Landscape Specification

CONTENTS


 On Slab soil media - Turf


 Quality – Soil must be free from any ‘unwanted materials’
 Physical properties particle sizes

         Property                   Units            Target Range

         Texture, preferred range   n/a              Gravelly loam sand to organic sandy loam
         2.0 mm (fine gravel)       % retained       < 10
         1.0 mm (very coarse        by mass          < 10
         sand)
         0.5 mm (coarse sand)                        10 - 30
         0.25 mm (medium sand)                       20 - 40
         0.1 mm (fine sand)                          10 – 30
         0.05 (very fine sand)                       5 – 15 (max 25 % combine vfs, Si + Clay
                                                     combined)
         0.002 mm (silt)                             5 – 10 (< 12 % Si + Clay combined)
         < 0.002 mm (clay)                           3 – 8 (< 12 % Si + Clay combined)
         Large particles            % w/w            2 – 20 mm = < 10 %, > 20mm = 0 %
         Organic matter content     % w/w            <8
         Permeability               mm/hour          > 100 (@16 drops by McIntyre Jakobsen)
         Wettability (AS4419)       mm/min           >5
         Dispensability in water                     1 or 2 (AS 4419 Category)
         Air-filled porosity        %                ≥ 10
         Water-holding capacity     %                ≥ 40
         Saturated Density          kg/L             < 1.8

 Chemical properties

         Property                   Units            Target Range

         pH in water (1:5)          pH units         6.5 – 7.5
         Electrical conductivity    dS/m             < 2.2
         (1:5)
         Chloride                   mg/L             ≤ 200
         Ammonium-N + nitrate-N     mg/L             ≥ 50
         (NH4 + NO3)
         Toxicity index             mm               ≥ 70
         Phosphorus – P             mg/L             8 - 40
         standard range




URBIS
URB-SPC-LAN-P0025138 - IFC.DOCX                                                                 PAGE   49