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Development of Multifunctional CLT
Cross Laminated Timber
Background and Purpose
CLT is a wood-based material created by laminating and bonding adjacent layers of wood veneer with their grain directions perpendicular to each other. As the active utilization of forest resources advances globally, the use of wood as a “mass,” exemplified by CLT (Cross Laminated Timber), is gaining attention. This research aims to develop multifunctional single components by maximizing the performance of each CLT lamina and adding functions such as structural strength, fire resistance, thermal insulation, humidity regulation, and aesthetic appeal.
Results
This research focuses primarily on improving fire resistance and thermal insulation performance. To date, performance enhancements have been achieved through techniques such as slitting laminates, perforating them, and inserting dissimilar laminates. In the most recent study, wood chips or recycled crusher run were filled into the intermediate laminate, followed by heating tests and thermal insulation tests. The wood chip specimens confirmed the potential for a new fire resistance mechanism that delays heat transfer into the laminate.
List of Research Topics
Master's Thesis
Development of Multifunctional CLT - Verification of Fire Resistance and Thermal Insulation Performance of Small-Piece Laminates Using Medium-Scale Test Specimens -
Development of Multifunctional CLT - Investigation of Highly Insulating, Self-Extinguishing Wooden Fire-Resistant Structural Members -
Development of Multifunctional CLT - Potential for Improving CLT Thermal Insulation Performance Using Processed Cedar Laminates -
Development of Multifunctional CLT - Comparative Verification of Fire Resistance Performance of CLT Using Processed Cedar Laminates and Heterogeneous Laminates
Development of Multifunctional CLT - Comparative Verification of Structural, Fire Resistance, and Thermal Insulation Performance of Integrated Multifunctional CLT Panels
Development of Multifunctional CLT - Comparative Verification of Fire Resistance Performance and Thermal Insulation Performance
Bachelor's Thesis
Development of Multifunctional CLT - Verification of Small-Piece Laminates
Development of Multifunctional CLT - Verification of Flame Arresting Behavior of Slow-Burning Insulation Layer -
Development of Multifunctional CLT - Potential for Improving Thermal Insulation Performance through Perforation Processing of Cedar Laminas -
Comparative Fire Resistance Experiments Toward Multifunctionalization of CLT
Experimental Study on Thermal Performance Toward Multifunctionalization of CLT
Multifaceted Considerations for Rational CLT Construction Methods
Multifaceted Considerations Toward Multifunctionalization of CLT
Peer-reviewed paper
Atsushi TAKANO,CARBON FOOTPRINT OF MASSIVE TIMBER CONSTRUCTION An assessment of the material production, construction and usestages of European reference buildings ,Journal of Environmental Engineering (Transactions of AIJ) , 2020 Volume 85 Issue 773 Pages 545-555
Taro MORI, Atsushi TAKANO, Wataru OSHIMA, Takeyoshi UEMATSU MEASUREMENT OF THERMAL PERFORMANCE OF CLT BUILDINGMADE FROM HOKKAIDO LARCH AIJ Journal of Technology and Design 2018 Volume 24 Issue 58 Pages 1107-1112
Atsushi Takano, Hiroshi Fukuyama . Case studies on simpler and robust wood construction . Proceedings of World conference on timberengineering 2018 1 - 6 2018,8
