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23 records – page 1 of 3.

Adhesive Bonding of Structural Hardwood Elements

https://research.thinkwood.com/en/permalink/catalogue75
Year of Publication
2015
Topic
Mechanical Properties
Serviceability
Moisture
Material
Glulam (Glue-Laminated Timber)
CLT (Cross-Laminated Timber)
Application
General Application

Air-Coupled Ultrasound Propagation and Novel Non-Destructive Bonding Quality Assessment of Timber Composites

https://research.thinkwood.com/en/permalink/catalogue13
Year of Publication
2012
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
General Application

Bending and Bonding Properties of Mixed-Species Glued Laminated Timber from Merpauh, Jelutong and Sesendok

https://research.thinkwood.com/en/permalink/catalogue2434
Year of Publication
2019
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Wood Building Systems

Bending and Rolling Shear Properties of Cross-Laminated Timber Fabricated with Canadian Hemlock

https://research.thinkwood.com/en/permalink/catalogue2407
Year of Publication
2019
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Walls
Floors
Wood Building Systems

Bond Behavior Between Softwood Glulam and Epoxy Bonded-In Threaded Steel Rod

https://research.thinkwood.com/en/permalink/catalogue450
Year of Publication
2015
Topic
Design and Systems
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
General Application
Author
Ling, Zhibin
Liu, Weiqing
Lam, Frank
Yang, Huifeng
Lu, Weidong
Publisher
American Society of Civil Engineers
Year of Publication
2015
Country of Publication
United States
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
General Application
Topic
Design and Systems
Mechanical Properties
Keywords
Bonding Behavior
Failure Modes
Joints
Load Capacity
Softwood
Threaded Steel Rod
Pull-Pull
Language
English
Research Status
Complete
Series
Journal of Materials in Civil Engineering
Summary
This study aims to develop an improved understanding of the interfacial bond behavior of softwood glulam joints with bonded-in threaded steel rod. A total of 39 glulam joints with bonded-in single-threaded steel rods were tested to failure in the pull-pu...
Online Access
Free
Resource Link
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Bonding Of Various Wood Species – Studies About Their Applicability In Glued Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue463
Year of Publication
2014
Topic
Connections
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
General Application
Author
Jiang, Yuan
Schaffrath, Jörg
Knorz, Markus
Winter, Stefan
Publisher
Springer, Dordrecht
Year of Publication
2014
Country of Publication
Netherlands
Format
Book Section
Material
Glulam (Glue-Laminated Timber)
Application
General Application
Topic
Connections
Mechanical Properties
Keywords
Gluability
Softwoods
Hardwoods
Adhesives
Extractives
Wettability
Bonding Strength
Durability
Joints
Language
English
Research Status
Complete
Series
Materials and Joints in Timber Structures
ISBN
978-94-007-7811-5
Online Access
Payment Required
Resource Link
Less detail

Bonding Performance of Adhesive Systems for Cross-Laminated Timber Treated with Micronized Copper Azole Type C (MCA-C)

https://research.thinkwood.com/en/permalink/catalogue2200
Year of Publication
2020
Topic
Design and Systems
Connections
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Lim, Hyungsuk
Tripathi, Sachin
Tang, Juliet
Publisher
ScienceDirect
Year of Publication
2020
Country of Publication
Netherlands
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Design and Systems
Connections
Keywords
Preservatives
Micronized Copper Azole-Type C
Bonding Performance
Delamination Tests
Block Shear Tests
Adhesives
Block Shear Strength
Wood Failure Percentage
Language
English
Research Status
Complete
Series
Construction and Building Materials
Summary
The feasibility of manufacturing cross-laminated timber (CLT) from southern yellow pine (United States grown) treated with micronized copper azole type C (MCA-C) preservative was evaluated. Lumber (2x6 visually graded no. 2 boards) was treated to two retention levels (1.0 and 2.4 kg/m3 ), planed to a thickness of 35 mm, and assembled along with an untreated control group using three adhesive systems following product specifications: melamine formaldehyde (MF), resorcinol formaldehyde (RF), and one-component polyurethane (PUR). Block shear and delamination tests were conducted to examine the bonding performance in accordance with ASTM D905 and ASTM D2559 Standards, respectively. One-way analysis of variance and Kruskal-Wallis H test were conducted to evaluate the effects of preservative retention and adhesive type on block shear strength (BSS) and wood failure percentage (WFP). Regardless of adhesive type, the 1.0 kg/m3 retention treatment significantly lowered BSS compared to the untreated control. CLT composed of the laminations treated at 2.4 kg/m3 maintained BSS when PUR and RF were used but not MF. The average WFP of each CLT configuration ranged from 89% to 99%. The untreated CLT specimens did not experience any delamination under accelerated weathering cycles. The delamination rates of the treated specimens assembled using MF and RF increased with the preservative retention level, while PUR provided delamination rates less than 1% to the laminations treated at both levels. These combined data suggest that, under the conditions tested, PUR provided overall better bonding performance than MF and RF for MCA-C treated wood.
Online Access
Free
Resource Link
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Bonding Strength Test Method Assessment for Cross-Laminated Timber Derived Stressed-Skin Panels (CLT SSP)

https://research.thinkwood.com/en/permalink/catalogue1404
Year of Publication
2017
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
General Application

Characterizing High Temperature Performance of Structural Adhesives

https://research.thinkwood.com/en/permalink/catalogue2258
Topic
Fire
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Organization
Université Laval
Country of Publication
Canada
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Topic
Fire
Keywords
Bonding
Research Status
In Progress
Notes
Contact: Christian Dagenais, Université Laval
Summary
Structural engineered woods require the use of previously evaluated structural adhesives in accordance with a variety of standard methods (ASTM D2559, ASTM D7247, CSA O112.9, CSA O112.10, CSA O177, etc.). The basic assumption is that a bonded engineered wood product will have a performance equivalent to, or better than, the non-bonded product it replaces, regardless of the conditions of use (dry, wet, fire, etc.). Nevertheless, the results of cross-laminated wood (CLT) fire tests have shown that the requirements currently imposed on adhesives do not allow to limit lamellae detachment when CLT is exposed to fire. Traditionally, this behavior is not observed for glulam. It is essential to review the classification and performance criteria imposed on adhesives by submitting them to the various tests currently standardized. The analysis of the results may also be used to develop a new test method for adhesives exposed to high temperatures, depending on the anticipated use of the engineered wood product.
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Comparison of Newly Proposed Test Methods to Evaluate the Bonding Quality of Cross-Laminated Timber (CLT) Panels by Means of Experimental Data and Finite Element (FE) Analysis

https://research.thinkwood.com/en/permalink/catalogue1360
Year of Publication
2016
Topic
Mechanical Properties
Connections
Material
CLT (Cross-Laminated Timber)
Application
General Application

23 records – page 1 of 3.