Case Studies


The UKQAA’s membership covers a wide range of businesses, from ash producers and hauliers. As a result, they have experience of using coal ash in a range of ways. Its part of our role to collect and share case study examples of coal ash in use in the UK, and you can access our latest case studies here.

It should be noted that the following case studies are for guidance purpose only and companies should undertake their own risk assessments and seek expert advice for their own specific projects.


Aarsleff Ground Engineering’s case studies comprising drilling & grouting work utilising PFA.

Gibside SEN School_ Gateshead

Kenton Bankfoot Phase 4

Leeds Logic Park

Shakespeare School_ Leeds


Case Study No. 1 – Llanelli: A case study of the use of PFA at the Millennium Llanelli Coastal Park project.
Case Study No. 2 – East Midlands Airport: Using PFA for airport paving
Case Study No. 3 – Mons Hill: Using PFA to grout limestone caverns
Case Study No. 4 – Ramsgate Harbour approach road: Use of GFA
Case Study No. 5 – A45 Packington Flyover: The use of PFA as fill material
Case Study No. 6 – Selby Bypass: PFA use for embankments
Case Study No. 7 – Small Grouting Contracts
Case Study No. 8 – Flixborough Composting Plant Soil Stabilisation
Case Study No. 9 – Use of PFA at Pride Park, Derby
Case Study No. 10 – Bilston Urban Village: PFA grouting contract
Case Study No. 11 – Northwich Mine Infill Project
Case Study No. 12 – Selby Bypass: PFA takes CBM1A sub-base to new levels
Case Study No. 13 – A52 Kingsley to Froghall Reconstruction: Use of GFA
Case Study No. 14 – Celtic Manor Ryder Cup 2010: Use of PFA as a fill material – An Update
Case Study No. 15 – Ratcliffe Power Station: The use of FABM
Case Study No. 16 – A421/M1: PFA as embankment fill
Case Study No. 17 – under preparation
Case Study No. 18 – A81 Gartmore: In-situ road recycling
Case Study No. 19 – Tilbury Power Station: Recovery and use of stockpiled ash
Case Study No. 20 – Swansea Transport Link: Use of PFA’s unique combination of benefits
HAUC Info Sheet 1
HAUC Info Sheet 2