Your search resulted in 29 documents. Displaying 25 entries per page.
Modification of Beech Wood by Furfurylation with Chestnut (Castanea sativa) or Acacia (Acacia mearnsii) Tannins for Protection Against Subterranean Termites
2025 - IRG/WP 25-30832
…of tannins extracted from chestnut (Castanea sativa) and Acacia (Acacia mearnssi) wood species, using them as a copolymer with FA. The aims to replace as much FA as possible while maintaining performance and comparing this method to conventional furfurylation impregnation process, in term of termite resistance. EN…
J V Dorini-Falavinha, K Candelier, P H Gonzales De Cademartori, C Gérardin-Charbonnier
Adequate preservative treatment of kiln dried Eucalyptus camaldulensis and Acacia mangium for tropical and subtropical wood poles
1996 - IRG/WP 96-40075
The Eucalyptus camaldulensis and Acacia mangium round timbers kiln-dried at EMC and full cell pressure treated with CCA-C ensured requisite penetration and adequate dry retention (30 kg/m³ or 4% w/w). The sufficient inherent strength, seasoning property, treatability of sapwood and…
A K Lahiry
Influence of Grain Direction on Penetration, Retention, and Leaching of CCA(C) in Sapwood and Heartwood of Kenyan-Grown Eucalyptus saligna and Acacia mearnsii
2007 - IRG/WP 07-40383
…sapwood and heartwood samples of Eucalyptus saligna and Acacia mearnsii. In both sapwood and heartwood of the two species, the results showed a consistent pattern: Transverse > Radial > Tangential. Whereas penetration, retention, and leaching were significantly high in the transverse grain direction for…
R Venkatasamy
Preservative technique of three commercially important timber species –
Sissoo (Dalbergia sissoo), Akasmoni (Acacia auriculiformis) and Ghoraneem (Melia azedarach) of Bangladesh
2005 - IRG/WP 05-40299
…in rural and urban areas of Bangladesh. Dalbergia sissoo, Acacia auriculiformis and Melia azedarach, locally known as Sissoo, Akasmoni and Ghoraneem respectively are three important timber species of Bangladesh. These are used for different purposes normally without preservative treatment. Heartwood of Sissoo,…
M R Bulbul, M O Hannan, P K Sarker, A A Mahafuz, G N M Ilias
Protection and efficient utilization of plantation grown lesser-known timbers of arid region in India - Acacia tortilis, Prosopis juliflora and Prosopis cineraria
2005 - IRG/WP 05-40321
…pressure on three plantation grown timber species viz. Acacia tortilis, Prosopis juliflora and Prosopis cineraria have shown encouraging results in enhancement of shelf life by protection of wood against wood rot fungus, pests and insects. These species are grown in arid/semi arid region for sand dune…
S H Jain, H Kumar, R Arya, R L Srivastava
Differential retention and leaching of CCA (C) in sapwood and heartwood of Kenyan-grown blue gum (Eucalyptus saligna) and black wattle (Acacia mearnsii)
2005 - IRG/WP 05-30371
…blue gum (Eucalyptus saligna) and black wattle (Acacia mearnsii) were tested under laboratory conditions. Clear samples (100mm x 30mm x 40mm) were removed from the sapwood and heartwood of sampled defect-free and sound plantation trees of the two species. These were separately air-dried to 15% MC,…
R Venkatasamy
The effects of pH on leaching of copper-chrome-arsenate (CCA) from pressure-treated Kenyan-grown Eucalyptus saligna and Acacia mearnsii: Initial findings.
2002 - IRG/WP 02-30298
…from pressure-treated Kenyan-grown Eucalyptus saligna and Acacia mearnsii were tested under laboratory conditions. Small samples of the two species (100mm x 30mm x 40mm) were smooth sawn from 8-year old trees to represent equal amounts of both sapwood and heartwood, air-dried to 12% moisture content, end-sealed,…
R Venkatasamy
Unlocking the potential of tropical fast-growing hardwood species
2023 - IRG/WP 23-11010
…cadamba), another interesting species to explore is acacia (Acacia mangium). Physiologically, fast growing wood species are different from long rotation hardwoods with regard to their quality, i.e. their resistance to biodeterioration. In this study, the natural durability of the forementioned fast growing…
S Fauziyyah, R Wimmer, C Brischke
Laboratory Study of Relative Leachability of Chromated Copper Arsenate Preservative from Treated Woods among Soil Types of Sarawak
2014 - IRG/WP 14-50307
…engkabang undifferentiated wood (Shorea macrophylla) and mangium heartwood (Acacia mangium) materials in shallow soil-burial according to the AWPA E20-04 laboratory test methodology. Statistically significant (P<0.05) variations were detected between wood species as well as leaching of CCA and its component heavy…
A H H Wong, P K F Chong
Fixation and leaching characteristics of Malaysian tropical hardwoods treated with CCA-C
2012 - IRG/WP 12-50289
…preservative were examined. The species evaluated were Acacia (Acacia mangium), Bintangor (Calophyllum sp.), Geronggang (Cratoxylon arborescens), Medang (Litsea sp.), Meranti rambai daun (Shorea acuminata), Putat (Planchonia sp.), Ramin (Gonystylus sp.) and Simpoh (Dillenia sp.). The softwood radiata pine (Pinus…
S Salim, S Shahomlail, Z Ashaari, Yong-Seok Choi, Gyu-Hyeok Kim
Moisture adsorption isotherms of wood studies using a dynamic vapour sorption apparatus
2009 - IRG/WP 09-20398
Five types of wood including two Malaysian hardwoods acacia mangium (Acacia mangium) and sesenduk (Endospermum malaccense), two temperate softwoods, Sitka spruce (Picea sitchensis), radiata pine (Pinus radiata) and Accoya (commercially modified wood) were studied to determine their moisture sorption behaviour…
J Zaihan, C A S Hill, S Curling
Needs for wood durability research on planted tree species in the tropics
2008 - IRG/WP 08-10651
…by an accelerated decay test according to JIS Z2101 in Acacia species, Melaleuca species, and Tectona grandis from the sapwood to the heartwood. Weight losses of the examined heartwood indicated that A. auriculiformis, hybrid Acacia and T, grandis were classified into moderately durable, A. mangium was slightly…
K Yamamoto, T Toma, Ngo Duc Hiep, Nguyen Trong Nhan
Durability of timber from exotic species against termite attack in Indian conditions
2007 - IRG/WP 07-10629
Exotic trees species, Acacia mangium Willd. and A. auriculiformis A. Cunn. ex Benth. and their hybrid are widely grown in India for multiple uses including use as timber. It is essential to know the natural durability of timbers against termites for predicting the service life of…
O K Remadevi, R Muthukrishnan
Laboratory Leaching Tests to Study the Effects of Post-Treatment Storage Periods on CCA Leachability and Fixation in Treated Permeable and Refractory Malaysian Hardwoods
2006 - IRG/WP 06-50240
…malaccensis) and Perah (Elateriospermum tapos), refractory Acacia mangium] were treated with CCA to target retention of 5.6 kg/m3, immediately stored to fix at ambient conditions for 0 and 48 hours, 1, 2 and 4 weeks, followed by a 2 weeks leaching test to determine cumulative leaching losses of copper (Cu), chromium…
A H H Wong, H C Lai, N P T Lim
Developing a Novel Bio-based PF Resin as Wood Preservative and Explore its Synthesis Route Using RSM Methodology
2025 - IRG/WP 25-41046
…– Japanese cedar (Cryptomeria japonica), Formosa acacia (Acacia confusa), and a mixed sawdust blend representing common industrial wood waste. To systematically evaluate the effects of critical process variables on the liquefaction outcome, we employed response surface methodology (RSM) with a three-factor,…
H-C Ye, Y-C Wu, T-H Lin, P-Y Kuo
Termite resistance of Malaysian and exotic woods with plantation potential: Laboratory evaluation
1998 - IRG/WP 98-10280
…islands. Species included in the present report are: acacia (Acacia mangium), batai (Albizia falcataria), casuarina pine (Casuarina equisetifolia), Araucarian pine (Araucaria cunninghamii), sentang (Azadirachta excelsa), both Malaysian-grown and Burmese-grown teak (Tectona grandis), kempas (Koompassia…
J K Grace, A A H Wong, C H M Tome
Termite resistance of Malaysian and exotic woods with plantation potential: Field evaluation
1998 - IRG/WP 98-10289
…Malaysian-grown and Burmese material), Hevea brasiliensis, Acacia mangium, Albizia falcataria, Araucaria cunninghamii, P. sylvestris, Koompassia malaccensis and K. excelsa. After 28 days, it was found that the results of the subterranean termite resistance test are consistent with the known/expected termite…
A H H Wong, J K Grace, L H Kirton
An overview of recent studies involving the thermal modification of hardwood species
2019 - IRG/WP 19-40869
…of a range of species, such as oak, teak, meranti and acacia. The thermal modification, based on the ThermoWood® principle, was carried out at temperatures 160 °C, 180 °C and 210 °C. Results within relate to the chemical composition of the species and noted colour variations as a result of treatment.…
D Jones, M Gaff, F Kacik
Pest and pathogens threaten the sustainability of plantation forestry: Global research collaboration will define the future
2018 - IRG/WP 18-50341
…dominated by intensively managed stands of Pinus, Populus, Acacia and Eucalyptus species. The greater proportion of these plantations has been established in areas where the trees are non-native and have thus been separated from their natural enemies. In all documented cases, these plantations have initially been…
M Wingfield
Some studies on natural resistance of different trees and prevention of infestation by termites through use of industrial effluents at Karor, Layyah, Pakistan
2008 - IRG/WP 08-10637
…/susceptibility in woods of Jaman (Syzygium cumini), Kikar (Acacia nilotica Willd.), Shisham (Dalbergia sissoo Roxb.), Poplar (Populus deltoids), Semal (Bombax ceiba) and Sufaida (Euclyptus camaldulensis) against subterranean termites’ infestation at Karor, Layyah, Pakistan. Wood stakes of these trees (30x12x3cm)…
S Ahmed, M Arshad Ejaz, M Asam Riaz, A Hussain
Comparative study on physical properties of four fast growing timber species of Bangladesh
2006 - IRG/WP 06-10570
…saman), Sissoo (Dalbergia sissoo Roxb.) and Akashmoni (Acacia auriculiformis) plantations are started as a fast growing timber specie from a few years back in Bangladesh. Initian objectives were to get fuel wood only from those trees, but a very positive response was found for Ghoraneem, Rain Tree, Sissoo and…
M M Islam, B K Dey, M O Hannan, G N M Ilias
Need to develop processing technologies (for value addition) of the species evaluated for their properties and uses
2005 - IRG/WP 05-40307
…need no preservative treatment. Although species like Acacia crassicarpa, Cupressus goveniana, Cupressus lusitanica, Enterolobium contortisiliquum, Gironniera reticulata, Mastixia arborea and Sterculia urens are found to have a number of applications but they can not be recommended at present for different uses…
S R Shukla, S K Sharma, Y M Dubey, P Kumar, R V Rao, K S Shashidhar
The 1999-2000 annual report for the IRG - Wood Preservation in Egypt
2000 - IRG/WP 00-40188
…and amount, as Casuarina sp., Eucalyptus sp., Ficus sp., Acacia sp. Treated woods are potentially increasing in use. There are neither restriction for the use of treated woods, not any regulation concerning the desposal of these woods.
S I M Moein
Durability of plywood made from soft- and hardwoods assessed according to ENV 12038 after artificial and natural ageing
2000 - IRG/WP 00-20191
…heartwood of Douglas Fir, Scots Pine, European Oak, False Acacia and Macoré using a phenol-formaldehyde glue. The panels of 38 mm in thickness were pre-conditioned according to the following procedures: a) 12 weeks storage at 20°C/65% rh, b) 2 weeks artificial weathering (with rain and UV-radiation at changing…
H Leithoff, R-D Peek
Wood preservation in Kenya
2000 - IRG/WP 00-40190
…with only one immersion Plant (BFCA and PCP). Eucalyptus, Acacia,Cypress and some are the species commonly treated, mainly for the local market with some exports. Schedules have not been properly worked out for different end uses. Transmission, Telegraph poles and Fencing posts comprise the bulk of timber treated,…
R Venkatasamy