Sports Field Drainage Systems

In environments where water quality and distribution are paramount, our first solution area focuses on efficient water filtration. The performance of drainage systems can be severely compromised by persistent issues such as sediment buildup and clogging. ECA® – Expanded Clay Aggregate offers a highly porous structure that acts as an excellent filtration medium.

When water flows through ECA®, its unique structure traps debris while allowing clean water to pass, thereby preserving the integrity of the underlying drainage system. This results in reduced maintenance intervals and prolonged service life. For instance, its high specific surface area a measure of available surface per unit mass enhances its filtration capacity, ensuring that even fine particulates are effectively removed.

High specific surface area – The extensive surface available in a material for chemical or physical interactions.

Its chemical stability and non-reactivity further ensure that no additional contaminants are introduced into the water supply. With these properties, ECA® stands as an indispensable component in constructing a resilient and efficient water filtration layer for sports fields drainage.

• Silica (SiO₂) at 60–63% – The key component responsible for its structural stability and non-reactivity.
  
• Alumina (Al₂O₃) at 10–20% – Contributing to its thermal stability and chemical inertness.
  
• Iron Oxide (Fe₂O₃) at approximately 12% – Enhancing the material’s durability under pressure.
  
• Magnesium Oxide (MgO), Calcium Oxide (CaO), Sodium Oxide (Na₂O), and Potassium Oxide (K₂O) – Each element plays a role in ensuring the material remains non-flammable and resistant to degradation.
  

The combination of these components creates a material that is highly resistant to chemical leaching, UV radiation, and extreme environmental conditions. This remarkable resistance to chemical degradation ensures that sports fields remain safe and free from contamination over prolonged periods.

• Compressive strength ranging from 0.6 to 3.0 N/mm² – This indicates its ability to withstand heavy loads without deforming.
  
• Dry thermal conductivity between 0.09 to 0.10 W/mK – Ensuring effective insulation and temperature regulation.
  
• Water absorption between 18–23% – This level of porosity is optimal for balancing water retention with rapid drainage.
  

Moreover, its tensile and shear strengths, along with excellent impact and abrasion resistance, mean that ECA® can handle the rigors of sports field use while maintaining its integrity. These mechanical properties are integral to its role in forming both filtration layers and drainage support structures.

Sports fields drainage often struggle with sediment buildup that can clog drainage systems. Traditional materials fall short of preventing these recurring problems. By incorporating ECA® as the key filtration layer, facilities achieve an uninterrupted water flow that preserves the quality and efficiency of the drainage system. The porous structure of ECA® not only filters out contaminants but also enables easy cleaning and reduced maintenance downtime. This innovation translates to enhanced playability and safety.