Properties Of Glue Laminated Timber

In addition a wide range of grades of both visually graded and mechanically graded lumber can be used in the manu facture of glulam.

Properties of glue laminated timber.

Licensed for autorisé à john stoll sold by vendu par csa on le april 19 2016. The glued laminated timber manufactur ing process such as being able to vary the grade of lumber throughout the depth of the member. Many different species of lumber can be used to produce glued laminated timber. Single user license only.

Glulam glued laminated timber is an engineered structural wood product that consists of multiple individual layers of dimension lumber that are glued together under controlled conditions. Glulam beams manufactured by apa members are certified with the apa trademark. Other common engineered wood products include plywood oriented strandboard osb and laminated veneer lumber lvl. Storage distribution or use on network prohibited.

0 15 w mk water vapor diffusion resistance factor µ. Permis d utilisateur simple seulement. The characteristic strength stiffness and density properties for glued laminated timber made of beech shall be taken from table 4. Le stockage la distribution ou l utilisation sur le réseau est interdit.

The mark signifies that the manufacturer is committed to a rigorous program of quality verification and testing and that products are manufactured in conformance with ansi standard a190 1 standard for wood products structural glued laminated timber. For the calculation of the relative slenderness for bending λ rel m or the critical bending stress σ m crit in accordance with din 1052 2008 12 section 10 3 2 the fifth percentile value product of the characteristic stiffness values may be multiplied by a. Glued timber is a wood product which does not fulfil the laminated timber standards but is made by gluing two or more items of sawn goods together. 40 the natural durability and corrosion resistance resistance to aggressive chemical attacks of glulam corresponds to the natural durability and corrosion resistance of the respective wood species regardless of the adhesive used.

Such products are used as they are in loadbearing construction and as blanks for various wood products such as window frames laminated logs etc. In this study three layered cross laminated timber clt manufactured from acacia mangium wood panels were developed by using two different types of adhesives namely phenol resorcinol formaldehyde prf and one component polyurethane pur. The apa mark of quality. Thermal conductivity λ perpendicular to the glue lines.

The aim of this work is to investigate and compare the physical and mechanical properties of clt manufactured using prf and pur adhesives. Strength graded and ready finished glued timber. In north america the material providing the laminations is termed laminating stock or lamstock.