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Decay susceptibility of rain exposed wood joints – comparison of two decay models

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Author

Summary, in English

Wood is susceptible to decay if it is exposed to high moisture contents and certain temperatures during long periods of time. In rain exposed structures, decay often starts close to joints since the joints can act as water traps where water stays after rain events. Service life prediction models for outdoor wood structures require knowledge about the moisture and temperature conditions in the wood as well as models that describe the degradation under these conditions. Recently, several models that describe decay of wood structures have been presented. In the present study, the results from two of these decay models from literature were compared. Moisture content data from a previous study where moisture content profiles were monitored in joints of different designs were used as input data in the models. In general, both models identified the same points as critical points in terms of high decay susceptibility. However, the models gave somewhat different results in points where drying occurred between the watering periods.

Publishing year

2014

Language

English

Pages

204-211

Document type

Conference paper

Topic

  • Materials Engineering

Keywords

  • Wood
  • durability
  • decay model
  • moisture content

Conference name

XIII International Conference on Durability of Building Materials and Components, 2014

Conference date

2014-09-02 - 2014-09-05

Conference place

São Paulo, Brazil

Status

Published