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Sika® Drain-850 Geo - Protection Board

Verified by manufacturer 6 months ago

Sika Limited

Heavy-duty drainage and protection sheet.

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+44 (0)1707 394444 Website

Application

Loose-laid and mechanically fastened protection and drainage sheet for:

  • Preformed sheet membrane waterproofing systems.
  • Liquid-applied membranes.
  • Sika® White Box concept for waterproofing retaining walls and heavy-duty roofs and podiums.

Description

Heavy-duty, 10-mm, dimpled drainage and protection sheet made from high-density polyethylene (HDPE) with a polypropylene (PP) geotextile filtration layer bonded to the top.


Feature and benefits:

  • High drainage capacity.
  • Integral filtration layer.
  • High mechanical and impact resistance.
  • Resistant to all natural aggressive mediums in ground water and soil.
  • Can be installed on damp and wet substrates.
  • Suitable for contact with soft water (aggressive to concrete).
  • The sheet forms a drainage channel in the space between the structural elements and the substrate to allow water to drain away.


Approvals:

  • Manufactured under ISO 9001 and ISO 14001-certified 'Quality and Environmental Systems'.
  • Occupational Health & Safety Management OHSAS 18001.
  • Manufactured in accordance with BS EN 13252.

General information

Color

Black

Grey

Material

Fleece

Plastic

Shape

Other

Guidance for specification option:

Sheet.

Length

12500 mm

Width

2440 mm

Uniclass

Pr_25_57_51_74 Rubber studded sheetsPrimary

CAWS

J40/290 High-density polyethylene/ polypropylene studded cavity drain membrane

Product range

Waterproofing

Specification data - Rubber studded sheets

Standard

To EN 13252.

Filter layer

Polypropylene fleece.

Guidance for specification option:

Bonded geotextile (PP) filtration.

Stud height

10 mm.

Weight (minimum)

0.12 kg/m².

Guidance for specification option:

(±12) geotextile.

Manufacturer guidance

To EN 9864.

Colour

White.

Guidance for specification option:

  • Top layer: Bonded filtration geotextile / white.
  • Bottom layer: HDPE sheet with 10 mm deep dimples / brown or black.

Performance characteristics

-

Flow rate

To EN 11058, 110 (-33) l/(m²·s).

Guidance for specification option:

Drain flow capacity to EN 12958:

  • Horizontal application* (S/R, i= 0,04) - 0.60 (-20 %) l/(m·s).
  • Vertical application* (S/R, i= 1) - 3.5 (-20 %) l/(m·s).

*Values at at 20 kPa pressure.

Manufacturer guidance

Water flow capacity.

UV resistance

-

Manufacturer guidance

Do not expose to permanent weathering and UV light.

Roll length

~12.50 m.

Roll width

~2.44 m.

Base layer

HDPE sheet with 10 mm deep dimples - Black.

HDPE sheet with 10 mm deep dimples - Brown.

Puncture resistance

To EN 12236, 1.6 (-0.32) kN.

Guidance for specification option:

Geotextile.

Manufacturer guidance

Resistance to Static Puncture.

Resistance

To EN 13433, 32 (+6) mm.

Guidance for specification option:

Geotextile, cone drop test.

Manufacturer guidance

Resistance to dynamic perforation.

Compression strength

400 (± 20 %) kPa.

Manufacturer guidance

Compression resistance.

Tensile strength

To EN 10319, 12 (-2) kN/m (MD); 10 (-2) kN/m (CMD).

Elongation

To EN 10319, 50 (±20) % (MD); 50 (±20) % (CMD).

Ambient temperature

+32°C (water).

Manufacturer guidance

Ambient Maximum Temperature of Liquids.

Literature

Sika® Drain-850 Geo

Sika® Drain-850 Geo

Case studies

BDP Studios Manchester - Sika Watertight Concrete

BDP Studios Manchester - Sika Watertight Concrete

Manchester Engineering Campus Development (M.E.C.D)

Manchester Engineering Campus Development (M.E.C.D)

Oxford Biochemistry – Phase Two

Oxford Biochemistry – Phase Two

Papworth Hospital, Cambridge

Papworth Hospital, Cambridge

Bank Station Capacity Upgrade, London - Watertight Concrete

Bank Station Capacity Upgrade, London - Watertight Concrete

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