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A recycled or secondary aggregate containing well-graded particles
Selected granular fills for use in embankments and as backfill to concrete structures
6N will have a wider grading envelope compared to a Type 1 and allows particles ranging between 0mm to 80mm
Recycled materials and IBAA are well suited to be used as a 6N, they both have properties that mean they have a high angle of internal friction which is a test requirement for this material
Also known as granular fill material, or back fill to structures