Sika BentoShield® MAX LM

Sika BentoShield® MAX LM

Sika Limited Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Fully-bonded, self-healing waterproofing system.

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Application

Specifically formulated to protect concrete structures against natural mediums and gases in soil, groundwater or seawater.

Can be used in any below-ground structures for horizontal and vertical applications that are exposed to aggressive ground conditions and stress such as:

  • Basements.
  • Tunnels.
  • Diaphragm walls.
  • Under-slab applications, including pile caps and penetrations.
  • Direct application within steel sheet piling.
  • Below structural reinforced concrete slabs.

Description

Fully-bonded, self-healing, mechanically bonded, contaminate-resistant waterproofing membrane. It is a pre-hydrated, needle-punched, PE-flexible membrane that combines the swelling performance of sodium bentonite with high-strength polypropylene geotextiles. The bentonite clay component can swell, sealing cracks and minor holes and forming an impermeable layer.

Benefits:

  • High-performance watertight sealed lap, tested to BS EN 1928.
  • Self-healing, puncture-resistant natural sodium bentonite tanking, tested to BS 8102.
  • A flexible polyethylene layer is integrally bonded to the non-woven geotextile.
  • Polymer-modified BBA-accredited barrier system, designed to resist contaminated and saline ground water.
  • Laminated low-density polyethylene (LDPE) layer provides protection against climate and environmental variations.
  • Automatic mechanical bond to freshly poured concrete eliminates water tracking.
  • Can be applied in temperatures below freezing.
  • Ten-year guarantee when used as a single system.
  • 15-year guarantee when used in dual system with Sika Watertight Concrete or Sika Cavity Drainage System.

Applications:

Specifically formulated to protect concrete structures against natural mediums and gases in soil, groundwater or seawater.

Can be used in any below-ground structures for horizontal and vertical applications that are exposed to aggressive ground conditions and stress such as:

  • Basements.
  • Tunnels.
  • Diaphragm walls.
  • Under-slab applications, including pile caps and penetrations.
  • Direct application within steel sheet piling.
  • Below structural reinforced concrete slabs.

Approvals:

  • Manufactured under ISO 9001- and ISO 14001-certified 'Quality and Environmental Systems'.
  • Occupational Health & Safety Management OHSAS 18001.
  • BBA-certified.
  • CE-marked.

General information

Uniclass 2015

Pr_15_57_27_39 Geosynthetic clay liners (GCLs)Primary

CAWS

J40/285 Loose laid bentonite damp proofing/ tanking

Specification data - Geosynthetic clay liners (GCLs)

Product Reference

Sika BentoShield® MAX LM

Accessories

Not required

Sika BentoShield® MAX Granules

Chemically treated sodium bentonite granules to place in critical areas for additional sealing.

Fixings

Manufacturer-recommended fixing system for a secure and safe method for securing the membrane.

Sika BentoShield® Paste

rowel-grade sodium bentonite compound used as a detailing mastic around penetrations and corner transitions.

SS50 tape

50 mm-wide single-sided butyl tape for sealing laps and penetrations.

Termination strip

12 x 10 mm galvanized steel bonding strip to fix the top edge of the membrane on walling sections.

Standard product features

Form:

Black and white non-woven geotextiles, yellow polyethylene laminate.

Thickness:

6.5 mm.

Density:

500 kg/m².

pH value:

9.5 ± 0.5.

Technical characteristics:

  • Hydrostatic pressure (ASTM D 5385): 70 m.
  • Permeability (ASTM D 5887): <1.0 x 10–11 m/sec.
  • Index flux (ASTM D 5887): <5.0 x 10–9 m³/sec-m².
  • Tensile strength (ASTM D 6768): >10 kN/m.
  • CBR Puncture (EN ISO 12236): >1850 N.
  • Peel adhesion to concrete (ASTM D 903): > 2.5 kN/m.
  • Bentonite content (ASTM 5993): >5000 g/m².
  • Free swell (ASTM D 5890): > 27 ml/ 2g.
  • Fluid loss (ASTM D 5891): <15 ml.
  • Montmorillonite content (XRD analysis): <80%.
  • Non-woven mass/ unit area (ASTM D 5261): 200 g/m².
  • Woven mass/ unit area (ASTM D 5261): 110 g/m².
  • PE thickness (ASTM D 5199): 0.2 mm.

Third party certifications

  • 16/5342