Rooftop Meadow Grass B - Horizon
This is a B-horizon on-slab mix to be installed in association with Specification S19 – Rooftop Meadowgrass Media.
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Part C: Components
This formulation requires washed and specifically graded mineral components in order to meet the D Values specified. Lack of adherence to this may result in unacceptable slumping and compaction of time.
This product may be installed to a depth of 500mm where a B-horizon installation is designed. This is not a low density soil. Consideration must be given to structural capacity to support the load.
Description
Specification - S19a. Rooftop Meadowgrass B-horizon
Part A: “Fit-for-purpose” Performance Description
This is a B-horizon on-slab mix to be installed in association with Specification S19 – Rooftop Meadowgrass Media.
This is a highly permeable, low nutrient and very low organic matter product.
Part B: Product Specification (Technical parameters)
| Analysis |
|
||
| Physical
|
B.D. (Kg/l @ 16 drops)
|
kg/l
|
1.44 |
|
|
B.D (Predicted Ksat)
|
kg/l
|
1.75
|
|
|
Sat Hyd Cond(Deff)(mm/hr)
|
mm/hr
|
337
|
|
|
Total Porosity (%v/v)
|
%v/v
|
34
|
|
|
Water-filled Porosity %v/v
|
%v/v
|
12
|
|
|
Air-filled Porosity (%v/v)
|
%v/v
|
22
|
|
|
|
|
|
| Chemical
|
pH in water
|
pH Units
|
6.0-6.5
|
|
|
|
|
|
| Particle Size Analysis
|
>3.35mm
|
%
|
0.1
|
|
|
2.0-3.35mm
|
%
|
0.4
|
|
|
1.0-2.0mm
|
%
|
1.2
|
|
|
0.50-1.0mm
|
%
|
12.3
|
|
|
0.25-0.50mm
|
%
|
54.7
|
|
|
0.15-0.25mm
|
%
|
17.8
|
|
|
0.106-0.15mm
|
%
|
4.2
|
|
|
0.053-0.106mm
|
%
|
2.9
|
|
|
0.02-0.053mm
|
%
|
2.1
|
|
|
0.002-0.02mm
|
%
|
1.0
|
|
|
<0.002mm
|
%
|
3.5
|
| Performance Factors
|
Gradation Index (D90/D10)
|
|
7.39
|
|
|
Coefficient of Uniformity
|
|
4.86
|
|
|
Fineness Modulus
|
|
1.6
|
| D Values
|
D100:
|
|
3.688
|
|
|
D90:
|
|
0.659
|
|
|
D85:
|
|
0.495
|
|
|
D60:
|
|
0.381
|
|
|
D50:
|
|
0.335
|
|
|
D35:
|
|
0.266
|
|
|
D30:
|
|
0.242
|
|
|
D25:
|
|
0.214
|
|
|
D15:
|
|
0.158
|
|
|
D10:
|
|
0.112
|
|
|
D5:
|
|
0.028
|
Part C: Components
This formulation requires washed and specifically graded mineral components in order to meet the D Values specified. Lack of adherence to this may result in unacceptable slumping and compaction of time.
This product may be installed to a depth of 500mm where a B-horizon installation is designed. This is not a low density soil. Consideration must be given to structural capacity to support the load.