Ballast on pipes

Transportation of oil or fluids in sub-sea works is very common. In order to protect the pipes from boat traffic it is important to weigh them down, using ballast systems.


FlexiTex® is installed around the pipe at regular points. Then, filling the double weaved FlexiTex® with concrete can be done underwater easily. When the pipe is laid down the FlexiTex® concrete mattresses fit the shape of the sea-bed and limit the stress on the pipe.

The possible weights offered by FlexiTex® are from 150 to 750 kg per m2 of textile. FlexiTex® can also be used for any material or diameter of tube.

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 FlexiTex©

FlexiTex® is a textile shuttering for use at the water-side and underwater concrete work.


There has been a significant increase in the use of textile shuttering in concrete work, particularly at the water-side and underwater projects. The most important reason for this increased interest has been the introduction of woven fabrics made of high-strength multifilament synthetic fibre.

Coupled with simplified installation working procedures, this results in reduced working times and attractive cost saving.

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