Vulkalit S

Product specification

Applications

Pure mineral substrate, demixing-resistant
The basic components are natural pumice, light lava stone, basalt, loess and organic materials.
The mixture has an open-pore structure and a high total pore volume. It has a good nutrient buffering capacity and promotes germination and growth.
Long term high water permeability

Product uses

Planted/unplanted drainage basins
Well-drained grassed areas
Tree planting substrate
Plant-based water clarification systems

Vegetation-related properties

	0-16 mm	0-4 mm
Particle size distribution Water-extractable substances	ca. 7 Massen %	ca. 7 Massen %
Fine/moderate granule	ca. 52 Massen %	ca. 51 Massen %

Volumetric weight (compacted) With maximum moisture content	1,55 to/m³	ca. 1,51 to/m³

Water/air balance Maximum water retention capacity Water permeability (mod. K*)	ca. 34 Vol.% ca. 0,007 m/s	ca. 30 Vol.% ca. 0,003 m/s

pH	7,2	7,1

Content of carbons	ca. 5,5 g/l	ca. 5,5 g/l

Content of salts	ca. 0,5 g/l	ca. 0,5 g/l

Composition

Natural product (mixture of igneous minerals, such as lava, basalt, pumice, zeolite); contains augite, olivine, magnetite, limonite, biotite and various clays.

Chemical composition	Content*	Chemical composition	Content*
Silicic acid (SiO₂)	45,00%	Magnesium (MgO)	10,50%
Iron (Fe₂O₃)	8,30%	Potash (K₂O)	4,80%
Aluminium (Al₂O₃)	13,80%	Phosporus (P₂O₅)	1,20%
Lime (CaO)	9,10%	Manganese (MnO)	0,90%
Titanium (TiO₂)	1,80%	Sodium (Na₂O)	9,00%

* = approximate