The Silva Cell is a rigorously engineered product that has undergone extensive FEA, lab, and field testing. With more than 2,000 installations in more than 20 different countries, we’ve seen every construction scenario out there.
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The Silva Cell is a rigorously engineered product that has undergone extensive FEA, lab, and field testing. With more than 2,000 installations in over 20 different countries, we’ve seen every construction scenario out there.
Proof-load tested and FEA analysis completed at an independent facility. Download the detailed engineering report (USA, Canada, United Kingdom).
The Silva Cell is a product, but it is also a system. Each installation site has its own unique attributes – soil, tree species, hydrology, climate, and more – that influence how it is incorporated and how it will perform. From early on in the design phases, every component of the site should be considered thoughtfully within the context of this system
For engineers who want to begin using this system, visit our Getting Started section. Our team of technical experts is available to provide assistance throughout this process.
Information on the following is available by request. Please contact us for details.
Independent lab testing and engineering analysis shows that Silva Cell 2, when installed per manufacturer’s specifications, meets or exceeds most loading requirements and safety factor, including AASHTO H/HS-20 (US), BS EN 1991-1-1:2002 (UK) and standards for tire contact surface area equal to 250 mm x 600 mm (Canada).
– 11,500 kg maximum per axle
– 5,750 kg maximum per wheel
– Tyre contact surface area is 200 x 200 mm
The table below provides the maximum load that can be on any single wheel (tyre), or per axle, for a given pavement section,
assuming tyres have a contact area equal to 200 mm x 200 mm as prescribed in the BS EN 1991-1-1:2002 including the UK annex,
category G (<160 kN gross vehicle weight, on 2 axles). For more details, including information about lateral loading, please refer to the
| Silva Cell System Type | Pavers | |
| 8 cm pavers 2.5 cm sand base 30 cm of aggregate |
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| Wheel | Axle | |
| 1X | 121 kN | 242 kN |
| 12,338 kg | 24,676 kg | |
| 2X | 133 kN | 266 kN |
| 13,562 kg | 27,124 kg | |
| 3X | 113 kN | 226 kN |
| 11,523 kg | 23,046 kg | |
| Silva Cell System Type | Asphalt | |
| 10 cm of asphalt 30 cm of aggregate |
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| Wheel | Axle | |
| 1X | 198 kN | 396 kN |
| 20,190 kg | 40,380 kg | |
| 2X | 218 kN | 436 kN |
| 22,229 kg | 44,458 kg | |
| 3X | 185 kN | 370 kN |
| 18,864 kg | 37,728 kg | |
| Silva Cell System Type | Concrete | |
| 10 cm of asphalt 10 cm of aggregate |
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| Wheel | Axle | |
| 1X | 132 kN | 264 kN |
| 13,460 kg | 26,920 kg | |
| 2X | 145 kN | 290 kN |
| 14,786 kg | 29,572 kg | |
| 3X | 123 kN | 246 kN |
| 12,542 kg | 25,084 kg | |
| Silva Cell System Type | Pavers with Concrete | |
| 6 cm pavers 12.7 cm concrete |
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| Wheel | Axle | |
| 1X | 150 kN | 300 kN |
| 15,296 kg | 10,592 kg | |
| 2X | 165 kN | 330 kN |
| 16,825 kg | 33,650 kg | |
| 3X | 140 kN | 280 kN |
| 14,276 kg | 28,552 kg | |
Loading capacity can be adjusted based on section profile changes; the typical applications shown in the table above are the most commonly used. For more details, including information about lateral loading, please refer to the Silva Cell 2 Engineering Report and Testing Conclusions. For custom details and a review of your site-specific loading requirements, please contact DeepRoot.
Enhancing the Built Environment
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Tel: (+44) 020 3848 4230
Fax: (+44) 020 7969 2800
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