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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 more than 20 different countries, we’ve seen every construction scenario out there.

 

424mm
784mm
1092mm
1X 2X 3X

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.

Material Specifications & Testing

Deck: fiberglass reinforced, chemically-coupled, impact modified polypropylene.
Post and base: homopolymer polypropylene.

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.

  • Curb setbacks
  • Lateral loading
  • Dynamic loading
  • Geogrids & geotextiles
  • Drainage & water issues
  • Repairs & maintenance
  • Utilities

Loading & Engineering

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).

 

  • UK
BS EN 1991-1-1:2002

– 11,500 kg maximum per axle

– 5,750 kg maximum per wheel

– Tyre contact surface area is 200 x 200 mm

ULIMATE WHEEL LOAD BY STANDARD PAVEMENT TYPE

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 2 Engineering Report and Testing Conclusions.

Silva Cell System Type Pavers
8 cm pavers
2.5 cm sand base
30 cm of aggregate
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
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
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
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.

Getting Started

DESIGNERS
CONTRACTORS
ENGINEERS

Interested in a DeepRoot product? Get a quote today.

Request a Quote [email protected]

Tel: (+44) 020 3848 4230
Fax: (+44) 020 7969 2800


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