Product Data Sheet Show all documents

Sika® Stabilizer-3710 TBM

Strong thickener for soil conditioning in EPB TBMs

Sika® Stabilizer-3710 TBM is a strong, liquid polymer for use in EPB TBM applications. The polymer works as a binding agent which restructures heterogeneous soils with poor grading and low fines content, absorbs excess of ground water and increases soil plasticity and cohesion. This helps to improve the balance of pressure in the working chamber, leading to better ground stability and soil extraction.

  • Recommended in saturated grounds with low fines content
  • Particularly effective in coarse, clean sands and gravels below groundwater
  • Reduces soil permeability very quickly
  • Increases the viscosity of the excavated muck
  • Creates plastic deformation properties in the soil, which increases face stability
  • Increases the cohesion of coarse sands and gravels
  • Can be used as a lubricant for pipe jacking
  • Ready for use: no mixing required
Product Data Sheet Show all documents

Usage

Sika® Stabilizer-3710 TBM is used for:
  • Enhancing the performance of foaming agents in difficult ground conditions, such as coarse heterogeneous soil with low fine content, or saturated soil with high water pressure
  • Sealing the excavation face during hyperbaric interventions in combination with the injection of bentonite or filler slurries
 

Advantages

  • Recommended in saturated grounds with low fines content
  • Particularly effective in coarse, clean sands and gravels below groundwater
  • Reduces soil permeability very quickly
  • Increases the viscosity of the excavated muck
  • Creates plastic deformation properties in the soil, which increases face stability
  • Increases the cohesion of coarse sands and gravels
  • Can be used as a lubricant for pipe jacking
  • Ready for use: no mixing required

Packaging

Intermediate Bulk Container (IBC)

1000 L

Refer to the current price list for available packaging variations.

Colour

Liquid, white

Product Details

Product Information

Composition

Modified anionic polyacrylamide

Shelf life

6 months from date of production

Storage conditions

The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Always refer to the packaging.

Do not allow the Product to freeze.

Refer to the current Safety Data Sheet for information on safe handling and storage.

 

Density

(1.050 ± 0.01) kg/L

(EN ISO 2811-1)

Solubility

Miscible with water
System information

Compatibility

Compatible with Sika® admixtures and other Sika® products.

Contact Sika Technical Services for additional information.

Application

Consumption

Recommended dosage

As a guide, the appropriate dosage of the Product is between 0.5–2.0 %.

The consumption of the Product depends on the following parameters:

  • Type of soil

  • Amount of groundwater entering the excavation chamber

  • TBM excavation mode

  • TBM penetration rate

  • TBM overburden

Contact Sika Technical Services for additional information.
Application steps

APPLICATION

Preconditions

It is recommended to carry out preliminary laboratory trials to determine the optimum dosage.

  1. IMPORTANT Do not inject the Product before the foam generator. Inject the Product in the TBM through a dedicated polymer line, separated from foam lines. If this is not available, use the foam lines after the generator.
  2. Analyse the TBM data regularly to monitor Product performance.
 

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