River materials
NEEDFL Mat
APS
APS
River bank (behind the river)
River revetment (river back) block installation status
Norijiri drain work (using EG drain)
Basket mat work
NEEDFL mat APS (Prevention of soil draw-out sheet for river bank protection)
A fiber layer is formed by randomly arranging chemically synthesized fibers with excellent water resistance and corrosion resistance.Furthermore, by needle punching, each fiber is intertwined and bonded three-dimensionally, resulting in a nonwoven fabric for civil engineering that has excellent strength and elasticity.
Features
- Due to its high tensile strength and elongation rate, it does not break easily even when loaded with heavy objects.
- Because it has elasticity and excellent cushioning function, it will not break easily even when impacted by blocks, crushed stones, etc.
- Because it is flexible, it easily adheres to the construction ground and is excellent for prevention of soil draw-out and scouring of river banks.
- Made of synthetic fiber, it has excellent chemical resistance and corrosion resistance, and can be used for a long time.
- Because the fibers are layered three-dimensionally, it has excellent water permeability and exhibits excellent drainage, sediment separation, and filter effects.
Uses
- Prevention of soil draw-out and scouring prevention of river revetments, embankments, and riverbeds
- Filter material for Hojiri drain work
- Other civil engineering construction work
Spec.
NEEDFL mat APS (Prevention of soil draw-out sheet for river bank protection)
| Product number | Thickness (mm) | Width (m) | Length (m) |
| APS-10 | 10 | 2 | 10 |
| APS-20 | 20 | 2 | 10 |
NEEDFL Matte APS-10
| Item | standard | Remarks |
| thickness | 10mm or more | - |
| Tensile strength | 10kN/m or more | vertical/horizontal |
| chemical stability (Strength retention rate) | 70% or more 130% or less | JIS K 7114 mutatis mutandis (PH5-9) |
| Weatherability (Strength retention rate) | 70% or more 130% or less | JIS A 1410 JIS A 1415 mutatis mutandis |
NEEDFL matte APS-10 ・APS-20
| Test items | Message | Internal standard value | Test method | |
| APS-10 | APS-20 | |||
| Thickness (mm) | 10 and over | 20 and over | JIS L3204 Compliant | |
| Density (g/cm3） | 0.12 and over | |||
| Compression rate (%) | 12 or less | |||
| Tensile strength (kN/m) | Vertical horizontal | 10 and over | 20 and over | |
| Stretch rate(%) | 50 and over | |||
| chemical resistance(%) | Insoluble matter | 90 and over | ||
| Permeability coefficient (cm/sec) | 1x10-2Above | |||
