DRAINMAX comb blocks
The comb blocks are an ultra-light, high-strength honeycomb structure with a storage volume of over 95%. The PP construction guarantees enormous durability, and the materials used are all recyclable. The blocks are groundwater neutral, approved for drinking water applications and UV, acid/alkali stable. The blocks are used for the construction of infiltration systems, attenuation systems or water reservoirs in foil jackets.
- three-dimensional flow
- excellent price/performance ratio
- minimum space requirement due to stackability
- very easy to install without connecting elements
- Types DM-27-30 to DM-40-30 ideal for high groundwater levels
- high load capacities up to SLW60 with 4.2 m ground cover
- permissible installation depth up to 9.5 m
- TÜV tested
Load capacity according to DIN 1072 according to TÜV report 2HGD2
| Article | Typ | Color code* | Long term strength | |
|---|---|---|---|---|
| vertical (kN/m³) | horizontal (kN/m³) | |||
| DM-27 | A | White | 33,6 | 14,0 |
| DM-35 | B | Green | 64,4 | 23,7 |
| DM-40 | C | Red | 77,3 | 31,8 |
| DM-45 | D | Yellow | 96,2 | 40,5 |
| DM-50 | E | Gold | 117,7 | 50,1 |
| DM-60 | F | Blue | 134,4 | 69,0 |
| DM-65 | G | Silver | 147,6 | 83,7 |
* Decisive color at delivery
The following table shows the maximum permissible installation depths (lower edge of infiltration blocks) for the horizontal load capacity:
| Vehicle | Truck 3 | Truck 6 | Truck 9 | Truck 12 | SLW 30 | SLW 60 |
|---|---|---|---|---|---|---|
| Spare load (kN/m³) | 3 | 4 | 5 | 6, | 16,7 | 33 |
| Typ A (m) | 1,4 | - | - | - | - | - |
| Typ B (m) | 2,6 | 2,6 | 2,5 | 2,5 | 2,1 | - |
| Typ C (m) | 3,6 | 3,5 | 3,5 | 3,4 | 3,0 | 2,4 |
| Typ D (m) | 4,6 | 4,5 | 4,5 | 4,5 | 4,1 | 3,4 |
| Typ E (m) | 5,7 | 5,7 | 5,6 | 5,6 | 5,2 | 4,5 |
| Typ F (m) | 8,0 | 7,9 | 7,8 | 7,8 | 7,4 | 6,7 |
| Typ G (m) | 9,5 | 9,5 | 9,5 | 9,5 | 9,1 | 8,4 |
Example calculation
SLW30, 1 m earth cover, single layer
1. From the diagram follows: Type B = DM-35
2. from the table follows with 1 m + 0.6 m = 1.6 m: Type B with 2.1 m > 1.6 m = ok
The load specifications are for so-called predominantly stationary loads, such as parking areas or driveways with occasional traffic. In the case of alternating loads, as with roads, separate dimensioning must be carried out.
| Palett L x W x H [m] | 2,40 x 1,30 x 2,30 |
| Max. Number of pieces / pallet [blocks] | 14 |
| Pallet weight [kg] | up to 420 |
| Volume [m³] | 6,58 |
| Weight [kg/ m³] | 27 to 65 per typ |
Transport and packing dimensions for blocks with 60 cm height
| Truck / articulated train L x W x H [m] | 7,45/14,0 x 2,42 x 2,45 |
| Max. Number of pallets | 5 / 10 |
| Max. Number of blocks [depending on block height] | 70 / 40 |
| Volume [m³] | 32,9 / 65,8 |
