Oil absorption under railway

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Summary:

Austria

HUESKER Synthetic GmbH

Tektoseal Active AS is a mechanically reinforced oil absorption agent that reliably binds petrochemical products. It combines a high-performance, oil-absorbing polymer with the mechanical stability of geotextiles. Apart from extending the application range and service life of the constituent polymer, the resulting active Geocomposite can also be readily adapted to meet challenging project-specific requirements.

Greases and oils used as operating fluids in railway transportation can pose a threat to the groundwater. In parking areas which are used prior or after maintenance, the probability of a contamination is increased. If contamination occurs the gravel and possibly the different layers below the tracks have to be remediated. This operation can be very expensive and consume time and effort.

In order to significantly reduce the danger of contamination Tektoseal Active AS was installed at the Austrian Railway (ÖBB) station in Schärding as preventing measure. Tektoseal Active AS was fixed to the sleepers so that any grease and oil could be absorbed by the active layer preventing contamination below. For a quick and easy installation the material was delivered in units of three rolls.

One roll with a total width of 1.40 m and two rolls with 0.35 m width. The rolls only had to be unrolled and fixed to the sleepers on site.

Tektoseal Active AS is a mechanically reinforced oil absorption agent that reliably binds petrochemical products. It combines a high-performance, oil-absorbing polymer with the mechanical stability of geotextiles. Apart from extending the application range and service life of the constituent polyme, the resulting active geocomposite can also be readily adapted to meet challenging project-specific requirements.

Depending on on-site needs there are two different standard product types available: Tektoseal Active AS 200 and Tektoseal Active AS 400. They have different amounts of oil absorbing polymers and thus provide different absorption capacities. In this project of the ÖBB displayed here Tektoseal Active AS 400 was deployed.

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