Soil stabilisation
For a solid foundation

With three soil recyclers and the associated spreading units, ÖBA is one of the largest soil stabilisation companies in Austria. We carry out projects covering up to 2,000,000 m² annually.

Areas

Photo: churned earth surface with numerous tire tracks; at left, an industrial hall with silver-grey panelling; at right, construction vehicles with oversized tyres — ÖBA performs soil improvements by means of the in-place mixing technique
© PORR

Range of Services

Soil improvement using the mixed-in method

By using a precisely calibrated mix ratio of binder to aggregate, a base course is produced that offers optimum resistance to external factors such as traffic, moisture or frost and, as an upper bound base course, provides an ideal sub-base for the subsequent road structure.

The type of base course produced depends on the binder used:

Cement-stabilised base courses (ST-Z).
Base courses stabilised with TSB binder (ST-T).
Bitumen-stabilised base courses (ST-B).
Base courses stabilised with bitumen and cement (ST-BZ).
Soil stabilisation using lime, cinder or mixed binder.

ÖBA carries out soil improvement using the in-situ mixing method. In this process, the base material applied to the respective sub-base is mixed with the binder by a recycler and then compacted.

Photo: Work equipment applies a new asphalt layer to an existing road surface. — The old asphalt pavement is combined with and fused to the new road surface.
© PORR

Range of Services

Rehabilitation of lightly trafficked asphalt roads

Asphalt roads that are subject to less heavy traffic can often be rehabilitated with minimal effort. This involves mixing the existing sub-base, the asphalt surface and – where necessary – base course material together to form a new, stable road structure.