Sika® Foam TBM-101 FB (TH)
FOAMING AGENT FOR TBM - EPBM TUNNELING
Sika® Foam TBM-101 FB (TH) is a liquid foaming agent based on biodegradable anionic surfactants and a high efficiency polymer.
- Produces stable foam which can easily injected in High to low permeability soils reducing the risk of front shield pressure loss.
- It can be used both in acid and basic soils.
- The high efficiency polymer allows keeping the shield clean from clays.
- Its lubricating capacity minimizes friction between soil particles and reduces the head torque.
- Easy to handle.
- Fresh and hard water can be used.
- Eliminates dust in air drilling and reduces the wear of cutters also in rock excavation (adopt a FER 10 – 20 and a FIR 15 – 30).
- Prevents clay from plugging.