Saturated salt method determination of hysteresis of Pinus sylvestris L. wood for 35 ºC isotherms

Authors

  • L. García Esteban Universidad Politécnica de Madrid. Escuela Técnica Superior de Ingenieros de Montes. Departamento de Ingeniería Forestal. Cátedra de Tecnología de la Madera
  • A. Guindeo Casasús Universidad Politécnica de Madrid. Escuela Técnica Superior de Ingenieros de Montes. Departamento de Ingeniería Forestal. Cátedra de Tecnología de la Madera
  • P. de Palacios Universidad Politécnica de Madrid. Escuela Técnica Superior de Ingenieros de Montes. Departamento de Ingeniería Forestal. Cátedra de Tecnología de la Madera
  • F. García Fernández Asociación de Investigación Técnica de las Industrias de la Madera y el Corcho

DOI:

https://doi.org/10.3989/mc.2004.v54.i276.255

Keywords:

hysteresis, sorption, desorption, hysteresis coefficient, saturated salts, Pinus sylvestris

Abstract


The saturated salts method was used in this study to quantify hysteresis in Pinus sylvestris L. wood, in an exercise that involved plotting the 35 ºC desorption and sorption isotherms. Nine salts were used, all of which establish stable and known relative humidity values when saturated in water The wood was kept at the relative humidity generated by each of these salts until the equilibrium moisture content (EMC) was reached, both in the water loss or desorption, and the water uptake or sorption processes. The Guggenheim method was used to fit the values obtained to the respective curves. Hysteresis was evaluated in terms of the hysteresis coefficient, for which a mean value of 0.87 was found.

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Published

2004-12-30

How to Cite

García Esteban, L., Guindeo Casasús, A., de Palacios, P., & García Fernández, F. (2004). Saturated salt method determination of hysteresis of Pinus sylvestris L. wood for 35 ºC isotherms. Materiales De Construcción, 54(276), 51–64. https://doi.org/10.3989/mc.2004.v54.i276.255

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Section

Research Articles