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Sika® Stabilizer-1118 TBM

Foaming agent for TBM - EPBM tunneling

Sika® Stabilizer-1118 TBM is a specially designed liquid soil conditioning foaming agent without glycol. It has been formulated to be used with earth pressure balance machines (EPBM) for modifying the properties of the excavated soil particularly in low to high permeability soils.

  • Modifies properties of the excavated soil
  • Improves the excavation process and TBM performance
  • Can be used in acid and basic soils
  • Lubricating properties minimises friction between soil particles and reduces the cutting wheel torque
  • Prevents clay from plugging (with a low percentage of clay in the soil)
  • Reduces dust in the air and decreases the wear of cutters in rock excavation (adopt low FER and FER parameters during application)
  • Easy to handle and use
  • Normal or hard fresh water can be used to produce the foam
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Usage

Produces a stable foam which can be easily injected into low to high permeability soils during tunnelling operations with earth pressure balance machines (EPBM)  

Advantages

  • Modifies properties of the excavated soil
  • Improves the excavation process and TBM performance
  • Can be used in acid and basic soils
  • Lubricating properties minimises friction between soil particles and reduces the cutting wheel torque
  • Prevents clay from plugging (with a low percentage of clay in the soil)
  • Reduces dust in the air and decreases the wear of cutters in rock excavation (adopt low FER and FER parameters during application)
  • Easy to handle and use
  • Normal or hard fresh water can be used to produce the foam

Packaging

50 L and 200 L drums.

1000 L tanks

Colour

Liquid / Clear, slightly yellow

Product Details

Product Information

Composition

Anionic surfactants

Shelf life

12 months from date of production

Storage conditions

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and 50 °C. Always refer to packaging.

Density

1.025 kg/l ± 0.025

Solubility

Completely soluble in water

pH-Value

9.5 ± 1

 
System information

Compatibility

Compatible with Sika® admixtures and other Sika® products. Contact Sika Technical Services for additional information.

Application

Application Information

Dispensing

Inject through standard TBM dosing and foaming equipment
Consumption

Recommended dosage

Dosage

~1.5–3.0 %

Foam Expansion Ratio (FER)

~1:2 to 1:20

Foam Injection Ratio (FIR)

~10 % up to 60 %

This information is a guide only and will be specific to each soil type.

Preliminary trials in the laboratory must always be carried out to determine foam parameters, such as dosage, FER and FIR.

Contact Sika Technical Services for additional information.

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