A6195 Broomhill Roundabouts, Wombwell, Barnsley, South YorkshireDownload Case Study
Widening of 4 Roundabouts on the A6195 and increasing the approach carriageways from 1 lane to 2 lanes in order to improve traffic flow.
40,000 tonnes SHW Series 600 6N.
Barnsley Metropolitan Borough Council.
Road construction included the use of Incinerator Bottom Ash Aggregate (IBAA) 6N granular material, placed at up to 800mm.
IBAA is an extremely cost-effective material when compared to Primary Aggregates and BP UK is working towards a verified Carbon Footprint. There are also advantages logistically when using IBAA due to the low density of the material allowing for fewer vehicle movements as this gives volumetric advantages over primary materials.
The extraction of primary aggregates for construction and transport to construction sites places enormous pressure on the environment. Mineral mining accounts for 2.8% of the global greenhouse gas emissions. The use of manufactured aggregates from IBA prevents landfilling, mining of virgin raw materials and contributes to the circular economy.