Some important properties of strandboard manufactured from andong bamboo (Gigantochloa pseudoarundinacea)

Abstract

Andong bamboo (Gigantochloa pseudoarundinacea) is one of the most important bamboo species widely planted in West Java, Indonesia, and play a prominent role in the rural economy. The bottom and the middle parts of Andong bamboo culms are suitable for laminated bamboo lumber raw material. To improve the efficiency of bamboo utilization, the upper part of Andong bamboo culms were use as raw material for strandboard production. The objective of the study was to determine the effect of strand length and specific pressure on the properties of bamboo strandboard. Laboratory scale of bamboo strandboards were fabricated using three different strand lengths (75, 100, and 150 mm), two different specific pressures applied (25 kg/cm2 and 30 kg/cm2) and glued with phenol formaldehyde with the targeted density of 0.75 g/cm3. Some physical and mechanical properties of bamboo strandboards were determined. Results showed that the average physical properties of bamboo srandboards were 9.3% (moisture content), 0.76 g/cm3 (density), 3.1% (thickness swelling), 1.6% (wide expansion), and 25.1% (water absorpsion). The average mechanical properties of bamboo srandboards were 760.5 kgf/cm2 (MOR), 92.3 103kgf/cm2 (MOE), 5.6 kgf/cm2 (IB), and 56.5 kgf (screw holding power). Some physical and mechanical properties of bamboo strandboard were significantly affected by strand length and specific pressure.

Properties of oriented strand boards made from two Indonesian bamboo species at different pressure levels and strand lengths

“…The average IB values of the manufactured OSB ranged from 0.53 to 0.79 MPa (Table 5). This result was similar to those obtained for betung bamboo-based OSB (Febrianto et al 2012) and andong bamboo-based strand board (Sulastiningsih et al 2019). The comparable results from this study with andong-bamboo strand board from a previous study (Sulastiningsih et.al.…”

“…The result obtained was very similar to the WA of andong bamboo-based strand board bonded with phenol-formaldehyde, which ranged from 22.8% to 29.6% (Sulastiningsih et al 2019); or the WA of moso bamboobased OSB bonded with MDI (which was 23.6%) at the targeted density of 0.73 g/cm 3 (Sumardi and Suzuki 2014). The comparable result with the andong-bamboo strand board reported by Sulastiningsih et. al.…”

“…The interaction between the strand lengths and pressure levels significantly increases the MOE values of bamboo strand boards (Sulastiningsih et al 2019). Different compression ratios during bamboo-OSB manufacture also affected the panels' mechanical properties (Maulana et al 2020).…”

Physical and Mechanical Properties of Oriented Flattened Bamboo Boards from Ater (Gigantochloa atter) and Betung (Dendrocalamus asper) Bamboos

“…Generally, the higher moisture content will reduce the strength of the materials (Tsoumis 1991). Similar moisture content was found by Sulastiningsih et al (2019), which shows OSB made from Gigantochloa pseudoarundinaca with different strand lengths ranging from 9-9.7%. Another study by Sumardi et al (2022) showed that the MC of LBL zephyr and ply-bamboo zephyr were 11.74% and 11.63%, respectively.…”

The status of bamboo research and development for sustainable use in Indonesia: A systematic literature review

“…The topic of bamboo properties was the third most published paper. There were identified 26 papers covered the aspects of; properties and mechanical properties of several species of bamboo [85][86][87][88][89][90][91] as well as the properties of bamboo products as a building construction material [92][93][94][95][96][97]. The research on bamboo as an infrastructure material, namely; bridges [98,99], hardeners or foundation bases of roads [100][101][102], and walls for wave and water blocks [103][104][105] was also published.…”