Resumo

SOTOMAYOR CASTELLANOS, Javier R  e  VILLASENOR AGUILAR, Jose M. Retention of Boron Salts in Three Mexican Woods: Mechanical Assessment by Vibrations. Rev. cienc. tecnol. [online]. 2016, n.26, suppl.1, pp.40-46. ISSN 1851-7587.

The aim of the research was to determine the density and the elasticity modulus of Guazuma ulmifolia, Spathodea campanulata and Abies religiosa wood and to observe the effect produced by a boron salts impregnation process on these properties. Thirty-five sets of standard specimens were studied, and impregnated with a 3% concentration solution with a hot-cold bath method. Before and after the treatment, transversal vibration tests were realized. Average values of density, natural frequency and elasticity modulus are proportional to Mexican woods previously reported. Quantitatively, results of boron salts retention were comparable with the ones reports in the bibliography. Considering that the three species were exposed to the same treatment of impregnation and tested with a nondestructive method, the research concluded that each wood species mechanically reacts in a different and independent way to the process of impregnation of Boron salts.

Palavras-chave : Density; Elasticity modulus; Absorption; Retention; Hot-cold bath.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )