Special Considerations in the Design of Connections for Recycled Wood/Plastic Composite Lumber

by George H. Kyanka, Univ of New York College of, Environmental Science & Forestry, Syracuse, United States,

Document Type: Proceeding Paper

Part of: Structures Congress XII


There is current work in the American Society for Testing and Materials (ASTM) to evaluate potential test methods for what they refer to as 'commingled' plastic lumber. This category covers the general source of raw material for these products, which is the municipal and occasional industrial waste stream. ASTM committee D20. 95 is working on standards and this paper is intended to highlight some concerns which have evolved from over five years of tests at CESF. During this span, some products tested have been withdrawn from sale, some prototypes never were introduced, and others have changed ownership. The data presented is a compilation based on a variety of materials, much as the potential user faces in the 30+ producers offering products. The fasteners tested were bolts and nails. Lag screws were used in some tests, but showed no trends which were not noted in nail or bolt tests.

Subject Headings: Wood and wood products | Composite materials | Synthetic materials | Plastics | Material tests | Wood structures | Recycling

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