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Individual Highlight

Evaluating Fire Performance of Adhesives used in Cross-Laminated Timber

Photo of Small scale test of an adhesive bond in a high temperature chamber built around a test frame to study the performance of adhesives under load and temperature.Small scale test of an adhesive bond in a high temperature chamber built around a test frame to study the performance of adhesives under load and temperature.Snapshot : Our research focuses on the study of how adhesives used to hold wood composites together perform under fire to ensure strong, fire-safe construction.

Principal Investigators(s) :
Bechle, NathanRammer, Douglas R.
Hasburgh, Laura, Ph.D., P.E.Zelinka, Samuel L.
Research Location : Madison, WI
Research Station : Forest Products Laboratory (FPL)
Year : 2020
Highlight ID : 1672

Summary

This study is part of a research project examining fire risk in cross laminated timber (CLT) buildings. “Delamination”, a major concern for CLT fire safety, can occur when the adhesive bondline fails in the panel before it chars which can lead to additional fuel for fire regrowth. Understanding the mechanical strength and stiffness of the adhesive bond under elevated temperature is one of the fundamental steps towards better understanding delamination. The current understanding of delamination is based off of full-scale tests of CLT structures. We are developing small scale tests that can be performed in a laboratory to cheaply screen adhesives and better understand fire risk with different adhesives.

Forest Service Partners

External Partners

  • N/A
  • Colorado School of Mines
  • Oregon State University