Effects of densification on low-density plantation species for cross-laminated timber

Feng, Tan Yu; Liew, Kang Chiang

doi:10.1063/5.0029041

Cited by 7 publications

(7 citation statements)

References 4 publications

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“…Other studies also showed the same trend between the density and bending strength of CLT (Corpataux et al 2020;Feng and Chiang 2020;Kim 2020). Panels with higher density will have the capability to withstand large amounts of stress, thereby reducing bending failure in the wood (Feng and Chiang 2020). However, the overall sample has lower bending strength than the solid wood in Figures 15 (e) and (f).…”

Section: Mechanical Properties Of Cltsupporting

confidence: 54%

“…This shows a positive correlation between the density and MOR of CLT. Other studies also showed the same trend between the density and bending strength of CLT (Corpataux et al 2020;Feng and Chiang 2020;Kim 2020). Panels with higher density will have the capability to withstand large amounts of stress, thereby reducing bending failure in the wood (Feng and Chiang 2020).…”

Section: Mechanical Properties Of Cltmentioning

confidence: 52%

“…In addition, the density value of MMM CLT tends to increase compared to the air-dry and kiln-dry density of mangium wood. This has the potential to occur in low-medium-density wood due to the densification process during CLT compression, which impacts improving mechanical quality (Feng and Chiang 2020). Despite having different densities, each CLT has a more stable MC and volume shrinkage in Fig.…”

Section: Physical Properties Of Cltmentioning

confidence: 99%

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Physical and Mechanical Properties of Cross-Laminated Timber Made of a Combination of Mangium-Puspa Wood and Polyurethane Adhesive

Hariz

Hadi

Maulana³

et al. 2023

J. Sylva Lestari

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This study aimed to evaluate the physical and mechanical properties of cross-laminated timber (CLT) characteristics from mangium (Acacia mangium) and puspa (Schima wallichii) woods and their combination using polyurethane (PU 1.2) adhesives. The manufacture of CLT began with basic adhesive characterization and thermo-mechanical analysis. Wood material’s physical and chemical properties were also tested with its response to the PU 1.2 wettability. The CLT (100 ´ 30 ´ 3.60) cm3 was manufactured with 160 g/m2 glue spread at a pressure of 0.80 MPa for 200 minutes. The CLT panels were characterized refers to the JAS 3079 standard. The results show that PU 1.2 had a gelatination time of 182.1 minutes at 25°C, was able to form urethane groups, and experienced an increase in storage modulus at 35°C. Mangium and puspa woods have different physical and chemical properties, but they interact similarly with PU 1.2 wettability. Puspa CLT panel has a higher density than mangium but lower dimensional stability. The bending mechanical properties of hybrid puspa-mangium-puspa CLT were able to match puspa CLT and have one sample of shear strength that met the JAS 3079 standard in both grain directions. Therefore, hybrid puspa-mangium-puspa CLT has the potential to be developed to improve its dimensional stability and mechanical properties. Keywords: Acacia mangium, cross-laminated timber, layer combination, polyurethane adhesive, Schima wallichii

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Section: Mechanical Properties Of Cltsupporting

confidence: 54%

Section: Mechanical Properties Of Cltmentioning

confidence: 52%

Section: Physical Properties Of Cltmentioning

confidence: 99%

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Physical and Mechanical Properties of Cross-Laminated Timber Made of a Combination of Mangium-Puspa Wood and Polyurethane Adhesive

Hariz

Hadi

Maulana³

et al. 2023

J. Sylva Lestari

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“…These findings were also similar to the density values of sengon solid wood-0.24 g/cm 3 to 0.49 g/cm 3 -with an average of 0.33 g/cm 3 (Martawijaya et al, 2005). The application of mechanical force with appropriate moisture and temperature reduced the porosity of the wood structure, as observed in Feng and Chiang (2020). The study revealed that CLT manufactured from densified sengon had higher MOR and MOE values in comparison to the undensified sengon CLT (Feng and Chiang, 2020).…”

Section: Physical Properties Of Cross Laminated Timber (Clt)mentioning

confidence: 76%

“…Phenol resorcinol formaldehyde (PRF) was used to manufacture three-layered batai CLT (Liew and Maining, 2021), hybrid-wooden-laminated timber (Choi et al, 2018), and tropical hybrid CLT (Galih et al, 2020). The double spread of water-based polymer isocyanate was applied to produce sengon CLT (Apriliana, 2012), resorcinol was used to manufacture domestic larch CLT (Song and Hong, 2016), polyvinyl acetate to bond densified batai CLT (Feng and Chiang, 2020), polyurethane adhesive to manufacture southern pine CLT and mixed Japanese Larch and yellow poplar CLT (Hindman and Bouldin, 2015;Song and Kim, 2022). The primary drawbacks of synthetic adhesives are that they are expensive (Santoso et al, 2014) and pose potential health risks due to their enormous formaldehyde emission (Yauk et al, 2020).…”

mentioning

confidence: 99%

Performance of Six-Layered Cross Laminated Timber of Fast-Growing Species Glued with Tannin Resorcinol Formaldehyde

Trisatya¹,

Santoso²,

ABDURRACHMAN³

et al. 2023

J. Korean Wood Sci. Technol.

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The National Socioeconomic Survey revealed that the housing shortage/backlog in Indonesia increased from 11.4 million houses in 2015 to 12.75 million houses in 2020, while it was targeted to reduce the housing backlog to 5 million in 2024 (MOPWH, 2022). Timber supply for construction materials could, therefore, be expected to increase with the increase in demand for new houses. Timber consumption at the household level for the construction of roofs and buildings were 0.008 m 3 /m 2 -0.016 m 3 /m 2 and 0.0035 m 3 /m 2 −0.13 m 3 /m 2 , respectively (Abdulah et al., 2020). The study further revealed that solid wood was the most consumed construction

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Production processes, material properties and applications of densified wood: an overview

Paul,

Shukla,

Kelkar

et al. 2024

J Indian Acad Wood Sci

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Effects of densification on low-density plantation species for cross-laminated timber

Cited by 7 publications

References 4 publications

Physical and Mechanical Properties of Cross-Laminated Timber Made of a Combination of Mangium-Puspa Wood and Polyurethane Adhesive

Physical and Mechanical Properties of Cross-Laminated Timber Made of a Combination of Mangium-Puspa Wood and Polyurethane Adhesive

Performance of Six-Layered Cross Laminated Timber of Fast-Growing Species Glued with Tannin Resorcinol Formaldehyde

Production processes, material properties and applications of densified wood: an overview

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