Quarry Blinding

Product Description

Angular, well-graded stone dust produced from crushed rock. Designed to “blind” or seal the surface of Type 1/804 or capping, filling minor voids and creating a tight, level finish ahead of paving, concrete, or asphalt. The fines bind under compaction—ideal for blinding and light regulating but not free-draining and not a final running surface. Typical uses Blinding over sub-base before asphalt, concrete, or flags Light regulating of shallow hollows and patching Haunching/backing for kerbs and edgings Temporary hardstanding where a tight surface is needed (short term) Key properties Sizes: 0/4 mm (tighter finish) or 0/6.3 mm (slightly coarser) Standard: EN 13242 (unbound aggregates) Behaviour: Compacts tightly; non-free-draining Typical compacted lift: 25–50 mm (use multiple passes) Coverage guide (approx., compacted bulk density ≈ 1.9 t/m³) 25 mm depth → ~21 m²/tonne 50 mm depth → ~10.5 m²/tonne Actual yield varies with rock type, moisture, and compaction. Quantity formula Tonnes ≈ (Length × Width × Depth in metres) × 1.9 Installation notes Moisture-condition for best binding; compact with roller/plate Do not lay in standing water; maintain falls for drainage layers beneath For significant level build-up, use crusher run/capping first, then blind

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