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The role of engineering structure waterproofing is to protect the deck and structure from
the corrosive effects of zenithal water, which may also contain aggressive products such as
decicing salts used on pavements in winter.
Laying a waterproof screen on a concrete deck can sometimes produce unwanted side effects.
Because of the microporosity of the concrete, air and water can become trapped under the
waterproofing and air and steam escaping from the concrete can produce blistering that can
damage the waterproofing and the surface course.
The new Viaplast® process developed by Eurovia eliminates the risk of blistering and can be applied at high output rates.