The cross-laminated timber (CLT) construction system has recently emerged as an excellent alternative for civil construction. The objective of this work is to analyze the structural performance of CLT panels using plantation lumber, especially eucalyptus (Eucalyptus grandis) heartwood and pine (...

The fracture behavior of southern yellow pine (Pinus taeda L.) was experimentally analyzed in the radial-longitudinal and the radial-tangential crack propagation systems using a single-edge-notched bending test method in mode I loading condition. Three fracture parameters, the initial slope, the...

Polyurethane foam derived from vegetable oils can be used as a matrix in composites with Pinus taeda sawdust and Agave sisalana fibers. The aim of this work was to obtain and characterize polyurethane foam composites derived from vegetable oil reinforced with Pinus taeda sawdust and dispersed sisal ...

The use of c ellulosic fibers in composites is advantageous compared to inorganic materials, because they present lower density, abrasiveness and cost, besides the renewable origin. This study aimed to evaluate the influence of wood pulp obtained by the chemical (bleac hed and unbleached) and...

Lignin bioproducts derived from pulping of woody biomass find utility in multiple industrial applications. Ammonium lignosulfonates have historically displayed unique polymerization characteristics relative to other lignin materials and show promise as sustainable adhesives for the panel industry....

Cryptomeria japonica is a softwood of Japanese origin known for its versatility wood use. The objective of this work was to characterize the wood of C. japonica for kraft pulping and papermaking. For this, wood chips from a 13-year-old trees of C. japonica and, as reference material, industrial...

The soda-ethanol process was conceived as a sulfur-free pulping process, which may also be an alternative to conventional alkaline pulping, such as kraft or soda-AQ in the biorefinery context. An in-depth study using two experimental designs was conducted to establish the viability of soda-ethanol...

Technological evolution of wood harvesting machines has allowed the expansion of selective thinning areas in forest stands, with gains in productivity, but with risks to affect the work quality. In this context, the aim of this study was to evaluate the quality of harvesting operation in Pinus...

In this study, synergism between two wood modification methods was investigated with the aim of providing insights into improving wood hydrophobicity. Loblolly pine (Pinus taeda) was modified using two variants of the same treatment procedure: in the first case, paraffin wax emulsion (PWE)...

Plywood panel has a promising market in Wood Frame Construction System. Like any wood-based product, it can suffer deterioration, and preservative treatment is imperative. The preservative treatment can be done directly on a pressed panel - a conventional method that supposedly causes a decrease in ...