Your search resulted in 409 documents. Displaying 25 entries per page.
Termite physical barriers: Is retrofitting with Granitgard an option?
1993 - IRG/WP 93-40011
Granite particles within the range of 2.4 to 1.7 mm diameter were recently adopted by the Standards Association of Australia as an alternative treatment to soil chemical barriers in protecting new buildings against subterranean termites. The granite substrate is sold under the commercial name, "Granitgard". However, there are many existing buildings that have no chemical or physical subterranean t...
J R J French, B M Ahmed
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 6: Report of third inspection (24 months) in Australia
1980 - IRG/WP 456
This report presents the results of the third inspection of the IRG/COIPM International Marine Test specimens installed at the Goat Island Marine Biological Station of the Maritime Services Board of New South Wales, in Sydney Harbour. The inspection was completed on 5th December, 1979, after 24 months exposure. As on previous occasions, this inspection was carried out in conformity with the provis...
J Beesley
The effect of wood preservatives on the relation between the electric resistance and moisture content in scots pine (Pinus sylvestris L.) sapwood
1998 - IRG/WP 98-20142
The effect of two types wood preservatives (TBTO and CuHDO) on moisture content measurements with an electric resistance meter in pine sapwood is assessed. High and low concentration impregnated pine sapwood is climatized at different relative humidities. Once climatized the samples are weighed and the moisture content is measured with an electric resistance meter by fixed stainless steel, isolate...
B W Holleboom, W J Homan
The effect of primary blue-staining fungi on the strength properties of Scots pine sapwood
2004 - IRG/WP 04-10515
The fungi action may have influence on wood properties especially Basidiomycotina fungi causing wood decay. The investigation of influence of fungi causing mainly wood discoloration and disfigurement on wood properties is still in development process. There were determined the differences between the bending strength, the compression along the grains and impact strength of control and blue stained...
A Fojutowski
Dip-diffusion of dressed timber - Effect of drying
1990 - IRG/WP 3603
The effect of drying on BFCA dip-diffused, dressed, freshly sawn timber was determined by the depth of penetration of boron achieved on two test timber species, White Cheesewood (Alstonia scholaris) and Light Hopea (Hopea papuana). The results obtained showed that the light density White cheesewood was completely penetrated even after 3 days drying while Light Hopea, treated immediately achieved 5...
H C Konabe
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 14: Report of fifth inspection (48 months) in Australia
1982 - IRG/WP 484
This report presents the results of the fifth inspection of the IRG/ COIPM Internatlonal Marine Test specimens installed in Sydney Harbour in December, 1977. This inspection took place on 9th December, 1981, just 48 months after the specimens were installed. Earlier reports have contained full details of the treatment and installation of the specimens as well as results of all previous inspections...
J Beesley
Fungitoxic effect of the quaternary ammonium compounds preservatives against Basidiomycetes by using agar-plate and agar-block methods
1996 - IRG/WP 96-30118
Results of investigations on the fungitoxic value of three versions of wood preservatives based on the quaternary ammonium compounds (lauryldimethylbenzylammonium chloride, lauryldimethyl-benzylammonium bromide and alkylbenzyldimethylammonium chloride) and borates in relation to the wood destroying fungi have been presented. The agar-plate (screening) and agar-block method were applied. A wide ran...
J Wazny, P Rudniewski
Combustion properties of Alder wood treated with some new environment friendly natural extractives. Part 1. Effect of Natural Tannins on the Combustion Properties
2002 - IRG/WP 02-40234
Powders of the brutia pine bark, sumach leaves, acorn, gall-nut and boric acid and borax which are known as potential environment friendly wood preservatives were impregnated according to ASTM D 1413-88 in order to determine their combustion properties. A commercial treatment compound, Tanalith-CBC, was also used for comparison.
The results indicated that the natural extractives did not have an...
Ü C Yildiz, A Temiz, E D Gezer, S Yildiz
The effect of precolonisation of blocks with common pole resident fungi on subsequent biological control of Lentinus lepideus by Trichoderma spp
1989 - IRG/WP 1387
Results of previous field studies have indicated that the spread of Trichoderma throughout the groundline regions of the interiors of creosoted poles are adversely influenced by the presence of large populations of resident mould organisms. Failure of the control fungus to develop and colonize all of the decay susceptible groundline region means that sucessful control of decay is most unlikely. Th...
A Bruce, T L Highley
Effect of volatiles from bacteria and yeast on the growth and pigmentation of sap-stain fungi
2000 - IRG/WP 00-10331
Sapstain fungi cause deterioration of wood due to colonisation by pigmented hyphae but without producing significant strength losses. This is due to the production of melanin in the fungal cell walls of the staining fungi. Any biological control strategy targeted against this type of deterioration would therefore be considered successful if it inhibited either fungal growth or pigment production. ...
A Bruce, R E Wheatley, S Verrall
Ponding of radiata pine (Pinus radiata) - 1. The effect of bacteria on wood
1998 - IRG/WP 98-10265
Radiata pine (Pinus radiata) wood panels which had been ponded for periods ranging from 2 to 12 weeks were examined by light microscopy, confocal laser scanning microscopy (CLSM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) for bacterial colonisation of wood and degradation of pit membranes. After 2 weeks of ponding bacteria colonised the outer few cells of wood, ...
A P Singh, Y S Kim, U Schmitt, B S Dawson
The effect of glycol additives on diffusion of boron through Douglas-fir
2000 - IRG/WP 00-30235
Boron is highly effective against a variety of fungi and insects and is able to diffuse with moisture through wood. Diffusion decreases sharply at lower moisture contents, a characteristic that limits the potential use of this material as a remedial treatment for arresting internal decay. One approach to improvi ng boron diffusion is the simultaneous addition of glycol, which is presumed to enhanc...
C M Freitag, R Rhatigan, J J Morrell
Variation in natural durability of British grown Douglas fir ((Pseudotsuga menziesii (Mirb.) Franco). Part I. Effect of density and growth rate
2002 - IRG/WP 02-10445
Seed origin trials of Douglas fir (Pseudotsuga menziesii) in Britain have provided important information on growth differences between origins (Lines, 1987), but the variation in wood properties between origins has not been reported. The present paper describes a study of the variation in natural durability against two brown rot fungi (Coniophora puteana and Postia (Poria) placenta) and in a fung...
S Akhter, M D C Hale
Kinetics and mechanism of fixation of Cu-Cr-As wood preservatives. Part 5: Effect of wood species and preservative composition on the leaching during storage
1975 - IRG/WP 354
Conversion reactions during storage of CCA treated wood take place even at and below the fiber saturation point as long as ion transport is possible. Increase in drying temperature increases the final pH of the treated wood and the leachability of Cu and decreases slightly the leachability of Cr, while the leachability of As is not affected. This temperature effect is considered to be of no techni...
S-E Dahlgren
Effect of kerfing on performance of Douglas-fir utility poles in the Pacific Northwest
1990 - IRG/WP 3604
Preservative treatment produces an external layer of protection in Douglas-fir poles, but the development of deep checks as the wood dries after treatment can permit entry by fungi and insects. A variety of remedial treatments can arrest this decay; however, it is far more efficient to prevent checking. Kerfing represents one potential method for limiting the development of deep checks. In previou...
J J Morrell
The effect of Trichoderma volatiles on the growth and enzyme production of Serpula lacrymans
2000 - IRG/WP 00-10332
Although various authors have reported the biological control of Serpula lacrymans by Trichoderma spp. the mode of antagonism employed by Trichoderma is not yet clear. The work presented here concentrates on the production of anti-fungal volatiles for inhibition of S. lacrymans growth. Volatile mediated interactions were examined between four S. lacrymans isolates and a range of nine known Trichod...
S N Humphris, A Bruce, R E Wheatley
Disodium octaborate tetrahydrate, alone and in conjunction with a selected isolate of Trichoderma viride, reduces decay of fresh felled pine independent of the effect of weathering
1994 - IRG/WP 94-10054
Unpeeled billets of Corsican pine were treated with the following: 5% aqueous disodium octaborate tetrahydrate (DOT) solution; 5% DOT solution with an isolate of Trichoderma viride with a low susceptibility to borate; the Trichoderma viride isolate alone. Half of the billets in each treatment group were also placed in large-diameter plastic pipes to protect the billets from the weather. All three ...
M W Schoeman, D J Dickinson, J F Webber
Effect of humic acid on leaching of CCA from treated wood
2000 - IRG/WP 00-50151
Laboratory studies indicate that relatively high concentrations (1.000 - 10.000 ppm) of humic acids can increase the leaching of chromium and copper from CCA-C treated wood, and that copper is most affected. They also show that leaching with natural water samples can result in higher leaching of all components than leaching with distilled water. Evaluation of CCA component retentions and mass bala...
P A Cooper, D Jeremic, J L Taylor, Y T Ung
Effect of vapour boron treatment on mechanical properties of wood based board materials
1992 - IRG/WP 92-3727
The mechanical properties of Medium density fibre board, Chipboard and Oriented strand board were investigated after treatment to two retention levels of boric acid applied as a vapour phase system. A range of mechanical properties were investigated. The vapour boron treatment does not have any significant effect on most of the mechanical properties of the boards. The exception is a reduction in i...
R Hashim, D J Dickinson, R J Murphy, J Dinwoodie
IRG/COIPM INTERNATIONAL MARINE TEST - to determine the effect of timber substrate on the effectiveness of water-borne salt preservatives in sea-water. Progress Report 18. Report of seventh inspection (72 months) in Australia
1984 - IRG/WP 4108
This report includes the results for the 72 month inspection of the IRG/COIPM International Marine Test installed in Sydney Harbour. Although, overall, attack by teredinid and limnorid borers have been most commonly encountered in test specimens at this site, slight attack, mainly by sphaeromatids, has recently been initiated on some hitherto unattacked treated Alstonia scholaris and Pinus sylvest...
L J Cookson, J E Barnacle
A laboratory study on effect of coating materials on leaching of copper from CCA treated wood
2001 - IRG/WP 01-50176
Components of CCA preservatives can leach into surrounding soil and water and have some effect on germination and growth of some plants. In this report, the effect of coating materials in reducing chemical concentration in the leachate were evaluated. Rubber wood blocks (Hevea brasiliensis) treated with CCA were fixed at room temperature at high humidity. After air dried, they were painted with co...
A Veenin, T Veenin
Effect of test site, preservative and wood species on decay type Glenbervie pastoral and radiata pine forest sites
2000 - IRG/WP 00-30248
Pinus radiata stakes were treated with 0.8, 1.2, 1.8, 2.7 and 4.1 kg/m3 of CCA and Fagus sylvatica with 2.7, 4.1 and 6.1 kg/m3 of CCA. Both wood species were also treated with equivalent retentions of a copper plus triazole preservative (CT) (0.89, 1.3, 2 and 3 kg/m3 of copper for pine & 2.5 and 4 for beech) and chlorothalonil plus chlorpyriphos in oil (CC) (1.4, 2.1, 3.2 and 4.8 kg/m3 of chlo...
R N Wakeling
The effect of composition on the effectiveness and fixation of CCA and copper/chrome preservatives. Part 1: Effectiveness. Part 2: Selective absorption and fixation
1973 - IRG/WP 324
A preliminary study of a wide range of copper-chrome-arsenic formulations indicates that the most effective are in the region, CuSO4 · 5H2O - 35 to 45 per cent; K2Cr2O7 - 40 per cent and above; As2O5 · 2H2O - 25 to 15 per cent or less. Effectiveness appears to depend more on the copper content than the copper - arsenic. Observations on selective absorption and leaching suggest that the chromium ...
D N R Smith, A I Williams
The effect of chemical treatment on the moisture distribution of Pinus radiata D.Don subjected to wick action
1999 - IRG/WP 99-40135
Radiata pine sapwood stakes were treated with a range of chemicals, including an ammoniacal copper quaternary ammonium compound (ACQ), a copper-chrome and arsenic (CCA) solution and a CCA-oil treatment, potassium linoleate copper linoleate, a paraffin wax and a proprietary alkyd resin. The effect of these treatments on the extent of water absorption and moisture movement through the stakes was inv...
J Hann, P Vinden
Field evaluation determining the toxic effect and diffusion properties of Impel, Improsol and TBTO-capsules in L-joints (spruce) for pretreatment application
1991 - IRG/WP 3641
Bonded joints (L-joints and T-joints) are especially at risk from water absorption (rain, condensation) over bare, unprotected radial wood surfaces (joggle joints). It is therefore quite certain that lasting protection against fungi attack cannot be guaranteed in the long term if the surface of coating is damaged. Therefore, in a field investigation, using L-joints (spruce) over a total period of ...
R Gründlinger, K Messner, O Janotta