Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Lim, Hyungsuk (Thomas)

Committee Member

Li, Minghao

Committee Member

Tang, Juliet D.

Committee Member

Barnes, H. Michael

Date of Degree

8-9-2019

Original embargo terms

Worldwide

Document Type

Graduate Thesis - Open Access

Major

Sustainable Bioproducts

Degree Name

Master of Science

College

College of Forest Resources

Department

Department of Sustainable Bioproducts

Abstract

This research study investigates the effect of micronized copper azole type C (MCA-C) preservative system on the rolling shear (RS) properties of CLT. In the first part of research, bonding performance of CLT panels treated at two retention levels, 0.96 kg/m3 and 2.5 kg/m3, were evaluated. Three structural adhesive systems, melamine formaldehyde (MF), resorcinol formaldehyde (RF) and one-component polyurethane (1C-PUR) were used to assemble visually graded No. 2 2×6 southern yellow pine (SYP) lumber while manufacturing CLT panels. For treated CLT panels, 1C-PUR provides better bonding performance test results. The RS properties of MCA-C treated CLT panels were studied in the second part of the research. The CLT panels were subjected to out-of-plane loading according to the EN 16351 standard. The mean values of RS strength and modulus of treated CLT were 1.89 MPa and 289.4 MPa respectively.

URI

https://hdl.handle.net/11668/14597

Comments

Cross-laminated timber (CLT)||micronized copper azole type C (MCA-C)||Rolling shear properties||Bonding properties

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