One process to improve wood quality is densification or surface compression. Our study analyzed the changes in some basic properties of pine wood, including its anatomical structure, density, modulus elasticity (MOE), and dimensions cellulose crystallites, after following soaking pretreatment CH3COOH H2O2 at a concentration 20%. Samples were sawn radial tangential directions for analysis wood. ...

Merbau wood has a disadvantage in outdoor applications because its water-soluble extractives readily leach out and stain adjacent materials. This study examined the thickness of the heat-treated wood specimen on water-soluble extractives and some mechanical properties. The results show that heat treatment is efficient at removing the water-soluble extractives of merbau heartwood and overcoming ...

This study examined chemical composition of tomato stalks and their possible feasibility in the production of particleboard. Three-layer experimental particleboards with density of 0.53, 0.63, and 0.73 g cm(-3) were manufactured from tomato stalks using certain ratios of urea formaldehyde (UF) and melamine urea formaldehyde (MUF) adhesives. Modulus of elasticity (MOE), modulus of rupture (MOR),...

Nano CuO and alkane surfactant modified phenol Formaldehyde (PF) resins were applied to manufacture plywood, and physical and mechanical properties, such as shear strength, tensile property, modulus of rupture (MOR), modulus of elasticity (MOE), as well as termite resistance were evaluated. The result showed that the combination of nano CuO and alkane surfactantplayed different effect on tensil...

A novel flattened bamboo-wood composite cross-laminated timber (CCLT) made from bamboo and hemlock lumber was developed, its mechanical performance investigated quantified in this work. The results demonstrated that the CCLT columns control CLT counterparts had nearly equal axial compression strength, but yielded a higher modulus of elasticity (MOE). Additionally, behaviors were not significant...

This study investigated the use of waste chicken feather (barbs and rachis) as reinforcement in cement-bonded composites. A series of composite boards consisting of various proportions of waste feather, cement, sand, and chemical admixtures were prepared. Mix workability decreased significantly as the proportion by weight of feathers or ground feathers increased from 5% to 20%. Boards containin...

The aim of this study has been to investigate the suitability Pannónia poplar (Populus × euramericana cv. Pannónia) timber for structural purposes. Static and dynamic modulus elasticity (MOE) determined on samples 4 different Hungarian plantation origins. results test showed same range as static test, showing a good correlation two measurements. As result it can be stated that domestic species ...

Laminated veneer lumber (LVL) and reinforced laminated (RLVL) with carbon fiber were produced from heat-treated Scotch pine (Pinus sylvestris L.) wood using phenol formaldehyde (PF), polyvinyl acetate (PVAc), polyurethane (PU) resins. Wood veneers subjected to heat treatments at 150 °C, 170 or 190 °C for 2 h before lamination. The effects of the reinforcement, treatment temperatures, resins on ...

This research article presents dual-frequency correlation models for predicting the growth of elasticity and flexural strength of engineered cementitious composites (ECCs) using microwave nondestructive inspection technique. Parallel measurements of microwave properties and mechanical properties of ECC specimens were firstly undertaken in the sense of cross-disciplinary experiments. Regression ...