Tyre bales in construction

Around 450,000t tyres are scrapped in the UK each year. However, other than for use in engineering works, the EC Landfill Directive outlaws the disposal of whole tyres in landfill and will outlaw the disposal of shredded tyres to landfill by 2006. In addition there is no provision in the Directive to allow the use of tyre shred for engineering purposes in landfill. Clearly alternative means of disposal are required. Forms of potential recovery include use in civil engineering as well as energy recovery and retreading. The form in which the tyre material may be used in civil engineering varies from small crumb and shred particles up to whole tyres, depending upon the application and the technical requirements thereof. The fabrication of bales comprising 110 to 120 tyres is a relatively new means of tyre recovery. The bales measure approximately 1.3m by 1.5m by 0.8m and have a mass of around 890kg and a density of approximately 0.55Mg/m3. In addition to being considerably less dense than most conventional construction products, and therefore being highly suitable for construction over soft ground, the bales are highly permeable. This report presents a series of guides which detail possible approaches to the design and construction of a wide range of applications: road foundations over soft ground; slope failure remediation; lightweight embankment fill; gravity retaining walls; drainage layers; storm water management systems and rainwater soakaways; and environmental barriers. The application guides are supported by an extensive study of key properties and behaviours including dimensions, volume, mass, density, mechanical properties, hydraulic properties and behaviours in relation to durability, contamination potential, fire resistance, and human health and safety. Issues common to multiple applications are also presented, including the supply and construction of bales, their handling, alignment and layout, fill around the bales, maximum height of tyre bale fill, cover depth and cover stability, drainage, contamination, typical costs, and end of service life. The manufacturing process of tyre bales is described in some detail and, with other information, used as the basis for an engineering specification. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1846089344
• Authors:
  • WINTER, M G
  • WATTS, G A
  • JOHNSON, P E
• Publication Date: 2006-2

Language

• English

Media Info

• Pagination: 107p
• Serial:
  • PUBLISHED PROJECT REPORT PPR080
  • Publisher: TRL
  • ISSN: 0968-4093

Subject/Index Terms

• TRT Terms: Construction; Drainage; Embankments; Energy; Recycling; Retaining walls; Retreaded tires; Slope stability; Sustainable development; Tires
• Uncontrolled Terms: Use
• ITRD Terms: 3655: Construction; 2937: Drainage; 2801: Embankment; 213: Energy; 4573: Recycling (mater); 3359: Retaining wall; 1371: Retread tyre; 5783: Slope stability; 2427: Sustainability; 1381: Tyre; 9084: Use
• Subject Areas: Aviation; Bridges and other structures; Construction; Energy; Environment; Geotechnology; Hydraulics and Hydrology; Vehicles and Equipment; I26: Water Run-off - Freeze-thaw; I51: Earthworks and Soil Drainage; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01019814
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 1-84608-934-4
• Files: ITRD
• Created Date: Mar 9 2006 8:15AM