Your search resulted in 45 documents. Displaying 25 entries per page.
A comparison between the effects of ACC & CFK on the durability of beech, hornbeam and cottonwood by using Dipping & Bethel methods in the North of Iran
1997 - IRG/WP 97-40089
From the economical point of view, increasing the lumber durability by the application of preservative treatments is very important. In this study, samples were randomly selected from Fagus orientalis Lipsky., Carpinus betulus L. and Populus deltoides Bartr. in two forms (Board & Squared cross-section) and have been treated with ACC & CFK by using Dipping & Bethel methods. The matched ...
D Parsapajouh, V Etemad, K Pourtahmasebi
Studies on the destruction by marine borers of fishing boats along the north-eastern Black Sea coasts of Turkey
1980 - IRG/WP 451
Marine wood-boring organisms are attacking fishing boats along the northeastern coasts of the Black Sea, Turkey. The damage and the intensity of attack of Teredo navalis L in fishing boats were studied....
O A Sekendiz, R Ilhan
Fumigation as a remedial treatment: A review of North American literature
1983 - IRG/WP 3253
The development of the use of fumigants for eliminating decay in timber and roundwood in North America is reviewed. Initial experiments on oak wilt identified volatile chemicals which eradicated decay in roundwood. Subsequently, extensive experimentation on Douglas-fir poles in service showed that treatment with chloropicrin eliminated internal decay for more than ten years. Vorlex was also quite ...
J N R Ruddick
Studies on the infestation behaviour of the powder-post beetle Lyctus brunneus (Steph.) and its physical control in the wood yards of the Caspian forests of Iran
1985 - IRG/WP 1271
Lyctus brunneus (Steph.) is a pest which has not been previously thoroughly studied in Iran. It severely attacks Iranian hardwoods, especially those used in wooden houses and that have not been treated. Research work was necessary to determine the natural resistance of the most important timber species in Iran against this insect....
P Niloufari
Research on the effects of wood preservatives on the physical and mechanical properties of Iranian beech (Fagus orientalis Lipsky)
1985 - IRG/WP 3351
This research work was conducted with the aim of using preservatives such as Basilit and Wolman Salts with Iranian beech and to study any physical and mechanical changes these might have on the beech species of Iran. Samples were divided into three groups; one group were used as untreated controls, the second group was treated with Basilit and the third group was treated with Wolmanit. Results obt...
P Niloufari
Development of decay in untreated, second-growth Douglas-Fir using two exposure techniques in North Queensland
1997 - IRG/WP 97-20110
The results of two exposure techniques for evaluating the development of wood decay in untreated, mill-run lumber from second-growth Douglas-fir containing both sapwood and heartwood are presented. Nominal 50 mm by 100 mm by 2.5 m (2 in. by 4 in. by 8 ft) lumber, No 2 and better, was obtained from a production run in a mill that was processing second growth, Coastal Douglas-fir in western Oregon, ...
J Norton, S Kleinschmidt, R C De Groot, D Crawford
The effect of creosote and Basilit on the boards of 4 wood species against destructive fungi in Northern Iran
1989 - IRG/WP 3555
The results of the experiments conducted on the boards of maple, hornbeam, alder and beech, show that under the humid and moderate climate condition of Northern Iran, after 30 months, the witness samples were about 10% destructed by fungi, especially by Schyzophyllum commune and Coriolus versicolor. The impregnated samples by Creosote Basilite using Rueping and Bethell methods, were quite intact. ...
D Parsapajouh
List of wood-destroying fungi in Iran
1976 - IRG/WP 138
This list gives information on the wood-destroying fungi collected in the Iranian forests and from felled logs and boards in sawmills until now. They are mainly from the region of the Caspian Forests and from the climatically dry region between Teheran and Azarbaidjan, North Iran. It is understood, that this document may help to give more knowledge outside the country about the specific problems o...
P Soleimani
Review of Mold Issues in North America and Mold Research at Forintek
2003 - IRG/WP 03-10458
Over the last decade, air quality in homes and workplaces has become a high profile issue especially in relation to mold, receiving considerable media, public and legal attention. Forintek Canada Corp. and the wood industry in general have experienced large increases in inquiries regarding mold and the suitability of wood as substrate for its growth. Because wet wood supports growth of fungi the ...
A Uzunovic, A Byrne, Dian-Qing Yang, P I Morris
Natural durability of Iranian saxual wood (Haloxylon persicum) against the fungal decay
1991 - IRG/WP 1515
Haloxylon persicum is vidly planted in the deserfic region of Iran. At the present time, in the age of 30, these small trees are ready for cutting for the different uses, specially for rural buildings. But there's any knowledge about its durability. In this study the laboratory tests were carried out in accordance to European Standard. 5 fungi were used as: Trametes versicolor, Coniophora...
D Parsapajouh, F H Schweingruber, K Richter
Introduction of plank-built catamarans along the north coast of Andhra Pradesh, India – A development of recent origin
2003 - IRG/WP 03-10483
Hitherto, the most versatile fishing craft of the poor traditional Indian fishermen - the catamaran is made of solid timber logs of a few selected species of broad-leaved softwoods. Of late, the fishermen find it difficult to get these conventional varieties of timber chiefly because of three reasons, a) scarcity of commodity, b) prohibitive costs and c) competition from match and veneer industri...
M V Rao, K S Rao, M Balaji, V Kuppusamy
Accelerated laboratory testing of preservatives on 13 North American wood species
1999 - IRG/WP 99-30201
The ability of selected water and solvent based biocides to protect wood against fungal attack was evaluated on 13 North American wood species using 7 decay fungi in a modified soil block test. Most preservatives were capable of providing protection at their recommended above ground and soil contact use levels. Many decay fungi caused substantial weight losses on blocks treated with chlorothalonil...
J J Morrell, C M Freitag
Poplar wood and its damages in Iran
1987 - IRG/WP 1332
In Iran poplar planting has been used for many centuries ago specially in regions without forests. It had rural uses in ancient time, but recently many fast growing poplar species have been planted and many hybrids also have been planted; the following species had been cultivated widely in Iran: Populus nigra L. var. italica, Populus alba L., Populus caspica Bornm, Populus deltoides L., Populus X....
D Parsapajouh, P Niloufari
The field performance of CCA-C treated sawn refractory softwoods from North America
1997 - IRG/WP 97-40085
Approximately 15% of the total volume of wood treated in the United States consists of difficult to treat softwoods known as "refractory softwoods". The long term positive performance record of CCA treated sawn material is based upon the testing of yellow pine sapwood stakes with only limited field data available for sawn refractory softwoods. As a result, the existing North American wood preserva...
M J Richards, W S McNamara
Oxine copper (NYTEK® GD) for the control of mould and sapstain on lumber in North America
1989 - IRG/WP 3517
NYTEK® GD is a new, water-based, micro-dispersible formulation of oxine copper registered in the United States and Canada for control of mold and sapstain-causing fungi. NYTEK GD is noncorrosive and of low hazard to applicators and people handling treated lumber, when used according to the label. The product is an effective wood protectant applied as a dip or spray treatment at concentrations of ...
D F Myers, J M Fyler, C H Palmer, G D Rosebery
Notes on a wood preservation industry in Medan, North Sumatera, Indonesia
1987 - IRG/WP 3405
This paper deals with a descriptive account on the development of a wood preservation industry in Medan, North Sumatera (Indonesia). The industry was established in 1974 when the State Owned Electicity Corporation decided to use wooden power poles for their distribution network in North Sumatera province. However, the use of wooden power poles was discontinued in 1981, so as the preservation indus...
N Supriana, A Murad
Susceptibility of CCA treated North American hardwoods to Chaetomium globosum decay
1998 - IRG/WP 98-10278
Seven species of hardwood, Beech (Fagus grandifolia), Basswood (Tilia americana), Maple (Acer rubrum), Oak (Quercus rubra), Trembling Aspen (Populus tremuloides), White birch (Betula papyrifera) and Yellow poplar (Liriodendron tulipifera) were vacuum or pressure impregnated with CCA, at four retention levels. The CCA was allowed to fix in the wood at 35°C. Red pine (Pinus resinosa) was also inclu...
U Srinivasan, Y T Ung, P A Cooper
Utilization of coconut timber from north Sulawesi, Indonesia. Part 1: Durability
1994 - IRG/WP 94-30044
Coconut timber from non-productive plantations is a byproduct of an agricultural crop and, by the same token, constitutes a renewable resource which may serve as a complement to or, at least in part, as a substitute for traditional timbers in local markets. Its more extensive utilization is expected to contribute to the conservation of tropical rain forests. Export of coconut timber and/or wood pr...
R-D Peek
Recent development in North American industrial wood preservation plants
1988 - IRG/WP 3467
After remaining static for many years there have been a number of changes in plant design and treating cycles in recent years. This has been particularly true in the USA where few restrictions are placed on plant treating cycles by specifications; since only results type specifications are used. It is also important to realize that the AWPA Specifications for Southern Yellow Pine only call for tre...
J F Bridges
Utilization of coconut timber from north Sulawesi, Indonesia. Part 2: Treatability
1994 - IRG/WP 94-40025
Under tropical conditions coconut wood is quickly degraded by mold and blue stain fungi. Low density wood in ground contact is commonly decomposed by wood destroying fungi within a period of only a few months, higher density wood from the outer stem regions within 24 to 30 months (MOSTEIRO, CASIN, SERIBAN 1976; McQUIRE 1975). Moreover, according to McQUIRE (1975) green wood of lower density is hig...
R-D Peek
Dip diffusion treatments in the tropics. A preliminary report
1973 - IRG/WP 316
Diffusion treatments based on the use of boric acid alone or in combination with other preservatives are widely used in Australasia (see IRG/WP/310). As part of a general survey covering both temperate and tropical countries, a survey of diffusion treatments in South East Asia, Southern Asia and the South Pacific was carried out, and the results of this survey are reported here. The survey is far ...
C R Levy
The performance in the sea of seven experimental piles after sixteen years at Port Douglas, North Queensland
1989 - IRG/WP 4151
After 16 years at Port Douglas, two double-treated Pinus radiata piles were in excellent condition, a CCA-treated Pinus elliottii pile was in good condition other than for a confined streak of teredinid attack, while two CCA-treated and two untreated turpentine piles were moderately to severely attacked by Sphaeroma in the tidal zone. The marine borers collected were Sphaeroma terebrans, Martesia ...
L J Cookson, J E Barnacle, C N McEvoy
Chromated copper arsenate preservative treatment of hardwoods. Part 2: leaching performance of seven North American hardwoods
1997 - IRG/WP 97-30132
Seven North American hardwood species were treated with 2% CCA-C solution and fixed at temperatures of 21°C and 50°C and conditions of high relative humidity (95%) as described in Part 1 of this presentation. Red pine (Pinus resinosa) was included as a softwood for comparison. Adequately fixed wood blocks (99.9% chromium fixation) were exposed to leaching tests according to AWPA E11-87 test. Par...
T Stevanovic-Janezic, P A Cooper, Y T Ung
Research studies on infecting behaviour of Fomes fomentarius (L. ex FR) Fr. and its physical control in the wood yards of the Hyrcanian (Caspian) forests of Ira
1996 - IRG/WP 96-10179
Due to illegal cutting, girdling and ringbarking many damages of tinder fungus (Fomes fomentarius (L. ex Fr) Fr.) are seen on beech, poplar, oak and birch at Hyrcanian (Caspian) forests of Iran. The beeches (Fagus orientalis Lipsky) are damaged highly and the beech community of Fagetum are infected from 800 meter altitudes at Gorgan (East of Caspian forests) to 600 meters altitudes at Gilan (West ...
P Niloufari
Wood preservation in Iran
1984 - IRG/WP 3270
The report sketches the history of the use of wood in Iran to the establishment of the country's national forest service and gives some figures for Iran's timber needs by the year 2000. Progress in wood preservation has been slow, although items such as railway sleepers and poles have been pressure treated since the first pressure impregnation plant was erected in 1932. Today the...
P Niloufari, R Cockcroft