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TMT


TMT is an economical driving grade tai| sealant for shielded tunnel boring machines (TBM). TMT can be pumped into tail sealing chamber to prevent ingress of water, soils and annulus grout/mortar grout back into the TBM invert.

Waste soil improvement foam agent


IS SERIES product is a soil conditioning foam specifically developed to be used with tunnel boring machinery(TBM). It acts as a soil conditioner for various types of soil conditions ranging from wet to sandy clay types. The use of IS SERIESresults in the creation of temporary cohesion of the soil as well as a reduction in water permeability. IS SERIES gives the soil a cohesivecharacteristic which is necessary for tunnel boring. The foam also provides an air cushion for the soil which compensates for the abrupt pressure changes at the tunnel face.
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