Tyre bales at Pevensey

It will be obvious to our Wastersblog readers that the disposal of vehicle tyres is a real headache, for the waste management industry, and as motorists we are all feeling the pinch from rapidly rising tyre disposal costs.

Certainly, the last time I bought a new tyre, the garage added several pounds to my bill for disposing of the old one.

However, a number of landfill operators have been using tyres for leachate drainage within landfills for some years as an engineering material, and they have found that using tyres as drainage layers in landfills provides adequate flow capabilities, at close to zero cost for their leachate drainage. However, manhandling individual tyres to stack them efficiently on site is a tedious, dirty, and time consuming task, and this fact alone has probably done a great deal to limit tyre use uptake. Whole and granulated tyres have been used for this purpose.

That was for whole tyres, as far as we are aware, just about the only use available in landfills.

Since WRAP published a British Standards Institution (BSI) and has produced a Publicly Available Specification, PAS 108, in collaboration with the tyres reprocessing industry, a whole new range of uses has opened up, from baled tyres.

Almost overnight, baled tyres have become an engineering product with standard bale sizes and shapes, and most important of all, clear design strength data.

Designers and purchasers can now use the structural and drainage characteristics provided from the research done for the PAS, and incorporate tyre bales into designs, just like any other proprietary geo-synthetic material.

In short, providing a specification for producing compact tyre bales of a consistent and verifiable quality and dimension, opens up a new and potentially huge market for waste tyres.

The method re-uses tyres, reducing the demand for the primary aggregate materials used in the past.

The PAS 108 specification can be adopted by suppliers for producing tyre bales such that potential customers will be assured that they are procuring a construction material of consistent and verifiable quality.

Furthermore, the core of this document addresses the production, handling, storage, transport and placement of standardized tyre bales, the dimensions and properties of which are standardised and described in this PAS. So go find out more at the Landfill Site Tyre Bales page here, and you will also find the contact details for one of the first suppliers.

Companies handling construction waste in Wales can now sign up to a standard recognising that they are disposing of it correctly and in line with their Duty of Care.

Launched by Constructing Excellence in Wales (CEW) and Jane Davidson, Minister for Environment, Sustainability and Housing, the ‘Green Compass’ standard is the first of several planned initiatives intended to ensure construction and demolition waste is being disposed of safely and environmentally.

In 2005, one third of waste sent to licensed waste management sites in Wales was from the construction sector, with over half ending up in landfill. The standard – which was developed in cooperation with the industry – is part of several initiatives being developed to potentially divert “significant quantities” of construction waste away from landfill.

Speaking at the launch of the standard on Monday (September 29), Ms Davidson said: “I have awarded £1.5 million of funding to CEW for three years to help the industry reduce and recycle more of its waste. CEW is now turning ideas into action in the form of the Construction Waste Programme.”

“The construction industry has been on board every step of the way to develop this programme and suggest ways of improving the current situation. Green Compass is a result of one of these ideas; I believe it will make a big impact on diverting significant quantities of waste from landfill and also help minimise our carbon footprint,” she added.

CEW has commissioned the British Standards Institution (BSI) to develop the ‘Green Compass’ standard as a Publicly Available Specification (PAS 402), with companies invited to sign up and demonstrate sound waste management for potential customers.

The scheme is currently being developed further through a pilot scheme with ten companies testing the standard in a trial which will run until July 2009. A public consultation will also be held to seek a wider selection of views from stakeholders on the intent of the scheme.

Paul Jennings, CEW’s construction waste programme director, said: “We have a huge task to reach out, educate and work with the entire construction waste industry in Wales and in time we will address each aspect of the construction process, but the best starting point is the actual handling of waste itself.” More at Let’sRecycle.

More about construction waste and Site Waste Management Plans.