TBM Soil Conditioning Foams

Normet’s TBM soil conditioning foams are engineered for silty to gravelly sands and adaptable to diverse humidity and groundwater conditions. These standard and polymerised foams reduce cutterhead torque, improve spoil flow, and minimize wear—enhancing the performance and sustainability of Earth Pressure Balance (EPB) TBMs. With biodegradable and non-toxic formulations, they ensure safe, efficient tunnelling across complex geologies.