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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Green-Glued Products for Structural Applications
verfasst von : Erik Serrano, Jan Oscarsson, Magdalena Sterley, Bertil Enquist
Erschienen in: Materials and Joints in Timber Structures
Verlag: Springer Netherlands
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The results from bending tests on 107 laminated, green-glued, beams manufactured from Norway spruce side boards are presented. The beams were made by face gluing 21-25 mm thick boards using a commercial one-component moisture curing polyurethane adhesive. In addition to the bending test results, results from shape stability measurements after climatic cycling and bond line strength and durability test results are also presented. The results from the bending tests show that, by applying very simple grading rules, it is possible to obtain beams with high bending strength (with a 5%-percentile characteristic value of 40,1 MPa) and substantial stiffness (mean value of 14360 MPa). Also the shape stability of the beams and the strength and the durability of the interlaminar bonds were found to be satisfactory.