Assessment of dendrocalamus asper (Schult and schult f.) (Poaceae) bamboo treated with tannin-boron preservatives

Autor(es)

Gauss, Christian ^{[1, 2]} ; Kadivar, Marzieh ^[1] ; Pereira, Ricardo G. F. ^[3] ; Savastano Jr, Holmer

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sao Paulo - Brazil

^[2] Univ Waikato, Hamilton - New Zealand

^[3] Inst Technol Res IPT, Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CONSTRUCTION AND BUILDING MATERIALS; v. 282, MAY 3 2021.
• Citações Web of Science: 1

Resumo

Tannin-boron based preservative solutions were used for the treatment of D. asper bamboo by vacuum/pressure impregnation. Samples treated with tannin/hexamine-based solutions presented low weight losses after decay tests with P. sanguineus and G. trabeum decay fungi, and were classified as resistant and highly resistant, respectively, even after leaching. However, a high boron loss after severe leaching cycles was observed. Samples treated with tannin/hexamine/boron had superior mechanical properties and increased thermal stability. The use of tannin-based solutions in combination with boron compounds showed promising results in terms of mechanical properties improvement and increased fungal decay resistance, bringing new possibilities for bamboo preservation. (C) 2021 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 16/26022-9 - Tratamento preservativo e modificação química do bambu para fins estruturais
• Beneficiário: Christian Gauss
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/18571-8 - Influência de tratamentos preservativos e da modificação química nas propriedades mecânicas do bambu
• Beneficiário: Christian Gauss
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado