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

Author(s)

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

Affiliation

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

^[2] Univ Waikato, Hamilton - New Zealand

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

• Document type: Journal article
• Source: CONSTRUCTION AND BUILDING MATERIALS; v. 282, MAY 3 2021.
• Web of Science Citations: 1

Abstract

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)

• FAPESP's process: 16/26022-9 - Preservative treatment and chemical modification of bamboo for structural purposes
• Grantee: Christian Gauss
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 18/18571-8 - The influence of preservative treatment and chemical modification on the mechanical properties of bamboo
• Grantee: Christian Gauss
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate