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DURABILIDAD NATURAL DE LA MADERA DE DOS ESPECIES APTAS PARA LA INDUSTRIA DE LA CONSTRUCCIÓN

Authors: Elisa Alicia Bobadilla; Obdulio Pereyra; Fidelina Silva; Alicia Mónica Stehr;

DURABILIDAD NATURAL DE LA MADERA DE DOS ESPECIES APTAS PARA LA INDUSTRIA DE LA CONSTRUCCIÓN

Abstract

Durabilidad natural de la madera de dos especies aptas para la industria de la construcción. El objetivo de este trabajo fue determinar la resistencia natural de la madera de Pawlonia tomentosa y Melia azedarach, frente al ataque de tres cepas de los hongos xilófagos Picnoporus sanguineus, Laetiporus sulfureus y Ganoderma applanatum, bajo dos condiciones: no tratadas y después de sufrir ciclos de lavado. Los objetivos específicos fueron a) constatar si la resistencia de las maderas estudiadas es alterada, por el ataque de los hongos después de la eliminación de las sustancias solubles en agua contenidas en la madera, y b) clasificar en categorías de resistencia de acuerdo al porcentaje de pérdida de peso siguiendo los Criterios de Findlay. Se utilizaron 5 probetas de maderas de 3 x 1 x 0,5 cm, por especie y por hongo, las mismas fueron sometidas en laboratorio a la acción de los hongos y colocadas en estufa a 28 ºC durante tres meses. Transcurrido este periodo, se pesó cada una de las probetas y se determinó el porcentaje de pérdida de peso con respecto a su valor inicial. La madera de Pawlonia resultó moderadamente durable a la acción de los hongos Picnoporus y Laetiporus, independientemente de los tratamientos, resultando no durable al ataque del hongo Ganoderma. La madera de Melia resultó ser no durable y perecedera frente a la acción de las tres especies de hongos.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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