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Case study

Public Utility Trench re-instatement applications

IBAA is an extremely cost effective and there are advantages logistically when using IBAA due to the low density of the material, meaning fewer vehicle movements when compared to Primary Aggregates. 

Installation of a new 33,000 volt underground electricity cables from Cherry Tree Grid Substation – Gale Street, Parsloes Park, Dagenham

EDF Energy Networks Ltd. Local Authority – London Borough Barking & Dagenham

Delivery Partner
Main Contractor – Carillion Utility Services Ltd. Sub-contractor – O J Smith Lighting Ltd

Material Requirements
1,600 tonne SHW Clause 803 Type 1

2,560 linear metres of 200mm diameter cables across 1,665 linear meters of carriageway within 1-2 metre deep 650mm width trench. Pipes layed and bedded in 300mm thick sand surround capped with 500-600mm thick layer of Type 1 IBAA with 100-285mm asphalt overlay. Modified HAUC Specification. IBAA had been chosen as a viable sustainable secondary aggregate, trench fill.

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