The next generation of high performance, eco-friendly tail sealants for shielded TBMs have been introduced into the Normet TBM product range. The new range of biodegradable, fire resistant tail sealants namely TamSeal TG91 and TamSeal TG92 have been formulated using plant-oil based technology. This continues the company’s commitment to developing eco-friendly and safe solutions for the tunnelling and mining industry.
Normet say TamSeal TG91 (Driving Grade) and TamSeal TG92 (First Fill) have a lower density from previous versions offering improved pumpability, allowing the wire brush chambers to be filled efficiently and economically with low material consumption. The washout characteristics, adhesion and compressibility have also been optimised through vigorous testing, mitigating wire brush leaks even with sharp changes in tunnel alignment and demanding geological conditions.
Normet has also complemented their new tail sealant products with developments in their soil conditioning technologies, they add. The eco-friendly surfactants and polymers have been formulated to reduce cutterhead torque, improve muck flow characteristics and ensure a homogenous material within the working chamber. The improvements minimise production risks and maintain advancement rates through difficult strata types whilst offering market leading economy.
Normet accompany their new product range with a solid global technical team with a track record of helping customers with problem solving and site support.
Normet
NORMET is a fast growing and innovative technology company with a passion to offer continuous improvement to our partners’ processes for increased safety, productivity and profitability.
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