Lemminkäinen Group / Infrastructure Construction / Lemminkäinen Infra Oy


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Landfills and basins

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Environmental protection regulations require that these structures are impermeable to the liquids that they contain. We have developed asphalt solutions that can be used to achieve this.


Chemicals and other hazardous substances must not be allowed to pollute the environment, soil and groundwater. The asphalt products that we have developed for environmental protection can be used either singly or in combination, depending on the application in question.

A composite structure is used where there is continuous water pressure and in demanding applications such as landfill lining. A composite structure consists of a waterproof synthetic barrier and an impermeable mineral base.

Depending on the application, either a two-layer structure of dense Lemdense asphalt concrete or a combination of Lemproof polymer-modified bitumen gussasphalt and Lemdense asphalt concrete is used.

The waterproof asphalts in our product range are Lemdense, Lemproof and Lemmastix. A waterproof asphalt structure consists of two layers of dense asphalt. Typical applications are different kinds of basins, service stations, airports and industrial yards.