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  Multiple Use Applications of Super Water Absorber Polymer

  The application of Super Water Absorbents polymers (SWA) as chemical solutions in TBM tunneling is becoming increasingly demanding, due to their extensive multiple use and their relative facility in the application. The use of SWA polymers is extensively employed to enhance the performance of foams, further reduce the permeability of the soil, turn the loose material into a soil paste, modifying its physical and mechanical properties to improve the balance of pressure in the working chamber. The main objective of this paper is the demonstration how SWA polymers have been used in multiple applications, thus proving that the polymers developed for soil conditioning technology have made giant steps to support contractors and the entire TBM tunneling industry.

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