Tweet Share

• Send by email

  Send by email

  

  Critical review of spray-applied membranes in the field of tunnelling in comparison to sheet membranes: Advantages, disadvantages and open questions

  Terms like ‘the 21st century approach’, ‘a new level of protection’, ‘innovative, costeffective method for tunnel waterproofing’, ‘a future design for dry’, ‘water resistance for hydrostatic pressures up to 100 bars’ [Ouellet 2013] and ‘significant project savings’ have introduced the technology of spray-applied membranes to the tunnelling industry in the last couple of years, providing high expectations but, up to now, without being critically reviewed from a technological point of view. The subject of this publication is to present an objective view of spray-applied membranes, not only related to the materials but also to the complex system-relevant conditions, in consideration to the state-of-the-art technology of sheet membranes and with the aim to approximate limitations and advantages of both systems. Each will be considered in turn and in view of existing industry norms, standards and guidelines for achieving watertight underground structures.

  Recipient :

  Name ^* :

  E-mail address ^* :

  ^* Required fields

  Send   or  Cancel

• Print