Influence of chemical additives in the production of wood-cement composites of two tropical species from Amazonia

Authors

DOI:

https://doi.org/10.5902/1980509819497

Keywords:

Inorganic binder, Vibro-compaction, Chemical accelerators

Abstract

The aim of this work was to evaluate the potential use of three different chemical additives (CaCl2, MgCl2 and hydrated lime) in the production of wood-cement composites made with particles from the slab wood of piãozinho (Eschweilera coriaceae (DC.) Mart), matá-mata branco (Eschweilera odora (poepp.) Miers) and Portland cement CP II-Z, with a wood:cement ratio of 1:2,75, by the vibro-compaction densification method. The compatibility test between wood and cement indicated that both species were suitable for the composites production when pre-treated and mixed with chemical additives. Main results: (I) The two species of the Eschweilera genus are suitable for wood-cement composite productions; Composites produced with piãozinho (Eschweilera coriaceae) particles presented better results (II) The use of CaCl2 had a positive effect on the mechanical properties of composites with Eschweilera coriaceae wood; and (III) The use of hydrated lime as chemical additives is not recommended when the method of densification by vibro-compaction is applied.

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Author Biographies

Vinicius Gomes de Castro, Universidade Federal Rural do Semi-Árido - UFERSA, Mossoró, RN

Engenheiro Florestal, Dr., Professor do Departamento de Ciências Agronômicas e Florestais, Universidade Federal Rural do Semi-Árido - UFERSA, Mossoró, Rio Grande do Norte, Brasil.

Rafael da Rosa Azambuja, West Virginia University, Morgantown, WV

Engenheiro Florestal, Me., Doutorando do Davis College of Agriculture, Natural Resources and Design, West Virginia University, Morgantown, West Virginia, USA

Carlos Frederico Alice Parchen, Universidade Federal do Paraná - UFPR, Campus IV, Curitiba, PR

Engenheiro Civil, Dr., Professor do Departamento de Construção Civil, Universidade Federal do Paraná, Campus IV, Curitiba, Paraná, Brasil.

Setsuo Iwakiri, Universidade Federal do Paraná - UFPR, Campus IV, Curitiba, PR

Engenheiro Florestal, Dr., Professor Departamento de Engenharia e Tecnologia Florestal, Universidade Federal do Paraná, Curitiba, Paraná, Brasil.

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Published

2019-09-30

How to Cite

Castro, V. G. de, Azambuja, R. da R., Parchen, C. F. A., & Iwakiri, S. (2019). Influence of chemical additives in the production of wood-cement composites of two tropical species from Amazonia. Ciência Florestal, 29(3), 1343–1353. https://doi.org/10.5902/1980509819497

Issue

Vol. 29 No. 3 (2019)

Section

Articles

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A revista CIÊNCIA FLORESTAL reserva-se o direito de realizar, nos originais, alterações de ordens normativas, ortográficas e gramaticais, com vistas a manter o padrão escolar da língua, mas respeitando o estilo dos autores. As provas finais podem ou não ser enviadas aos autores.

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