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A platform for research: civil engineering, architecture and urbanism
Assessment of dendrocalamus asper (Schult and schult f.) (Poaceae) bamboo treated with tannin-boron preservatives
Highlights Acacia mearnsii tannin successfully cross-linked with hexamine and boron. Tannin-based preservatives improved fungi decay resistance of bamboo. Superior mechanical properties obtained with tannin-boron treatment. Boron compounds and tannin positively affected the thermal stability of bamboo.
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.
Assessment of dendrocalamus asper (Schult and schult f.) (Poaceae) bamboo treated with tannin-boron preservatives
Highlights Acacia mearnsii tannin successfully cross-linked with hexamine and boron. Tannin-based preservatives improved fungi decay resistance of bamboo. Superior mechanical properties obtained with tannin-boron treatment. Boron compounds and tannin positively affected the thermal stability of bamboo.
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.
Assessment of dendrocalamus asper (Schult and schult f.) (Poaceae) bamboo treated with tannin-boron preservatives
Gauss, Christian (author) / Kadivar, Marzieh (author) / Pereira, Ricardo G.F. (author) / Savastano Jr., Holmer (author)
2021-02-14
Article (Journal)
Electronic Resource
English
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