Skip to main content
SLU publication database (SLUpub) (stage, solr2:8983)

Abstract

The growing interest in renewable energy affects the demand for plywood in transportation and construction. However, fire safety demands frequently restrict its application as subfloors, roof sheathing, and wall panels. Moreover, using underutilized timber species like aspen is essential to maximizing the efficiency of wood resources. Hence, this study investigates the impact of fire retardant (FR)-treated aspen face veneer (AFV) thickness on the fire performance of combiplywood (ply) composed of 1.0 mm, 1.5 mm, and 2.0 mm AFVs and a 12 mm birch core. The FR consists of a novel fire retardant (FR) formulated from bisphosphonate acid and an alkanol amine. Results indicate that thicker AFV reduces plywood density, with a 5.7% decrease observed using 2.0 mm AFV compared to 1.0 mm. The FR treatment enhanced fire performance, particularly for 2.0 mm AFV. While both 1.5 mm and 2.0 mm AFV exhibited comparable total heat release (THR) and maximum average rate of heat release (MARHE), the 2.0 mm AFV demonstrated lower temperature transmission compared to thinner veneers. Notably, FR treatment reversed the fundamental protection time increase found with increasing AFV thickness in untreated panels, indicating a complicated interplay between FR and AFV on fire behavior. These findings suggest the promising potential of further developing FR treatments for plywood.

Keywords

Aspen; Fire retardant; Fire test; Heat release; Plywood; Veneer

Published in

Title: PROCEEDINGS OF THE 11TH EUROPEAN CONFERENCE ON WOOD MODIFICATION
Publisher: SPRINGER INTERNATIONAL PUBLISHING AG

Conference

11th European Conference on Wood Modification-ECWM, APR 15-16, 2024, Florence, ITALY

SLU Authors

UKÄ Subject classification

Wood Science

Publication identifier

  • DOI: https://doi.org/10.1007/978-3-031-99418-0_21
  • ISBN: 978-3-031-99417-3
  • eISBN: 978-3-031-99418-0

Permanent link to this page (URI)

https://res.slu.se/id/publ/145299