4.001

House foundation LIGHTWEIGHT HOUSE FOUNDATION FREDERIKSHAVN, DENMARK – 2004

Sub base compensation

The city of Frederikshavn is building housings.

The construction side is soft soil.

The soft soil is located very deep and it is therefore not accessible for replacement by normal weight gravel.

Pile foundation was another possibility but was considered less applicable.

Both the methods replacement with normal weight gravel and pile foundation was calculated to be more expensive than load compensation.

Load compensation with Leca was therefore the solution to the problems.

The density of the used Leca is only one sixth of the removed soil.

A 90 cm soil stratum was removed and replaced with Leca速.

This replacement was enough to carry the buildings and to ensure that no settings will occur.

The house foundation is pre-fabricated concrete elements placed directly on the Leca light filling. After that the Leca floor insulation was installed in between the elements.

The concrete floors were then cast together with the pre-fabricated foundation elements.

The concrete floors were reinforced with normal steel reinforcement to form a solid load distribution platform witch also gave the basis for the floor construction.

This gives stable and well-insulated base for the erection of the house.

The construction method was very fast and even though the houses were erected in February with temperatures below the freezing point there were no problems.

The houses are traditional double leaf walls with a clay brick facade.

12 houses were erected on the Leca light filling.

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

DENMARK TECHNICAL DATE OF THE PROJECT 1.400 m3 Leca速 installed.

Year of construction: 2004.

Consulting Engineers: NIRAS A/S designed the geotechnical solution.

Contractor: Bangsminde ApS in Frederikshavn.

construction is