Dufaylite ‘Clayboard’
Void formation system
‘’Clayboard’ is a unique, environmentally friendly void former and foundation stabiliser developed by Dufaylite. Clayboard is a biodegradable honeycomb core set between lightweight polypropylene facings.
When dry, ‘Clayboard’ is strong enough to support the weight of wet concrete and steel reinforcement.
Water is introduced to the ‘Clayboard’ core once the concrete is set, degrading the ‘Clayboard’ honeycomb centre which will ultimately lead to the creation of a void. This space will accomodate clay expansion without exerting undue pressure on the structure below.
The resulting void continues to accomodate natural soil shrinkage and expansion.’
| Material/s: | paper |
| Environmental statement: | no |
| BRE Ecopoints: | unrated |
| Green Guide rating: | unrated |
| Environmental certification: | none |
| 3rd party accreditation: | BBA cert 98/3528 |
| 3rd party product endorsement: | none |
| Quality certification: | none |
| Reusability / Recyclability: | recyclable |
| Recycled content to ISO 14021: | 100% paper |
| Life expectancy | unknown |
| Substitute for or new materials / method: |
virgin material |
| Downloads: | Product brochure |
| Codes of Practice: | |
| Workmanship Work Section: | |
| Country/s of manufacture: | UK |
| UK distribution location: | Cambridgeshire |
| Alternative products: | Void formers |
| Further information: | |
| Information last updated: | Tuesday 29th, April 2008 |
| Manufacturer's evidence rating:* |  |
| Manufacturer: | Dufaylite Developments Ltd |
| Address: | Cromwell Road, St. Neots, Cambridgeshire PE19 1QW |
| Telephone: | 01480 215000 |
| Fax: | 01480 405526 |
| Email: | enquiries@dufaylite.com |
| Website: | www.dufaylite.com/clayboard/ |
| Supply chain availability: | Manufacturer |
| Supplier: | Dufaylite |
| Telephone: | 01480 215000 |
| Email: | 01480 215000 |
| Website: | http://www.dufaylite.com |
The product has been selected on the above average performance in the following areas:
| - | Abiotic depletion | - | Acidification |
| - | Global warming | - | Eutrophication |
| - | Ozone layer deplection |  |
Solid Waste |
| - | Human toxicity | - | Radioactivity |
| - | Fresh water aquatic ecotoxicity | - | Minerals extraction |
| - | Terrestial exotoxicity | - | Water extraction |
| - | Photochemical oxidation |
*Note:
Manufacturer's evidence rating
* One star rating: The product has been included based on an assessment of the manufacturer's own product information.
*** Three star rating: The product has been included on the basis of a third party, independent, Life Cycle Analysis (BRE Ecoprofile or similar).
