Durability of "Pinus elliottii" wood impregnated with quebracho colorado ("Schinopsis balansae") bio-protectives

• Autores: Aldo C. Bernardis, Orlando Popoff
• Localización: Maderas: Ciencia y tecnología, ISSN 0717-3644, ISSN-e 0718-221X, Vol. 11, Nº. 2, 2009, págs. 107-115
• Idioma: inglés
• Enlaces
  • Texto completo (pdf)
• Dialnet Métricas: 2 Citas
• Resumen

  • Some wood preservatives have a warning due to environmental restrictions and risks to man health. The aim of this study is to determine the performance of non impregnated and impregnated wood with a CCA salt and a bio-protective made from “quebracho colorado”, when facing the action of fungi responsible for white rot decay by Pycnoporus sanguineus and brown rot attack by Gloeophyllum se-piarium.  Wood samples were impregnated with different solutions by vacuum-pressure method. The design was in complete blocks at random with fi ve repetitions. The treatments were T0: non impreg-nated blank sample; impregnated T1: CCA; T2 Colatan IPG-F, T3: Colatan IPG-C, T4: Colatan IPG-C, with retentions of: 6, 18, 9 and 25 kg m-3 respectively. The variable was wood weight loss. Preservative CCA and bio-protective Colatan IPG-C increased the resistance to fungal degradation in lab assay, changing from non-resistance to very resistant (Findlay criterion), guaranteeing the biodegradation process inhibition.