UrbanGranulate is different from standard GBSS. The use of a strong stone type, the sieving and the shape make UrbanGranulate applicable under heavily loaded roads, such as an urban access road, bus lane, industrial road or a busy square. Is processed most optimally in combination with UrbanSand 60-40 and possibly a sandwich construction. In most cases, an aeration system is recommended.
- Dry density at 97% proctor : 1700-1800 kg/m3 : NEN-EN 13286-2
- CBR-value : > 65 % : NEN-EN 13286-47
- Water permeability at 97% proctor : > 1,5 m/day : CUR test G
- pH (H₂O) : 6,0 – 7,0 : NEN-EN 13037
- pH (KCL) : 5,5 – 7,0 : NEN-ISO 10390
- EC (electrical conductivity) : 0,3 – 1,5 mS/cm : NEN-EN 13038
- CEC : > 85 mmol/l : PPO KAS 1:2
- Chloride content : < 200 mg/l : NEN-EN 13652
- SOM (soil organic matter): 9,0 – 14,0 % : DS NEN 5754
- Clay content : 3,0 – 8,0 % : DS NEN 5753
- Watercapacity at pF 1,0 (-10 cm) : 50 – 60 % : NEN-EN 13041
- Watercapacity at pF 1,7 (-50 cm) : 35 – 45 % : NEN-EN 13041
- Available water : 10 – 20 % : EN-EN 13041
- Water absorbing cap. after 24 hours : 45 – 55 % : WOK-method RHP
- Respiration rate : < 5 mmol O2/kgSOM/hour : NEN-EN 16087-1
pH (H2O) and EC determined at 1:2 ratio.
- Pore volume bij 97% proctor : > 40 % : NEN-EN 1097-6
- Grain size : 16 – 22 mm : NEN-EN 933-1
