1.014 - Finland - Helsinki

Paciusgatan (street), Helsinki FINLAND

Roads (01-014-A)

01-014-A – pag 2/2

Problem Soft, sensitive subsoil; High groundwater level, partial flooding by Baltic Sea.

Cubic Area: 4,000 m3 expanded clay, 800 m3 lightweight concrete.

Load: 43,000 vehicles/day.

Composition Road bed 20 cm lightweight concrete, Leca® 4-12 mm, cement component 200 kg/m3; Stabilisation of the top 10 cm of Leca® using bitumen emulsion (15 l/m2).

Base Leca® in areas for widening (not pre-loaded by traffic); Thickness varies between 0.3 and 1.7 m.

Subsoil 1-4 m fill (gravel and roundstone); Beneath, thick organic clays to a depth of 13 m; Water contents of 50 to 130%, shear strength 7-8 kN/m2; High groundwater levels.

Performance Measurements Settlement measurements (objective: max. 100 mm settlement in 30 years). Measurement data not available.

Flaws/damage Type: no data.

Time: -Maintenance work No data.

Construction

Walking and cycling

Carriage way

Asphaltos Asphaltos Gravel LWA concrete Bitumen emulsion LWA

Building method Application and compaction with light bulldozer.

Appraisal/Experiences Leca® can also be used on problems involving uplift pressure.

Quality control Compaction test: 550-650 kg/m3.

Plate bearing tests: Ev2 = 45-55 MN/m3.

www.maxit-group.com maxitGroup AB, Box 415, SE-191 24 Sollentuna, Sweden Tel.: +46 (0)8 858 70 64 00, E-mail: info@maxit-group.com

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