Contribuição ao estudo para aplicação do po de serra da madeira em elementos de alvenaria de concreto não estrutural

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

Concern with residue from the construction industry calls upon the need for studies aiming to optimize production cycle as well as to better dispose of such residues. Evidently, recycling is certainly an excellent option. The work herein described concerns recycling of sawdust, a very undesirable residue generated by wood industries, which nowadays can only be disposed of by burning or dumping. Recycling such material engenders a new product to be used in building construction. It is studied the influence of different quantities of sawdust, partially substituting fine aggregate mineral, used to produce hollow concrete masonry blocks and elements for precast plank. Their compression load capacity, humidity, water absorption factor, net area and thermal conductivity were determined. Final results analysis leads to the conclusion that employing sawdust, up to 50% in volume, to produce concrete blocks increases their thermal isolation capacity besides reducing their total weight. However, a reduction on their compression loads capability was observed, as compared to the reference concrete blocks. Utilization of mortar of cements and sawdust as filling elements for precast plank, satisfies the brasilian norms. Thus, it is possible to conclude that the use of sawdust in partial or total substitution of the fine aggregate, contributes towards a recycling program, reducing the need for fine aggregate to produce concrete blocks and filling elements for precast plank

ASSUNTO(S)

recycling calor - condução residuos vegetais reciclagem - industria concrete blocks blocos de concreto thermal conductivity sawdust

ACESSO AO ARTIGO

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