Product Data Sheet Show all documents

Sika® Stabilizer-1518 TBM

Foaming agent for TBM - EPBM tunneling

Sika® Stabilizer-1518 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 highly cohesive 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
  • 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
Product Data Sheet Show all documents

Usage

  • Produces a stable foam which can be easily injected into highly cohesive 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
  • 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

275 US gallon totes (1040 Liters)

Bulk delivery

Custom packaging is available to suit specific project requirements

Color

Clear, Slightly Yellow Liquid

Product Details

Product Information

Chemical Base

Anionic surfactants and high efficiency polymer

Shelf Life

12 months from date of production

Storage Conditions

Store in original, unopened and undamaged packaging in dry conditions at temperatures between 41°F - 95°F (5 °C - 35 °C)

Always refer to packaging

Specific gravity

Approx. 1.05

Solubility

Completely soluble in water

pH-Value

Approx. 5.5

 
System information

Compatibility

Compatible with Sika® admixtures and other Sika® products.

Contact your Sika STM Technical Representative for more information.

Application

Application Information

Mixing

Inject through standard TBM dosing and foaming equipment
Consumption

Recommended Dosage

Dosage

~1.5 % to 3.0 %

Foam Expansion Ratio (FER)

~1:2 to 1:20

Foam Injection Ratio (FIR)

~10 % up to 100 %

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 your Sika STM Technical Representative for more information.

Documents