.

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Potable Water Infrastructure: Saint-Maurice Reservoir Expansion – Canada

To expand its potable water system, the Municipalité de Saint–Maurice constructed two new reservoir units. Engineers from Stantec specified Xypex Admix C–500,an NSF 61 approved product—to eliminate the need for traditional membranes, which are prone to degradation and detachment. By incorporating crystalline technology directly into the slab and walls, the project achieved a permanent, low–maintenance solution that protects drinking water quality and improves resistance to freeze–thaw cycles.

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Technical Insight: Managing Waterproofing in Cold Weather Environments

Cold temperatures can significantly impact the rate of cement hydration and crystalline development. This technical note explains that while chemical reactions slow down as temperatures drop, potentially appearing to stop near or below freezing, Xypex technology remains effective. Once temperatures rise, the waterproofing and crack-healing effects reactivate normally, ensuring no long-term negative impact on structural durability

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Wastewater Resilience: Poste de pompage Pintendre Lévis – Quebec, Canada

The new Pintendre Lévis lift pump station required robust protection against harsh sewage conditions and high levels of H2S. Xypex Bio-San was utilized as a cost-effective, maintenance-free alternative to membranes to combat microbial-induced corrosion (MIC). This dual-action admixture combines antimicrobial protection with crystalline technology, allowing the concrete to self-heal micro-cracks and resist high hydrostatic pressure in extreme environments. 

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Corrosion Science: Understanding Microbial-Induced Corrosion (MIC) in Concrete

Wastewater structures are uniquely vulnerable to MIC, where bacteria convert hydrogen sulfide gas into sulfuric acid, eating away at the concrete. This guide explains how Xypex Bio-San combines crystalline technology with high-intensity antimicrobial protection to stop MIC at the source. 

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Holland Township Community Pool – New Jersey, USA

The Holland Township Community Pool, a local fixture since the 1950s, faced severe concrete cracking that compromised its watertight integrity. To minimize downtime ahead of the pool season, contractors utilized a comprehensive repair system featuring Xypex Patch’n Plug, Concentrate, and Megamix II. This targeted restoration sealed critical leaks and allowed the facility to return to full operation just five days after repairs were completed.

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Xiangyang Sen De Run Su Ling Ting Residence – China

As a benchmark “Fourth-Generation” ecological residential project, this development features extensive sky gardens and vertical greening systems. To address the unique waterproofing challenges of high-altitude gardens and heavy soil backfilling, the project team implemented a composite system using Xypex Admix C-1000-NF and Concentrate. This solution provides a “one-time” permanent protection for the basement roof slabs and ecological courtyards, ensuring long-term structural durability for this 280,000 m² urban forest community

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