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Ground Drainage

With excellent water permeability, the sheet gathers rain water to drainpipes quickly. Its filter effect keeps perforated pipes from becoming clogged, preventing water pools from forming.

Image : Ground Drainage

Image : Ground Drainage

Rainwater storage method

This product has excellent water permeability, clog resistance, and durability and is used as water permeable sheets separating storage material from the permeating layer in a plastic-made rainwater storage and infiltration facility. It is also used as protective sheets for preventing Geomembrane from being damaged by storage material or backfilling soil.

Image : Rainwater storage method

Main applications and applicable Item No.
Location Construction method AN160 AN200 AN300 AN400
Ground construction Soil layer separation and horizontal drainage

* AN400 complies with the protective sheet standard of the Association for rainwater storage and infiltration technology.

Properties [catalog values]
Item No. Specification Weight
(g/m²)
Thickness
(1)
(mm)
Thickness
(2)
(mm)
Tensile
strength
(N/5cm)
Elongation
(%)
Tearing
strength
(N)
Water
permeability
coefficient
(cm/sec)
Burst
Strength
(N)
Color Width
(m)
Roll
length
(m)
*MD *CD *MD *CD *MD *CD Vertical
direction
Horizontal
direction
AN160 B Black 2.1 100 160 1.5 1.3 490 340 55 60 155 175 1×10-1 5×10-1
AN200 B Black 2.1 100 200 2.1 1.6 630 500 60 60 195 245
AN300 B Black 2.1/4.2 50 300 3.0 2.4 1170 980 60 60 245 290
AN400 B Black 2.1/4.2 50 400 4.0 3.0 1370 1170 60 60 340 390 800

* MD(machine direction)/*CD(cross direction)

* The measurement method shall comply with the following.

  • Tensile strength/tensile elongation: JIS L-1908
  • Tearing strength: JIS L-1096 (single tongue method)
  • Burst Strength: ASTM D 4833
  • Water permeability coefficient: JIS A-1218
  • Thickness (1): JIS L-1096 (pressure 7g/cm²)
  • Thickness (2): JIS L-1908 (pressure 20g/cm²)
  • The AN types are hydrophilically treated.

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