The Movement of Boron Compound by Infusion Method and Combination of Injection and Bandage-Wrapping

Abstract

The existing preservation methods are difficult to be applied to a large dimension log which is needed for making traditional wooden ship 'Jalur' in Riau Province. Novel techniques to provide the use of readily available species to replace traditional species alternative were investigated. These included infusion and a combination of injection and bandage-wrapping methods for preserving living trees of Balam (Macaranga conifera (Rchb.f. & Zoll.) Müll.Arg.) and Bintangor (Calophyllum soulattri Burm.f.). Water-based boron compounds were applied as wood preservatives. In total, 18 discs from the bottom, middle, and top of four trees and two controls were used. Trees undergoing treatment were also used to see how wood anatomical structure might affect the boron penetration. The overall aim was to identify the best method for use in Jalur manufacturing. The results showed that in infused Balam tree where the hose position for the preservative intake was deep (10-15 cm from the bark), no boron compound was observed in the outer sapwood. Combination of injection and bandage-wrapping method gave higher percentage of boron penetration at bottom and middle of Balam tree. However, infused Bintangor showed 100% boron penetration. The larger vessel diameter, the absence of tyloses, and the simple perforation plates in Bintangor wood were likely to have contributed to the higher penetration of boron. The combination of bandage-wrapping and infusion, or alternatively by infusing the living trees close to the bark, and at as low as position in the stem gives better protection when treatments are applied to living trees.

Physical and Mechanical Properties of Light Red Meranti Treated with Boron Preservatives

“…shows that the MC of all the samples is in air-dried condition (~12%) before proceeding with the experiment (Fidan and Adanur, 2019). This is to ensure that the samples experience the same dimensional changes, and no defects are caused by excessive shrinkage when oven dried (Damayanti et al, 2020). It should be noted that the samples were oven-dried in an oven before the impregnation process to empty the internal spaces of wood for maximum retention and even distributed of solution across the sample (Bergman, 2021).…”

Efektivitas Pengawetan Dengan Teknik Infus Dan Bandage Pada Pohon Balam Terhadap Serangan Rayap Kayu Kering

“…Kegiatan ini dilaksanakan di Tepian Narosa Teluk Kuantan, Kabupaten Kuantan Singingi (Kuansing), Provinsi Riau. Jalur adalah perahu yang dibuat dari kayu komersial yang kuat dan tahan lama yang berasal dari famili Dipterocarpaceae (Damayanti, Sribudiani, Somadona, Djarwanto, Satiti, Tarmidi, Amin, Yusuf, Syafrinal, Arsyad, Sulaeman, & Pramasari, 2020). Jalur mempunyai dimensi panjang 25-40m dan lebar bagian tengah antara 1,3-1,5m.…”

“…Dalam tulisan ini kayu mahang ditulis sebagai kayu balam, sebagaimana penyebutan oleh masyarakat Kuantan Singingi. Balam dikelompokkan ke dalam kelas kuat I, kelas awet II-IV (Damayanti et al 2020), dan berat jenis berkisar antara 0,43-0,69 (Sribudiani, Somadona, Sulaeman, Yusuf, Amin, Tarmadi, Damayanti, & Djarwanto, 2019). Saat ini kayu balam yang mempunyai diameter besar masih banyak ditemukan di Provinsi Riau.…”

“…Proses aplikasi bahan pengawetan ini dilakukan mulai dari bulan April sampai dengan Agustus 2019. Penjelasan secara rinci mengenai kedua teknik pengawetan ini disajikan pada tulisan Damayanti et al (2020). Secara ringkas tahapan pengawetan pohon berdiri menggunakan metode infus sebagai berikut: Tahapan dimulai dari pembuatan larutan bahan pengawet kayu dengan mencampurkan 1-5 kg serbuk bahan pengawet kayu grade teknis ke dalam 50-150 L akuadest, kemudian dipanaskan agar bahan pengawet kayu larut dengan sempurna.…”