MORRISON MUD PRODUCT DATA

EPB FOAM FOR STICKY AND/OR ABRASIVE FACE

TKF POLYRICH combines the powerful foam conditioning effect of TKF EXPORT FOAM with built-in polymer technology for superior lubrication and waterproofing in abrasive face.

Features and Benefits:

TKF POLYRICH is a high expansion, polymer-enhanced foam additive for mechanised tunnelling.

• It is non toxic, and safe in use.
• It helps to maximise production by:
• Helping to ensure “volumetric mucking” - i.e. exact removal of linear muck volume - thus
• avoiding surface disturbance
• Promoting smooth flow of granular material through the cutterhead and plenum.
• Adapting muck for easy muck handling in high speed/high angle conveying
• Encouraging exact volumetric mucking to avoid surface disturbance.
• Powerful waterproofing effect
• Increasing shear effect in the mining operation
• Reducing cutterhead torque
• Preventing fines washout in wet ground
• Promoting laminar flow properties in the spoil
• Muck plasticisation with minimal water addition.
• Promoting true EPB support by converting the muck mass into a pressure regulating and
• transmitting medium.
• Ensuring best condition of muck for transport from site

How to Use

Normal treatment recommendation: from 3 to 5 kg per cubic metre of in situ spoil. Solution concentration at start-up should be 5% for heavy clays; it can usually be reduced in easier ground. For high speed conveying, where muck condition is critical to conveying performance, slightly higher dose rates are beneficial.

Safety

Non toxic; readily biodegradable. WGK 1. Note: TKF Export EPB FOAM is the most concentrated foaming agent of its type on the market. Actual optimum usage concentrations will therefore be lower than weaker alternatives.

MSDS and COSHH advice available on request.

Format

Liquid: 25, 60, 200, and 1000 kg containers; bulk.