Full Characterization of Erisma uncinatum Warm Wood Specie

Abstract

Wood is a material that for years has been used by man for a variety of purposes, particularly in rural and civil constructions. For the possibility of shortages of some wood species, the characterization of other little known species as alternatives is necessary. This research aimed to determine, with the aid of the Brazilian standard NBR 7190, physical and mechanical properties of Cambara rosa or Cedrinho wood (Erisma uncinatum Warm), and with the support of regression models (linear, exponential, geometric, logarithmic) based on analysis of variance (ANOVA), to estimate the values of strength and stiffness as a function of apparent density, for the density being a property of easy determination. Were obtained 12 determinations by physical and mechanical propertie, resulting in 204 experimental results. The mechanical properties of Erisma uncinatum Warm presented performance compatible with other species used in civil construction, but not being considered a high strength wood. By means of regression models to estimate the strength and stiffness values, it was found that no property can be estimated by the apparent density.