Technical Report
 

Lateral bearing strength of fasteners in lumber-plywood joints treated with fire retardants

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https://ir.library.oregonstate.edu/concern/technical_reports/kh04dq911

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  • Joints were fabricated from different combinations of untreated and fire-retardant- treated (FRT) Douglas-fir dimension lumber and 3/8-inch plywood. Eight types of fasteners and three fire-retardant treatments were tested. Joint specimens were exposed 2 and 7 years in cold, standard, and warm-humid conditions, then tested in lateral bearing. Best overall performance was from joints made with 6d hot-dipped galvanized nails; 6d monel nails were next best. Although results from several types of fasteners used in treated wood and exposed in cold and standard conditions were as good as results obtained from untreated controls, most specimens exposed in warm, humid conditions were reduced in strength; some were reduced to zero strength.
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  • Master files scanned at 600 ppi (256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 Grayscale), using Capture Perfect 3.0, on a Canon DR-9080C. CVista PdfCompressor 3.1 was used for pdf compression and textual OCR.
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file details RP_no_28.pdf 2017-07-18 Public Télécharger