Membrane

LM1002 Waterproofing Membrane

PRE-APPLIED FULLY-BONDED HDPE WATERPROOFING MEMBRANE

LM1002 membrane is a high quality pre-applied waterproofing membrane especially fabricated for structures subject to high groundwater pressure or high impressed load.

The membrane with its exceptional waterproofing feature can ensure the structure to last.

It is designed to be used exclusively for urban tunnels, mountain tunnels, large storage tanks and structures with more than 2 basements requiring special waterproofing and load bearing techniques.

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  • LM1002 membrane has very high mechanical properties, ensuring waterproofing under high pressure of groundwater.
  • The product can fully bond with concrete structure, thus minimizes water-leaking risks.
  • Easy application and construction quality control
  • Accelerates the construction progress. Can set rebar
    and directly pour concrete on the waterproofing
    membrane without any protective layer.
  • Can be spread directly on the ground, compressed
    macadam or lean concrete.
  • Not effected by substrate moisture or weather, can
    be applied on wet or dry surfaces.
  • Long lifespan.
  • Urban traffic tunnels, mountain tunnels, underwater tunnels
  • Basements of buildings
  • Underground water tanks, underground water canals ҋ Waste water tanks
  • Underground structures in corrosion areas
  • All underground concrete structures
  • a. Packaging: 1.0 m x 20 m/roll
  • b. Thickness: 1.2mm or 1.5mm

a. Substrate preparation:

  • The concrete surface must be clean, free of dirt and sharp objects
  • The concrete surface must be flat, without edges > 5 mm or gaps > 10 mm
  • Substrate before application can be wet but without standing waterapplication of the waterproofing membrane.
  • Ensure the substrate to be solid, without subsidence
  • Substrate must withstand the load of reinforced
    concrete after pouring.

b. Membrane application:

  • Directly place HDPE side of waterproofing membrane on the lean concrete or formwork, sanding surface facing concrete structure.
  • Long edges of the rolls shall be overlapped a minimum width of 80 mm and firmly joined together by self-adhesive function with roller.
  • Short edges of the rolls shall be overlapped and sealed by Tape LM 01ST.
  • Width of Tape LM 01ST is 80 mm. Firmly adhere LM 01ST by rollers after application.
  • Clean the membrane by water, remove the garbage, loose materials and sharp objects. Remove all standing water on the membrane before pouring concrete.
  • Only remove formwork when concrete has reached a minimum of 10 MPa or after 4 days.
  • This product is safe for handling, storing and application.
  • Keep product away from any heat sources.
  • This is a non-toxic and environmental-friendly product.
  • Users shall refer to the most recent Technical Data Sheet for physical, ecological, toxicological and other safety-related information.
  • Store product in dry condition.
  • Don’t put product in areas with direct sunlight, rain, snow, ice.
  • Storage temperature ranges from +5°C to +40°C.
  • Rolls must be stored in original packages, in vertical position.
  • Cast concrete after installing LM1002 a maximum of 40 days
  • Should use sand as backfilling material.
  • Waterproofing membrane must be protected from mechanical damage.
  • Foam or geotextile protection layers are recommended outside membrane backfilling.
  • All technical datasheets are based on laboratory test. Actual measured data may slightly differ from specification.

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