Avaliação do uso de serragem para produção de material composito com aplicação na construção civil

Abstract

One of the most important factors for the civil construction sector is the reduction of environmental impacts in all construction phases. Among the possible guidelines for reducing environmental impacts is the use of recycled materials, whether from civil construction itself or from other sectors, such as woodworking and agriculture. Many researchers have sought alternatives in studies to use the potential application of organic materials in civil construction. Among them, wood can be used in several areas, such as furniture production, molds for modeling structures in buildings, room dividers and as a structural element in the production of single-family homes. However, the use of this material generates residues that have a high potential for use, namely sawdust. The research aimed to develop and evaluate composite materials in different proportions based on castor oil and sawdust binder for use in civil construction. Density, tensile strength, water absorption and biodegradability results were extracted. The specimen with a proportion of 20% of lignocellulosic material was the one that presented the best results, determining that the object of study can be implemented in different ways in civil construction. The composites presented satisfactory results when compared with other materials already used in construction and based on organic products. It was verified, experimentally, that there is little evidence of degradation of the material, and its resistance to traction was proven. The study demonstrated that it is possible to use organic waste in civil construction, as long as it is handled correctly.