Made available in DSpace on 2022-04-28T19:45:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; The Brazilian standard ABNT 7190 (1997) establishes the strength classes C20, C30, C40 and C60 for the proper framework of the different wood types in the group of hardwoods. Associated with the strength class, which is based on the compressive strength characteristic value parallel to the fibers (fc0,k...
Made available in DSpace on 2022-04-28T17:23:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-11-01; Mercury intrusion porosimetry (MIP) is a technique used to characterize the pore size distribution and resin penetration in lignocellulosic materials, such as oriented strand board specimens (OSB), a multilayer panel utilized in structural applications. The method is based on the isostatic injection, un...
Made available in DSpace on 2022-04-28T17:23:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-11-01; The growing world consumption of wood in civil construction is evident, especially in structural roofing systems. Despite being from a renewable source, its rational and intelligent use is of vital importance in the execution of structural designs. Because it is a system that is recognized worldwide in ...
Made available in DSpace on 2022-04-28T17:23:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-11-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); This study aimed to investigate the influence of moisture content variation on 12 mechanical properties of the Cedrelinga catenaeformis species. Of the 12 properties, four were significantly affected (based on analysis of variance at 5...
Made available in DSpace on 2022-04-28T17:23:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-02-01; Wood is a natural material with properties that are strongly influenced by anatomical characteristics, so studies that aim to correlate properties through empirical equations in search of simplification to obtain the values of their characteristics are essential. In this context, this work aims to gener...
Made available in DSpace on 2021-06-25T12:24:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); The present study deals with a production of pine particleboards using the sugarcane bagasse content and using castor-oil based bicomponent polyurethane resin and ur...
Made available in DSpace on 2021-06-25T12:41:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-02-01; As wood is an orthotropic and natural material, there are several properties required for its use in civil construction. The apparent density has been used to estimate physical and mechanical properties of wood, as it is easy to determine experimentally, unlike other determinations, which involve the us...
Made available in DSpace on 2021-06-25T15:04:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); This research aimed to characterize the wood species Goiabao (Planchonella pachycarpa), following the precepts set forth in the Brazilian standard ABNT NBR 7190, as ...
Made available in DSpace on 2020-12-10T19:52:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-03-01; Forest Red Gum eucalypt provides a versatile wood and is converted into different purposes. However, such wood is somewhat limited in structural ends, which highlights the need to exploit this gap through diffusion of mechanical properties of such timber. This study aimed to evaluate the effect of moist...
Made available in DSpace on 2020-12-10T20:04:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-07-01; Wood strength values are calculated based on the characteristic value, which corresponds to the 5 % percentile of a given probability distribution model. For a few number of samples (12 samples), the Brazilian standard establishes an estimator of the characteristic compressive strength parallel to grain...