Material Specification
1,200 tonnes of SHW Series 600 6N Fill.
800 tonnes of SHW Clause 803 Type 1 Subbase.

Overview
Road construction.

Client
Private works.

Delivery Partner
XCav8.

Construction
IBAA (Incinerator Bottom Ash Aggregate) 6N fill and IBAA Type 1 subbase was supplied from the BPUK Cornwall plant at St Dennis. These materials were used at varying depths across the site (no greater than 1 meter average depth) and compacted in 150mm layers.

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

Blue Phoenix now have a CPD, explaining the benefits of IBAA in greater detail, which can be found here.