CASE STUDY

General fill using pfa for the A45 Packington Flyover

Projects
Bridges
Pavements - Roads, Car Parks, etc.

Applications
General granular fill

Products
Class 1C Coarse Granular Material

Materials
Pulverized-fuel ash

Information date
February to March 2002

Region
West Midlands
Background

Approximately 100,000 tonnes of pfa were used to raise the ground level of the site to accommodate a new flyover and road construction. The large quantities of pfa could be obtained economically and was preferred because of its low density and consistency. It also allowed the level of the site to be raised in only six weeks. A full environmental assessment of the material demonstrated it was appropriate for use in the location. The case study contains details of the environmental performance of the material as well as details of the construction methods and the relevant Highways Agency Specification.

Further details are given in the downloadable document and further information about pfa can be found in the datasheets at www.ukqaa.org.uk, using the Remote file link below.


Specification

Pulverized-fuel ash a permitted constituent for Class 1C Coarse granular material under the current Specification for Highway Works.

Contact details

Client: 
Highways Agency
Contractor: 
Wrekin Construction
Supplier: 
Ironbridge power station
Reference site: 


revised: 19 Mar 2003

Important warning

The information set out above is only concerned with the technical aspects of construction and is of a general nature only and not intended to be relied upon in specific cases.

It is derived from currently available UK Standards and Specifications applicable at the time of writing. Reference should be made to the relevant Standards and Specifications applicable at the time of writing and you should seek and rely upon expert professional advice on specific issues.

The information does not take account of environmental issues which you should discuss as a matter of routine with the regulatory authorities (the Environment Agency in England and Wales, the Scottish Environment Protection Agency in Scotland and the Department of the Environment in Northern Ireland).

Consequently, the information is provided only on the condition that WRAP and their sub-contractors will not be liable for any loss, expense or damage arising from your use or application of such information. See clause 3 of our Terms and conditions.