CASE STUDY IBA PROCESSING FACILITY External Slab Ilkestone, Derbyshire, United Kingdom Johnson Aggregates operate a number of recycling and processing facilities in the Midlands. This project involved producing a Synthetic Macro Fibre solution for a heavy duty external pavement specified to cope with heavy mobile plant operations, HGV Traffic and exposure to highly acidic incinerator bottom ash (IBA). Challenge The original concrete specification included 2 layers of A393 Mesh proposed by the Project Consulting Engineer. ADFIL were approached by a National Readymix Supplier to propose a Synthetic Macro Fibre alternative due to major concerns about spalling caused by steel corrosion. Incinerator bottom ash is highly acidic and prolonged exposure to contaminated rainwater

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