Impregnation of Bambusa Vulgaris with Polymeric Resins

Article Preview

Abstract:

There are more than one thousand of bamboo species around the world, but in some areas the most common is the Bambusa vulgaris. Comparing with other species used in construction, it is more susceptible to insect attack and its strength is slower. This work shows some studies made using culms of this bamboo with the aim to improve its durability and mechanical properties by impregnation of polymeric resins into their vases. Some information about Bambusa vulgaris microstructure is done. The percentage of vases, fibers and parenchyma was measured using an optical microscope. The absorption of this species in liquids with different viscosities was determined. Using an equipment to force the liquid into the vases, time of penetration of fluids with different viscosity was measured. Results show that the fluids penetrate most easily in the internal vases, where the diameter is greater than that close to external face of the culms and confirm that it is possible to fill the bamboo vases with viscous fluid as oil or polymeric resins. The attack of insect was eliminated when a impregnation with a resin made by 80 % de styrene + 20 % de metilmetacriyate was applied to Bambusa vulgaris culms.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

27-33

Citation:

Online since:

June 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] ACHÁ, E. 2002. Estudo teórico-experimental à flexão de lajes de concreto reforçadas com forma permanente de bambu. Dissertação de mestrado. Programa de Pós Graduação em Engenharia Civil, PUC-Rio, (2002).

DOI: 10.17771/pucrio.acad.2794

Google Scholar

[2] BARBOSA, N P; TOLEDO, R D; GHAVAMI, K. 1993. Comportamento de lajes de concreto em fôrma permanente de bambu. XXVI Jornadas Sud-americanas de Ingenieria Estructural, Motevideo, Uruguai, nov 93, pp.191-202.

Google Scholar

[3] BARBOSA, N P; TOLEDO, R D; GHAVAMI, K. 1991. Vigas de concreto laterítico reforçadas com bambu. 33a Reunião Anual do IBRACON, Santos, SP, ago 91, vol 2, pp.341-355.

Google Scholar

[4] BRAGA FILHO, A .C. 2004. Bambu: generalidades e seu emprego como reforço em vigas de concreto. Dissertação de Mestrado. Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal de Campina Grande, Pb, 01 dez (2004).

DOI: 10.36229/978-85-7042-207-1

Google Scholar

[5] DALCANAL, P R; LIMA JR., H C, MENEGHETTI, L C, WILLRICH, F L, BARBOSA, N. P. 2000. Theoretical and experimental study of concrete-bamboo interface in the concrete slabs reinforced with bamboo. Anais da Conferência Internacional Sustainable Construction into the Next Millennium. João Pessoa, PB, Nov. 2000, págs. 312-325.

Google Scholar

[6] GHAVAMI, K., 2005. Bamboo as reinforcement in structural concrete elements. Cement & Concrete Composites 27, p.637–649.

DOI: 10.1016/j.cemconcomp.2004.06.002

Google Scholar

[7] LIESE, W. 1998. The anatomy of bamboo culms. INBAR. Techinical Report Nº 18. International Network for Bamboo and Rattan. Beijing, 204p.

Google Scholar

[8] LOPEZ, O. H. 2003. Bamboo, the gift of the gods. ISBN 958-33-4298-X, Bogotá, Colombia.

Google Scholar

[9] LIMA JR, H C; BARBOSA, N P.; GHAVAMI, K. 1995. Comportamento em serviço de lajes de concreto reforçadas com bambu. V EBRAMEM, vol I, Belo Horizonte, MG, Julho 1995, págs. 161-173.

DOI: 10.17771/pucrio.acad.2794

Google Scholar

[10] MOREIRA, L E. 1988. Aspectos singulares das treliças de bambu: Flambagem e conexões". Dissertação de mestrado. Programa de Pós Graduação em Engenharia Civil, PUC-Rio, (1988).

Google Scholar

[11] SOBRINHO JR. A. S. 2006. Desempenho estrutural de painéis contendo bambu e resíduos industriais para habitações de interesse social. Dissertação de Mestrado, Programa de Pós-Graduação em Engenharia Urbana, Universidade Federal da Paraíba, João Pessoa, PB, Março (2006).

DOI: 10.11606/issn.2317-2762.v1i1p39-48

Google Scholar

[12] SOBRINHO JR. A. S. 2010. Avaliação do efeito de parâmetros microestruturais e de processo de impregnação de fluidos em colmos de Bambusa Vulgaris. Tese de Doutorado em Engenharia Mecânica, Universidade Federal da Paraíba, João Pessoa, (2010).

DOI: 10.36229/978-85-7042-207-1.cap.22

Google Scholar