Your search resulted in 535 documents. Displaying 25 entries per page.
A roadmap for performance-based specification of wooden components based on service life prediction
2007 - IRG/WP 07-20351
The need for an unified and harmonised system for performance classification and specification of wood and wood-based products in Europe emanates from requirements of users and the European Construction Products Directive, CPD. A road to a feasible specification system is outlined. Exposure-related performance prediction was worked out as a key task on the way to product specification. Therefore s...
C Brischke, A O Rapp
Accelerated Above-ground Testing of Wood Preservatives
2007 - IRG/WP 07-20358
The Canadian wood preservation industry is interested the introduction of new preservative formulations, some of which are intended only for above ground uses. Canada’s Pest Management Regulatory Agency requires data from field tests under Canadian conditions but these can take many years to generate results. Forintek has therefore developed an accelerated above ground test, under contract to a ...
P I Morris, S McFarling
Comparison of laboratory termite test methods
2007 - IRG/WP 07-20365
Seven standardized laboratory tests with termites were evaluated. The bioassays were made in accordance with EN 117, SAA32 E08, SAA32 E09, Ebw 02, the American Wood-Preservers’ Association (AWPA) Standard E1-97, the Japan Wood Preserving Association (JWPA) Standard 11 (1) and The Protocols for Assessment of Wood Preservatives. Two different wood preservatives each in three concentrations and add...
H-U Kruschinski, W Unger, A F Preston
Wood furfurylation process development. Part 1: Oscillating Pressure Method
2007 - IRG/WP 07-40376
Furfurylated wood (wood modified by furfuryl alcohol) has over the last years gained marked shares from both tropical wood and conventional preservative treated wood and this has, in turn, generated several research projects concerning process development. The impregnation of spruce is well known from literature to be a difficult task. Furthermore, the sapwood of Scandinavian-grown Scots pine is a...
E Larnøy, M Westin, B Källander, S Lande
Laboratory test of blue stain control by chemicals
2007 - IRG/WP 07-30430
8 chemicals and some mixtures against Botryodiplodia theobromae Pat., Fusarium verticillioides(Sacc.)Nirenberg, Trichoderma harzianum Rifai, Trichoderma viride Pers., and Penicillium purpurogenum Stoll were conducted in laboratory by inhibition zone in the paper. The results were shown that: CBZ and benomyl as well as copper oxine alone are much high efficacy for inhibiting most of the 5 fungi tha...
Zhijuan Wang, Zehui Jiang, Mingliang Jiang, Chungen Piao
Comparative study between full cell and passive impregnation method of wood preservation for laser incised Douglas-fir lumber
2007 - IRG/WP 07-40359
Many wood species are highly resistant to conventional pressure treatment. To improve the chemical impregnation into Douglas-fir (Pseudotsuga menziesii Franco) lumber, the passive impregnation method had been developed. In this study, ability of the passive impregnation for lumber was compared with a conventional full cell method. Square Douglas-fir lumber with the incising density of 10,000 holes...
Md N Islam, K Ando, H Yamauchi, Y Kobayashi, N Hattori
Development of preservative treatment method using sub and super critical carbon dioxide
2007 - IRG/WP 07-40385
Significant efforts have been devoted for developing biocide impregnation method into wood materials using supercritical fluid. Developing better understandings of fluid phase and its effect on treatment results would facilitate a more rational development of supercritical fluid (SCF) impregnation. In this project, the preservative treatabilities under super- and sub-critical fluid conditions we...
Myeung-Won Cho, Sung-Mo Kang, Gyu-Hyeok Kim
Performance of sintered glass screening as a potential physical barrier against subterranean termites in the laboratory and after 4 years of field test
2008 - IRG/WP 08-10646
This paper describes the performance of sintered glass screenings as a potential physical barrier against the subterranean termites, Coptotermes acinaciformis and Mastotermes darwiniensis in the laboratory and after four years of field testing in active above-ground mound colonies of Coptotermes lacteus.
The laboratory results suggest that sintered glass is a viable control option against Copto...
J R J French, B M Ahmed (Shiday)
Variation of commercial timbers from Turkey in resistance to marine borers as assessed by marine trial and laboratory screening
2008 - IRG/WP 08-10668
Commercial timbers from Turkey used in coastal construction and boat building were tested for their resistance to marine wood-boring invertebrates in a marine trial and in a laboratory screening test. The timbers tested were beech (Fagus orientalis), oak (Quercus petraea), chestnut (Castanea sativa) and Scots pine (Pinus sylvestris). The marine trial was conducted over a period of 5 months at Mers...
H Sivrikaya, S M Cragg, L M S Borges
Laboratory evaluation of four benzoylphenylureas against two species of Reticulitermes Holmgren, 1913 (Isoptera: Rhinotermitidae) from Southwest Europe
2008 - IRG/WP 08-30472
The use of benzoylphenylureas in baits for the control of termite pest is currently increasing. The chemical compounds used have been tested mainly with American termites. The effectivity against non-American termite species must be analyzed because the worldwide use of those compounds. In this paper four benzoylphenylureas (hexaflumuron, diflubenzuron, triflumuron and noviflumuron) have been test...
M Gaju-Ricart, M Urbano-Luque, R Molero-Baltanás, C Patiño-Martínez, C Bach de Roca
Laboratory Evaluation of Flurox, a Chitin Synthesis Inhibitor, as a Bait Toxicant Against Microcerotermes diversus (Silvestri ) (Isoptera: Termitidae)
2008 - IRG/WP 08-30477
Microcerotermes diversus (Silvestri) is the most economically destructive termite in structures in southwest, Iran . One sustainable control strategy that usually help in reducing the subterranean termite damage in buildings , which is safe to the user and the environment is the use of IGRs in a suitable bait matrix. In the laboratory assays described here, the delayed toxicity of Flurox (a Chitin...
B Habibpour
Effects of Moisture Content and Species on Penetration of Liquid in Laser Incised Lumber by the Passive Impregnation Method
2008 - IRG/WP 08-40408
Penetration of liquid by passive impregnation method for Douglas-fir (Pseudotsuga menziesii Franco), sugi (Cryptomeria japonica D. Don) and Japanese larch (Larix leptolepis Gordon) were studied. Effects of initial moisture content of sugi (16, 43 and 70% moisture content) on liquid penetration by the method were also studied. Dried Douglas-fir and sugi, and green Japanese larch and sugi were treat...
N Hattori, M Nazrul Islam, K Ando, H Yamauchi
Comparison of permeability at different levels of moisture content in Bornmullerian fir (Abies bornmulleriana Mattf.) and Eastern spruce (Picea orientalis L.) impregnated under vacuum/pressure through full-cell method by using CCA and CCB of different concentrations
2007 - IRG/WP 07-40366
In this study, a comparison has been made in terms of the combined, longitudinal, tangential, and radial permeability of the species of Bornmullerian fir (Abies bornmulleriana Mattf.) and Eastern spruce (Picea orientalis L.) with moisture contents of 50 % and 15 %, which were impregnated under vacuum/pressure through full-cell method by using water-borne wood preservatives (impregnation materials)...
I Usta
Above Ground Field Testing – Influence of test method and location on the relative performance of various preservative systems
2008 - IRG/WP 08-20393
Standardized above ground tests such as the lap-joint or test deck methods can be very slow in producing useful information on the relative performance of wood preservative systems. It often requires many years for decay to develop in wood treated to sub-optimal concentrations of standardized preservatives, making relative comparisons of performance between new systems and established preservativ...
A Zahora
Biological Performance of micronized copper wood preservative formulations in field and laboratory tests
2008 - IRG/WP 08-30488
Micronized Copper wood preservative formulations with different co-biocides were exposed to brown rot fungi in an 8-week AWPA E10 soil block decay test and two AWPA E7 ground-contact decay tests in Hawaii. The micronized copper formulations performed well against decay at or above the AWPA UC3 and UC4 retentions stipulated by the ICC-ES. Micronized copper preservatives performed comparably to a ...
G M Larkin, J Zhang, D L Richter, R J Ziobro, P E Laks
Laboratory Studies on Copper Availability in Wood Treated with Soluble Amine Copper and Micronized Copper Systems
2008 - IRG/WP 08-30489
A laboratory method has been employed to investigate the level of soluble copper in wood treated with various copper-based preservative systems, such as micronized copper (particulate copper) and amine copper solutions. This report describes the methodology and preliminary results on determination of the soluble copper in the treating solutions and the treated wood by these systems, as well as th...
L Jin, P Walcheski, A Preston
Laboratory and field exposures of FRT plywood: Part 1. Physical test data
2008 - IRG/WP 08-40426
Our understanding of the laboratory induced degradation with fire retardant systems is currently limited since we are unable to correlate laboratory steady-state experiments with actual in-service field degradation. Current model studies have generally been limited to isothermal rate studies with selected model FR chemicals. Other factors also play a major role in the degradation of FR-treated woo...
H M Barnes, J E Winandy, C R McIntyre
Comparison of laboratory and natural exposure leaching of copper from wood treated with three wood preservatives
2008 - IRG/WP 08-50258
Standard and non-standard laboratory and field leaching tests were used to compare copper leaching from wood treated to above ground and ground contact specified retentions for three wood preservative systems, CCA-C, ACQ-D and a micronized copper formulation with quat DDAC as co-biocide. Copper leaching was highest for the ACQ formulation. Percent leaching was lowest for the micronized copper sy...
P A Cooper, Y T Ung
Effects of cold treatment on wood destroying fungi important in cultural heritage
2009 - IRG/WP 09-10706
The dry rot fungus Serpula lacrymans (Wulfen:Fr.) Schroeter is notorious in building environments for its vitality, destructive potential, and the huge costs associated with remediation of damage caused to wood of cultural heritage. Due to the potentially adverse of effects of chemical treatment methods such as have been attempted in the past, more benign physical methods of treatment, e.g. heat t...
M Lüdicke, W Unger, G Binker
Review of candidate graded particle barrier testing methods in Australian Standard (AS 3660.3 – 2000): Assessment criteria for termite management systems
2009 - IRG/WP 09-20417
The Australian Standard (AS. 3660.3 – 2000) for assessment of candidate graded particle termite barriers is reviewed and suggestions for amendments are made. Areas requiring amending in light of current biological knowledge involve the inclusion of proprietary or patented systems rather than generic types; selection of test termites in the genus Coptotermes; duration of test periods; and inadequ...
J R J French, B M Ahmed (Shiday), B L Schafer
Analysis on dynamics of basidiomycetes in decayed wood by a method using non-specific amplification of DNA
2009 - IRG/WP 09-20426
A combination of non-specific amplification of DNA by Phi29 DNA polymerase and specific amplification of the internal transcribed spacer (ITS) region of ribosomal DNA (rDNA) by polymerase chain reaction (PCR) was applied to elucidate the ratio of basidiomycete species inhabiting decayed wood from an outdoor bench. After more than 8 hours incubation with Phi29 DNA polymerase, concentration of DNA ...
T Wada, K Igarashi, M Samejima
Laboratory study on the termiticidal efficacy of Eremophilone oil
2009 - IRG/WP 09-30497
A novel timber preservative formulation, Termilone® TT, is being developed by BioProspect Limited. This environmentally friendly preservative formulation incorporates Eremophilone oil, extracted from Eremophila mitchellii, as the active ingredient. Chemical analysis performed on Pinus radiata sapwood specimens treated with the Termilone® TT formulation revealed that the Eremophilone oil is relat...
D K Scown, J W Creffield, R Spooner-Hart
Laboratory and field evaluation of Laminated Strand Lumber treated with Borogard® ZB against termites
2009 - IRG/WP 09-30498
A laboratory bioassay and subsequent field trial was undertaken to determine the termiticidal effectiveness of a Laminated Strand Lumber (LSL) composite when treated with Borogard® ZB. The bioassay and field trial were conducted against two of Australia’s most economically important species of termite, Mastotermes darwiniensis and Coptotermes acinaciformis. Against both species of termite, LSL ...
D K Scown and J W Creffield
Laboratory test of some formulations against stain and mould fungi isolated from bamboo wood
2009 - IRG/WP 09-30508
To screen the effective anti-mould formulations, fungicides such as carbendazim, tebuconazole, fludioxonil, difenoconazole, prochloraz, benomyl and 8-hydroxy-quinoline copper (copper oxine) were selected to conduct the laboratory test of fungicidal activity by method of inhibition zone against Botryodiplodia theobromae Pat., Fusarium sp., Alternaria tenuis Nees., Penicillium purpurogenum Stoll, Tr...
Xingxia Ma, Airui Sun, Mingliang Jiang, Daochun Qin
Laboratory and above ground exposure efficacy of silicon-boron treatments
2009 - IRG/WP 09-30510
The study deals with silicon compounds, namely tetraethoxysilane (TEOS), phenyltriethoxysilane (PhTES) and methyltriethoxysilane (MTES) at concentrations of 23, 16 and 10% in combination with 1.2-1.5% boric acid. The aim with the study was to combine the chemical approach with the necessary biological tests of the impregnated wood. The tested silicon-boron combinations ensured mass loss less than ...
N Terziev, D Panov, A Temiz, S Palanti, E Feci, G Daniel