Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performance

Abstract: Outdoor durability of wood plastic composites is a major focus of research and development efforts toward development of more robust building materials. Exterior exposure of wood plastic composites can result in weathering, moisture absorption, fungal and termite attack to various levels o...

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Autores principales:	Gardner,Douglas J., Bozo,Alejandro
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2018
Materias:	decay flexural properties polypropylene termites swelling.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000202901
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spelling	oai:scielo:S0718-221X20180002029012018-09-25Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performanceGardner,Douglas J.Bozo,Alejandro decay flexural properties polypropylene termites swelling. Abstract: Outdoor durability of wood plastic composites is a major focus of research and development efforts toward development of more robust building materials. Exterior exposure of wood plastic composites can result in weathering, moisture absorption, fungal and termite attack to various levels of severity depending on the composite formulation. Long-term (> 6 years) field exposure studies of wood plastic composites are lacking in the scientific literature. It is the overall goal of this paper to report on a ten-year field study of wood plastic composites performed in Santiago, Chile. The wood plastic composite formulations were comprised of polypropylene, wood flour, and various additives. Qualitative measurements were made on the stakes each year including the determination of decay and termite ratings on a scale of 1 to 10 as specified in American Wood Preservers’ Association Standards. Surface weathering or discoloration, surface fungi colonization, presence of mold, and/or lichen was noted. The amount of dimensional change (swelling) of the samples in ground contact was determined. Determination of flexural properties of the control and 10-year exposed wood plastic composite stakes were conducted. All the wood plastic composite stake formulations maintained excellent performance ratings after the 10-year field exposure with ratings of 10 for decay and 10 for termites. The wood plastic composites stakes experienced swelling in contact with the soil with the majority of swelling occurring during the first year of exposure. Although the wood plastic composite stakes did well regarding decay and termite performance, the portion of the stakes exposed above ground exhibited various amounts of weathering, surface fungal colonization, and mold and mildew depending on the formulation. Flexural properties of the wood plastic composite stakes decreased or were maintained for the 10-year exposure depending on the composite formulation.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.20 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000202901en10.4067/S0718-221X2018005002901
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	decay flexural properties polypropylene termites swelling.
spellingShingle	decay flexural properties polypropylene termites swelling. Gardner,Douglas J. Bozo,Alejandro Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performance
description	Abstract: Outdoor durability of wood plastic composites is a major focus of research and development efforts toward development of more robust building materials. Exterior exposure of wood plastic composites can result in weathering, moisture absorption, fungal and termite attack to various levels of severity depending on the composite formulation. Long-term (> 6 years) field exposure studies of wood plastic composites are lacking in the scientific literature. It is the overall goal of this paper to report on a ten-year field study of wood plastic composites performed in Santiago, Chile. The wood plastic composite formulations were comprised of polypropylene, wood flour, and various additives. Qualitative measurements were made on the stakes each year including the determination of decay and termite ratings on a scale of 1 to 10 as specified in American Wood Preservers’ Association Standards. Surface weathering or discoloration, surface fungi colonization, presence of mold, and/or lichen was noted. The amount of dimensional change (swelling) of the samples in ground contact was determined. Determination of flexural properties of the control and 10-year exposed wood plastic composite stakes were conducted. All the wood plastic composite stake formulations maintained excellent performance ratings after the 10-year field exposure with ratings of 10 for decay and 10 for termites. The wood plastic composites stakes experienced swelling in contact with the soil with the majority of swelling occurring during the first year of exposure. Although the wood plastic composite stakes did well regarding decay and termite performance, the portion of the stakes exposed above ground exhibited various amounts of weathering, surface fungal colonization, and mold and mildew depending on the formulation. Flexural properties of the wood plastic composite stakes decreased or were maintained for the 10-year exposure depending on the composite formulation.
author	Gardner,Douglas J. Bozo,Alejandro
author_facet	Gardner,Douglas J. Bozo,Alejandro
author_sort	Gardner,Douglas J.
title	Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performance
title_short	Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performance
title_full	Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performance
title_fullStr	Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performance
title_full_unstemmed	Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performance
title_sort	ten-year field study of wood plastic composites in santiago, chile: biological, mechanical and physical property performance
publisher	Universidad del Bío-Bío
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2018000202901
work_keys_str_mv	AT gardnerdouglasj tenyearfieldstudyofwoodplasticcompositesinsantiagochilebiologicalmechanicalandphysicalpropertyperformance AT bozoalejandro tenyearfieldstudyofwoodplasticcompositesinsantiagochilebiologicalmechanicalandphysicalpropertyperformance
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Ten-year field study of wood plastic composites in Santiago, Chile: biological, mechanical and physical property performance

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