This site uses cookies to offer you a better browsing experience. Find out more on how we use cookies and how you can change your settings. ×
Low-carbon materials & Circular Economy
Print
image

Hybrid composite slabs using beech wood

By using beech wood for both formwork and steel reinforcement in timber-concrete composite slabs, energy consumption can be significantly reduced. This composite slab is made up of a thin LVL beech wood plate (thickness 40–60 mm) and a concrete layer (thickness 120–160 mm). Notching is used for connection instead of steel fasteners. The timber and concrete are connected with 15 mm deep notches in the LVL beech wood plate, which transmit the shear force through the compressive contact of the two materials.

Product Description

  • Technical advantages in comparison to timber floors:
    • higher strength and stiffness under gravity load
    • better seismic resistance
    • improved sound insulation
    • high fire resistance
  • Strong and stiff beech LVL plates (when compared to spruce) have a higher load-carrying capacity and ensure satisfactory load-deformation behaviour
  • Slender layout saves concrete and timber material
  • Less steel reinforcing needed

Target market

  • Building developers (public, private), construction companies, architectural and engineering companies
  • Switzerland/Europe
Success
A cost-competitive and effective alternative to reinforced concrete. Climate Relevance To significantly reduce CO2 emissions by replacing concrete with ecofriendly renewable timber.
Climate Relevance
To significantly reduce CO2 emissions by replacing concrete with ecofriendly renewable timber.
People
Contact person
Prof. Dr. Andrea Frangi
E-mail
frangi@ibk.baug.ethz.ch
Leading Institution
ETH Zurich
Living Lab
ETH House of Natural Resources
Our Partners