Water-bound surface

Water-bound surface is a water-permeable surface for roads and bicycle paths, made of ecological mineral aggregates. It is a mixture of natural stone aggregates of graded grain size and special binding gravel (Premix).

Water-bound surface is used as a topping layer in park avenues, historic trails and on squares, bike paths, sports fields and playgrounds, as well as on tree framings. The mineral mixture is selected in such a way that the surface is as little dusty and smearing as possible in various weather circumstances. The road surface is permeable to water, resistant to frost and stable even under extreme weather conditions. The high shear strength ensures that water-bound surface remains stable even during intensive use. 

Patentweg - patent road - geotextile path that is gentle on roots

Areas of application:
1. fairs and exhibitions
2. temporary paths
3. improvement of facilities in green areas
4. scenography, film and television
5. places difficult to access
6. where roots are high
7. in places where the groundwater level is high

Patentweg consists of a specially developed geotextile with integrated flexible edges/tubes. The ease of application is characterized by the fact that no excavation or foundation is required. This means that projects can be completed quickly and in hard-to-reach areas.
Patentweg is particularly gentle on roots because it does not alter or damage existing soil. The geotextile element can be filled with, for example, water-bound surface, stone or cobblestones, crushed stone, gravel or wood chips. The patent path can be reused.

Advantages:
Easy to lay and dismantle
Reusable
Does not cause root damage because no digging is required
Economical and resource saving as no civil engineering work is required
Available in different widths such as: 1.0 m, 1.5 m, 2.0 m, 2.5 m, 3.0 m and special sizes

Stabilizer - organic psyllium binder for road surfaces

Application
The binder is used to stabilize the top layer of pedestrian and bicycle paths and to protect them from water erosion and dust.

Requirements for aggregate
The crushed stone must meet certain requirements before mixing, because the binder reacts only with the smallest particles of the pavement.

Production
The binder is obtained industrially by separating psyllium husks from seeds and milling them to the powder.

Properties and mixing ratio
Swells when in contact with water, shrinks when dry. As a rule, 6 kg of binder is added per ton of aggregate, depending on the slope of the pavement and the composition of the crushed stone. 

Premix - cohesive gravel

Premix is a unique, special cohesive gravel and a permanent part of the water-bound surface product. It is produced from natural raw materials extracted from various quarries in Northern Germany.
Premix has excellent water-hydraulic properties and high bond strength. It can be mixed with local aggregates and then laid as a top layer. This saves transportation costs because existing aggregates in the near surroundings of the construction site can be used for mixing. However, these local aggregates should be tested in advance in our laboratory, as not every crushed stone is suitable for an optimal mix. Once the laboratory has approved the aggregate, the exact recipe and mixing ratios can be calculated.
The premix has a high maximum bulk density and a grain size of 0-8mm.