Structural panel project for social housing making use of small diameter round-wood: product development / Painéis estruturais utilizando madeira roliça de pequeno diâmetro para habitação social: desenvolvimento do produto

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The purpose of this work is to identify, from the analysis of the production chain of forest based products, the chances of making use of small diameter round-wood of the Eucalyptus and Pinus types, for the production of sealing structural panels destined for social housing. Wood as a renewable building material – and, in accordance with the environmental and economic dimensions of sustainability – presents the following potentialities: sustainable forest planting and handling; adequacy to several building and structural systems; low energy consumption and low residual outcome during the production process; dismantling and reuse of the remnants in the transformation process. The method adopted for the development of the panel product was grounded on the analysis and consecutive improvement, which was based on the evaluation of the data collected in the experimental phase (production process). The following variables were considered: production easiness (man/minute, time/equipment and tooling), amount of remnant generated by the processing, cost and panel mounting easiness. The criteria adopted in the evaluation of technical execution were the following: structural, visual tightness and durability. The following criteria were used in the environmental sustainability evaluation: use of materials from renewable sources; low energy consumption; reduction of residual outcome. The economic sustainability was evaluated taken the following criteria into consideration: production easiness; mounting easiness; mass production, low cost of the materials used. Ten projects have been developed and evaluated according to the considered criteria, and the structural panel product comprising juxtaposed, short, small diameter, eucalyptus, half round-wood pieces, nailed to OSB (oriented strand board) plate, was proposed. The panel has dimensions fractionized in the height and the width of the plate (1.22 x 2,44 m), in the following measures: 0.61 x 2.44; 0.61 x 1.22; 1.22 x 1.22 m; 1.22x 2.44 m. This panel composition enables for best utilization of the so called metrinho (small pieces) pieces, which, nowadays, are 100% used in burning for the generation of energy (from bakery to industrial ovens). The proposal has shown to be doable and of easy execution, even in precarious machinery situations. The adoption of these building simplifications for the production of building components for housing may represent an opportunity to reduce the execution time, as well as the products cost, in order to serve the low income housing sector. The proposal also presents a contribution to the improvement of housing conditions and to the reduction of negative environmental impacts, caused by the civil construction through the use of non-renewable materials.

ASSUNTO(S)

structural panels painéis estruturais small diameters sustentabilidade production chain project of the product social housing cadeia de produção projeto do produto round-wood sustainability madeira roliça pequeno diâmetro habitação social

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