Nürnberg | Nelson-Mandela-Platz
The Quadro 4 system offers an ideal root space for new tree plantings wherever the cityscape is to be shaped by an individual design. All systems are equipped with an integrated depth ventilation and impress with an easy installation. They are 99% recyclable and designed for a dynamic wheel load of 1.5 t to 5 t.
We recommend the Quadro 4 system if you give the tree a special frame on the surface and want to achieve a unique design of the environment through the design of the selected surface grating.
There are three system models, which differ primarily in their type of foundation. With the fully equipped HUNO® TreeCare, an ideal gas exchange also takes place under the root ball by means of the air caps, via the ventilation supports and the distribution in the root star.
The side rail made of HUNO® Biotextil biodegrades over time and does not stand in the way of natural root growth.
A compaction of the soil is prevented by the inner segment,
which is placed after the planting can - depending on the version - adapt itself to the growth of the trunk.
With the HUNO underfloor substrate type L 0-32, we would like to introduce you to our new tree substrate designed for maximum porosity for construction type 2 according to FLL.
Soil air is the limiting factor for tree development. Without sufficient looseness and thus soil air (oxygen) in the subsoil, this cannot be reached by the tree roots. The water and nutrients available there cannot be used. Particularly in construction type 2 according to FLL, paving compactions far above the limit of 95% of the Proctor density required by FLL occur again and again. The consequences are unnecessary obstacles to rooting and poor development of the tree.
We took this as an opportunity to offer the HUNO underfloor substrate type L 0-32.
HUNO underfloor substrate type L 0-32 offers an ideal medium with 25-35 vol% air pore space of the tree root. Even with compaction above 95% of the Proctor density, sufficient air-filled pores remain to enable deep rooting.
Natural product (mixture of loess, volcanic igneous rock such as lava, pumice) consisting of augite, olivine, magnetite, limonite, biotite, clays of various types.
Grain size distribution: 0 - 32 mm
Components that can be skimmed off: 10 - 20 % by mass
Fine and medium gravel: 25 - 40% by mass
Delivery condition DIN EN 1097-3: 1.05 - 1.15 to/m³
At max. water capacity: 1.55 - 1.75 to/m³
Maximum water capacity: 25 - 35%
Water permeability Kf: 0.01 - 0.001 cm/sec
pH 7.0 - 7.6 (6.0 - 6.5)
Salinity 5 - 40 mg/kg
|Surface rust||Freely selectable from our range|
|HUNO® Plaster stop edge||Sheet steel S235JR (EN DIN 10 027-1), square or round, 15 cm high for fastening to the profile tube construction, horizontally adjustable up to 5.0 cm for alignment in the joint pattern of the slab coverings|
|HUNO® Geotextile||With pressure-resistant grid core 670 g / m², water- and air-permeable|
|Fine mesh cover||With an aluminum-zinc alloy for better pressure distribution|
|HUNO® water-air cap||Height-adjustable, square, made of corrosion-free aluminum alloy with stainless steel lid|
|Inner segment||Welded profile tube construction, multi-part incl. welded HUNO pavement stop edge with profiles for fastening the surface grid, hot-dip galvanized according to DIN EN ISO 1461 with a lead-free zinc melt (zinc content of 98%) for screwing, self-supporting for loose insertion in the outer frame for 5.0 t wheel load, incl. openings for accommodating the HUNO ventilation caps|
|Outer frame||Bolted in several parts with 12-16 welded-on ventilation supports for integrated all-round ventilation of the planting pit and an air outlet area of approx. 1140 cm² (registered design DBGM), made of sheet steel S235JR (EN DIN 10 027-1), hot-dip galvanized according to DIN EN ISO 1461 with a lead-free zinc melt (Zinc content of 98%) for plugging into the ventilation openings of the concrete foundation|
|Coarse mesh side rail||Ungalvanized with decomposable HUNO® Biotextile for lateral floor separation|
|HUNO® TreeCare concrete foundation||4-piece, 25 cm high, 21 cm wide incl. reinforcement with stirrup cage Q188 A up to 5 t wheel load, material: C35 / 45 with high resistance to water penetration and cast-in ventilation pipes DN 100 to accommodate the ventilation supports and connection to the HUNO® WurzelStern incl. cast-in Threaded sleeves for attaching the underfloor anchoring|
|HUNO® concrete foundation||4-part, 25 cm high, 21 cm wide with reinforcement with stirrup cage Q 188 A up to 5 t wheel load Material: C 35 / 45 with high water penetration resistance with cut-outs to accommodate the ventilation supports, with cast-in threaded sleeves for fastening the underfloor anchoring|
|Root area supply||Consisting of HUNO® WurzelStern and drainage pipe DN 100 (coconut-coated) for central ventilation below the root ball|
|Connectors||Screws, washers, dowels etc.|