SciELO - Scientific Electronic Library Online

 
vol.31 issue5Numerical evaluation of the modulus of longitudinal elasticity in structural round timber elements of the Eucalyptus genusAutomatic control of water sistems in the cleaning step in fresh market tomato packing units author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Engenharia Agrícola

Print version ISSN 0100-6916

Abstract

MOLINA, Julio C.; CALIL JUNIOR, Carlito  and  FREITAS, Roberto R. de. Mathematical model to estimate of the deterioration of wooden poles in contact with soil used in rural areas. Eng. Agríc. [online]. 2011, vol.31, n.5, pp. 1015-1026. ISSN 0100-6916.  http://dx.doi.org/10.1590/S0100-69162011000500019.

In São Paulo State, mainly in rural areas, the utilization of wooden poles is observed for different purposes. In this context, wood in contact with the ground presents faster deterioration, which is generally associated to environmental factors and, especially to the presence of fungi and insects. With the use of mathematical models, the useful life of wooden structures can be predicted by obtaining "climatic indexes" to indicate, comparatively among the areas studied, which have more or less tendency to fungi and insects attacks. In this work, by using climatological data of several cities at São Paulo State, a simplified mathematical model was obtained to measure the aggressiveness of the wood in contact with the soil.

Keywords : durability of wood; decay of wood; wooden poles.

        · abstract in Portuguese     · text in English     · pdf in English