Wood-cement-composite behaviour of beech circular hollow sections

Sebastian Hirschmüller*, Seraphin Hubert Unterberger, Roman Marte, Jan Willem van de Kuilen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Beech laminated veneer lumber (LVL) circular hollow sections for use as nails in temporary geotechnical soil nailing systems were developed within this research. For the soil wall stability, beside a sufficient load carrying capacity of the nail cross section, a load carrying connection between the cement annulus and the nail is necessary. As cement grout ensures the bond between the nails and soil for the mobilisation of a soil reinforcement effect, a reliable connection between cement and wood surface is required. Occurring shear forces must be transferred from the nail into the soil through the wood-cement interface similar to reinforced concrete. Pull-off tests on clear LVL specimens with different cement and wood surface modifications as well as the results of large-scale push-out tests are presented. The results reveal a sufficient short-term bonding strength between the cement annulus and the wooden member to transfer the geotechnical loads, but also highlight the necessity of further research on long-term behaviour.

Original languageEnglish
Pages (from-to)301-315
Number of pages15
JournalEuropean Journal of Wood and Wood Products
Issue number2
Publication statusPublished - Mar 2021

ASJC Scopus subject areas

  • Forestry
  • Materials Science(all)


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