Theses and Dissertations

Advisor

Franca, Tamara

Committee Member

Quin Jr., Franklin

Committee Member

Stokes, C. Elizabeth

Date of Degree

5-15-2026

Original embargo terms

Immediate Worldwide Access

Document Type

Graduate Thesis - Open Access

Major

Sustainable Bioproducts

Degree Name

Master of Science (M.S.)

College

College of Forest Resources

Department

Department of Sustainable Bioproducts

Abstract

The growing use of cross-laminated timber (CLT) in sustainable construction necessitates improved protection against biological deterioration. This study evaluates the fungal resistance of Southern Pine CLT fabricated from lumber pre-treated with micronized copper azole (MCA). Panels were produced under industrial pressing conditions, and durability was assessed using a modified American Wood Protection Association (AWPA) E10-22 soil block test against four brown-rot fungi. Results showed significant decay reduction for Coniophora puteana and Neolentinus lepideus, while protection was less effective against Gloeophyllum trabeum and Rhodonia placenta. Findings indicate that pre-treatment enhances preservative distribution but does not fully prevent decay in high-hazard environments. This research establishes a framework for evaluating treated CLT and supports the development of hybrid protection systems and improved testing methods for long-term durability in moisture-prone applications.

Sponsorship (Optional)

USDA Forest Service, Wood Innovations Grant

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