Physical and Mechanical Properties of Sabiá Wood (Mimosa caesalpiniaefolia Bentham.)
Journal Title: Current Journal of Applied Science and Technology - Year 2017, Vol 25, Issue 4
Abstract
Wood is a natural material with technological properties that vary between species (genetic factors) and for the same species (edaphoclimatic factors). For the use of wood in civil construction, physical and mechanical properties are of interest. The aim of this research was to determine the physical and mechanical properties of the Sabiá wood (Mimosa caesalpiniaefolia Bentham.) from Caatinga, and to evaluate the possibility of its use in civil construction. From a batch obtained from Juazeiro do Norte (CE), Brazil, with moisture content 12%, test specimens were fabricated to determine their physical and mechanical properties, according to ABNT NBR 7190:1997 Brazilian Standard Code. As physical properties were determined: density at 12% moisture (ρ12); radial (RRT), tangential (RTL) and longitudinal (RLT) shrinkages. Mechanical properties considered were: strength in compression parallel (fc0) and perpendicular (fc90) to the grain, tensile strength parallel (ft0) and perpendicular (ft90) to the grain, shear strength (fv0) and cleavage (fs0) parallel to the grain, modulus of elasticity (EM) and rupture (fM) in static bending, and modulus of elasticity in compression parallel (Ec0) and perpendicular (Ec90) to the grain. The characteristic strengths (fk) were also determined for including the wood batch in the strength classes (ABNT NBR 7190:1997). The results obtained allow to classify the studied species as C40 / dicotyledons (fc0,k = 48 MPa) with density 1.04 g/cm³ and small values of shrinkage. These results enable the use of Sabiá wood for structural purposes in civil construction.
Authors and Affiliations
Maria Fátima do Nascimento, Diego Henrique de Almeida, Tiago Hendrigo de Almeida, André Luis Christoforo, Francisco Antonio Rocco Lahr
Keywords
Related Articles
- EP ID EP318878
- DOI 10.9734/CJAST/2017/38747
- Views 121
- Downloads 0
Electric Field Induced Resistance Change in PEDOT-PSS Films
Resistance of PEDOT-PSS films changes considerably with time after application of DC voltage. Since, variation of resistance over time can lead to serious errors when used as a strain gauge or gas sensors or any device,...
Phytochemical Investigation, in vitro Antioxidant and Anti-inflammatory Evaluation of Leaf Extracts of Solanum erianthum
Aims: Solanum erianthum has been used in the treatment of various diseases by traditional medical practitioners in south-western Nigeria. The leaf extracts of the plant have been shown to possess antimicrobial activities...
Assessment of HACCP Safety System and Good Manufacturing Practices in a Multi-product Soft Drink Bottling Plant
Aims: To perform an evaluation of hazard analysis and critical control points (HACCP) implementation and good manufacturing practices (GMP) in a multi-product soft drink company in Nigeria. Study Design: Semi experiment...
Genetic Divergence of Bitter Gourd (Momordica charantia L.) for Sixteen Important Yield Attributing Traits
Genetic divergence among sixteen genotypes of Bitter gourd (Momordica charantia L.) for sixteen important yield attributing traits was studied using Mahalanobis D2 statistics. The total genotypes were grouped into 6 diff...
Spatial and Temporal Trends of Monthly, Seasonal and Annual Precipitation in Districts of Jharkhand in India
Characterization of spatial variability and temporal trends in precipitation in a changing climate is vital to assess climate-induced changes to support adequate agricultural planning and water resources management strat...