10/20 Gc85/20 (20mm Chip)

Product Description

Clean, single-graded 20 mm chip produced for bituminous mixtures to EN 13043. Grading 10/20 with fines category Gc85/20, suitable for use as the coarse aggregate in base and binder courses, thin surface systems requiring a 20 mm nominal size, and general hardcore where a uniform stone is preferred. Washed options available where low fines are required (e.g., drainage or resin-bound systems—confirm binder supplier spec). Typical uses Asphalt base & binder course mixes (EN 13043) Thin surface course systems requiring 20 mm nominal size General hardcore/top-up over compacted sub-base Decorative/top-dressing (washed grade) Drainage layers or trenches (specify washed/low-fines if required) Key properties Nominal size: 10–20 mm (single-size) Standard: EN 13043 (Aggregates for bituminous mixtures) Fines category: Gc85/20 Rock type: primary quarried (e.g., granite/limestone); PSV/AAV/ACV certificates available on request Supplied loose; washed/low-dust variants available Coverage guide (approx., loose bulk density ≈ 1.6 t/m³) 50 mm depth → ~12.5 m²/tonne 75 mm depth → ~8.3 m²/tonne Actual yield varies by rock, moisture, and compaction. Quantity formula Tonnes ≈ (Length × Width × Depth in metres) × 1.6

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