M62 Smart Motorway Upgrade, Junction 33 to 34, Ferrybridge
September 2019
Overview
Upgrading the Central reservation Junction 33 to 34 on the M62 at Ferrybridge.
Construction
Phase 1 - 2000m trench x 3.5m x 500mm depth. 370mm of Type 1 underneath 130mm of Asphalt. Phase 1; 2km trench x 3.5m x 500mm depth. 370mm of Incinerator Bottom Ash Aggregate (IBAA) Type 1 subbase underneath 130mm of Asphalt. Phase 2; 1km construction, to take down existing barrier x 3.5m wide trench x 900mm depth excavation. Construction of Concrete V Channel by Sub Contractor. Infill of both sides of V Channel with IBAA Type 1 subbase and Concrete. Surfaced with Asphalt.
Benefit
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.
Sustainability
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.
