Creep deflection of Wood Polymer Composite profiles at demanding conditions

Martien van den Oever; Karin Molenveld

doi:10.1016/j.cscm.2019.e00224

Creep deflection of Wood Polymer Composite profiles at demanding conditions

Martien van den Oever^*, Karin Molenveld

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

9 Citations (Scopus)

Abstract

Durability and low maintenance make Wood Polymer Composite (WPC) profiles popular in decking applications. EN 15534-4 specifies minimum performance levels to guarantee WPC quality. However, despite such quality specifications, occasionally high temperature creep issues are reported. This paper evaluates the creep performance of three commercial WPC decking profile grades. All three WPC grades meet the requirements specified in EN 15534-4. Nevertheless, at slightly more demanding load conditions, some WPC samples fail around the creep deflection limits specified in the standard, and which are supposed safe. Reference outdoor testing in the moderate climate of the Netherlands shows creep deflection rates which are expected to lead to fatal failure of these WPC samples in a couple of years. It is concluded that predictive testing requires insight in progressive creep strain development relative to fatal failure strain level.

Original language	English
Article number	e00224
Journal	Case Studies in Construction Materials
Volume	10
DOIs	https://doi.org/10.1016/j.cscm.2019.e00224
Publication status	Published - 1 Jun 2019

Keywords

Creep
Outdoor condition
Strain
Testing standard
Wood polymer composite (WPC)

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10.1016/j.cscm.2019.e00224Licence: CC BY-NC-ND

https://edepot.wur.nl/470949Licence: CC BY-NC-ND

OPEN-BIO: Opening bio-based markets via standards, labelling and procurement
1/11/13 → 31/10/16
Project: EU research project
Open Bio AF-EU-14008 (BO-21.04-001-016)
van der Zee, M. (Project Leader)
1/01/13 → 31/12/16
Project: LVVN project

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title = "Creep deflection of Wood Polymer Composite profiles at demanding conditions",

abstract = "Durability and low maintenance make Wood Polymer Composite (WPC) profiles popular in decking applications. EN 15534-4 specifies minimum performance levels to guarantee WPC quality. However, despite such quality specifications, occasionally high temperature creep issues are reported. This paper evaluates the creep performance of three commercial WPC decking profile grades. All three WPC grades meet the requirements specified in EN 15534-4. Nevertheless, at slightly more demanding load conditions, some WPC samples fail around the creep deflection limits specified in the standard, and which are supposed safe. Reference outdoor testing in the moderate climate of the Netherlands shows creep deflection rates which are expected to lead to fatal failure of these WPC samples in a couple of years. It is concluded that predictive testing requires insight in progressive creep strain development relative to fatal failure strain level.",

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author = "{van den Oever}, Martien and Karin Molenveld",

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T1 - Creep deflection of Wood Polymer Composite profiles at demanding conditions

AU - van den Oever, Martien

AU - Molenveld, Karin

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AB - Durability and low maintenance make Wood Polymer Composite (WPC) profiles popular in decking applications. EN 15534-4 specifies minimum performance levels to guarantee WPC quality. However, despite such quality specifications, occasionally high temperature creep issues are reported. This paper evaluates the creep performance of three commercial WPC decking profile grades. All three WPC grades meet the requirements specified in EN 15534-4. Nevertheless, at slightly more demanding load conditions, some WPC samples fail around the creep deflection limits specified in the standard, and which are supposed safe. Reference outdoor testing in the moderate climate of the Netherlands shows creep deflection rates which are expected to lead to fatal failure of these WPC samples in a couple of years. It is concluded that predictive testing requires insight in progressive creep strain development relative to fatal failure strain level.

KW - Creep

KW - Outdoor condition

KW - Strain

KW - Testing standard

KW - Wood polymer composite (WPC)

U2 - 10.1016/j.cscm.2019.e00224

DO - 10.1016/j.cscm.2019.e00224

M3 - Article

AN - SCOPUS:85060942959

SN - 2214-5095

VL - 10

JO - Case Studies in Construction Materials

JF - Case Studies in Construction Materials

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ER -

Creep deflection of Wood Polymer Composite profiles at demanding conditions

Abstract

Keywords

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Projects

OPEN-BIO: Opening bio-based markets via standards, labelling and procurement

Open Bio AF-EU-14008 (BO-21.04-001-016)

Cite this