From armour rock, granite, basaltic rocks and aggregate 20mm to armour rock to 1 tons. Other materials, have few type of colour sand for quality sand - high rise building, road, shore, construction sand, sand for reclamation, etc; Rock - rockbund protection, retaining wall and break water. Other materials are garnet for blasting, etc;..
Quality marine, river and land Sands-
size of sand med to coarse - fine only 10% -/+. Dry - no moisture content.
No deleterious content (silt and organic matter) Higher
Compressive strength.
