Shear Block Test Performance of Melunak and Mengkulang Parallel to Glueline

Malek, Nor Jihan Abd; Al-Afif, Abdullah Abdulrahman Ahmed; Hassan, Rohana

doi:10.1088/1757-899x/507/1/012015

Cited by 2 publications

(2 citation statements)

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“…This difference could be attributed to the density of the specimens, as hornbeam wood demonstrated a higher density compared to poplar and paulownia wood. These findings align with the results reported by Abd Malek et al (2019), which indicated a positive correlation between density and shear strength parallel to the grain of solid wood. The shear strength in blocks made of hornbeam + hornbeam was also about 2 and 3.5 times higher than that of poplar + poplar and paulownia + paulownia wood, respectively.…”

Section: Shear Block Testsupporting

confidence: 93%

“…Sulastiningsih et al (2020) mentioned that incorporating jabon or mahoni wood veneers in oil palm LVL improved its physical and mechanical properties. When it comes to LVL used in exterior applications, a major concern is the risk of layers losing bond strength and delamination when exposed to atmospheric impacts and water absorption (Abd Malek et al 2019;Juciene et al 2023). Moisture content and wood species can affect on the bonding strength of glued wood.…”

Section: Introductionmentioning

confidence: 99%

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Performance of laminated veneer lumber panels from fast-growing species with different layering arrangements

Arabi,

Hazrati,

Rostampour-Haftkhani

2024

BioRes

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This study investigated the effect of various layer arrangements and their impact on the properties of laminated veneer lumber (LVL). Seven different layer arrangements (CCCCCCC, DDDDDDD, PPPPPPP, CDDDDDC, CPPPPPC, CDDCDDC, CPPCPPC, CDCDCDC, CPCPCPC, CCDDDCC, CCPPPCC, CCDCDCC, and CCPCPCC) were used in the manufacturing of the LVL, with each arrangement represented by a combination of the three wood species: hornbeam (C), paulownia (P), and poplar (D). The veneers were bonded with a polyurethane adhesive and pressed under 1 MPa pressure. The physical and mechanical properties of the laminated veneer lumber, including modulus of rupture, modulus of elasticity, block shear, delamination, and swelling, were measured under both dry and cyclic conditions (boil and dry). The modulus of rupture and modulus of elasticity of the LVLs increased when the proportion of hornbeam in the lamination increased. In the cyclic boil-dry condition, the laminated veneer lumbers with the configurations CPCPCPC and CDCDCDC showed the best structural performance. Furthermore, the study found that when one or two upper layers of poplar and paulownia were replaced with hornbeam layers, cracks were observed in the laminated veneer lumber samples. However, when the layers of poplar and paulownia were replaced with hornbeam alternately, no cracks were observed after saturating the laminated veneer lumber with water. The utilization of an alternating arrangement of poplar and paulownia layers with hornbeam in LVL can be used as an effective and cost-efficient approach for enhancing and reinforcing the LVL performance.

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Section: Shear Block Testsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%