Your search resulted in 3115 documents. Displaying 25 entries per page.
Conditions and possibility of nanobiocides formulation for wood protection
2008 - IRG/WP 08-30467
During development of nanobiocides for wood protection the need to identify mineral composition of wood in respect of trace elements and nourishing conditions of wood destroying fungi in relation to these elements was discussed....
J Wazny, A Kundzewicz
The Effect of Heat on the Retention of Ammoniacal Copper Quat (ACQ-AB) onto Scots Pine (Pinus Sylvestris L.) Wood
2008 - IRG/WP 08-40390
In this study, the sapwood of Scots pine (Pinus sylvestris L.) were treated with ammonical copper quat type (ACQ-AB), which is one of the environmentally friendly wood preservatives, by using soaking method as a functions of various temperatures and time. The results indicated that the retention behaviour of ACQ onto the wood was considerably affected by temperature of ACQ solution and treatment t...
M Hakki Alma, A Mukremin Kara
Water sprinkled pine wood: A microscope study on boards showing streaking
1993 - IRG/WP 93-10033
Boards sawn from the outer sapwood of pine lumber previously water sprinkled for periods of 10-18 weeks and kiln dried, showed streaking after staining. Two types of enhanced stain uptake were noted: 1) a more concentrated and localized form after 10 weeks and 2) a more diffuse type which developed in later stages of water sprinkling. Areas showing enhanced stain uptake were examined using light a...
G F Daniel, T Elowson, T Nilsson, A P Singh, K Liukko
The effect of low molecular weight chelators on iron chelation and free radical generation as studied by ESR measurement
2000 - IRG/WP 00-10367
The focus of this work was to improve our current knowledge of the non-enzymatic mechanisms involved in brown-rot decay. Electron Spin Resonance (ESR), also known as Electron Paramagnetic Resonance (EPR), is an attractive technique for the identification and study of chemical species containing unpaired electrons (such as radicals and certain transition metal species). ESR spin-trapping techniques...
Yuhui Qian, B Goodell
Visualization of inorganic element distribution in preservative treated wood by SEM-EDXA
2001 - IRG/WP 01-40208
SEM-EDXA was found to be an effective way of visualizing inorganic element distribution in wood as it was possible to examine some inorganic elements at the same time and map the concentration differences in color. Japanese cedar sapwoods were impregnated by vacuum treatment with CuAz or by pressure treatment with CCA preservatives and then distribution of Cu, Cr and As elements in wood were exami...
H Matsunaga, R Matsumura, K Oda
Molecular Microbiology and Wood Protection
2009 - IRG/WP 09-20416
During the last decade, the development of molecular tools has allowed significant advances in environmental microbiology. Such techniques have proved to be invaluable tools for the qualitative and quantitative description of environmental microbial communities. The aim of this paper, written for non-specialized readers, is to discuss the possible applications of such tools in wood preservation fi...
E Gelhaye, M Morel
Tests on the effectiveness of concentrated borate wood preservative
2009 - IRG/WP 09-30500
Tests were carried out to examine the toxicity of concentrated borate wood preservative to termites, fungi and mammals. The results showed that the preservative treated timber had high resistance to termite or decay and its acute oral toxicity belonged to low grade. The research shows that concentrated borate solution is an environmentally sound preservative and can be used in non-pressure treatin...
Su Haitao, Zhang Yanjun, Xie Guijun, Chen Lifang, He Xuexiang
Wood Protection in China
2009 - IRG/WP 09-30516
The wood protection has been recognised in ancient China, and has made the tremendous contribution to the knowledge and techniques of wood protection. The paper mainly introduced the development and situation of China wood protection industry, including industry organization, policy guidance, standardization system, quality supervision, training, technical exchange, project HYPERLINK "http://dj.i...
Zhongwei Jin
Water-borne wood preservatives against marine borers. Results from NWPC marine trials started in 1972 and 1976
1990 - IRG/WP 4162
The paper presents the results from NWPC (Nordic Wood Preservation Council) marine trials started in 1972 and 1976. The trials are carried out according to the NWPC Standard No. 1.4.2.2./73 "Marine test - a test against marine wood boring organisms in sea water". The test site is Kristineberg Marine Biology Station on the west coast of Sweden. The wood blocks used in the trials were made from sapw...
Ö Bergman, C Lundberg
Effect of EDTA on removal of CCA from treated wood
2002 - IRG/WP 02-50182
Since substantial amounts of chromated copper arsenate (CCA) remain in the wood for many years, the disposal of CCA-treated wood causes escalating environmental concerns. Additionally, wood waste is generated when treated wood is put into service, for which environmentally benign disposal technologies need to be developed. Novel approaches to remove copper, chromium, and arsenic from CCA-treated w...
S N Kartal
Bamboo preservation in Vietnam
2009 - IRG/WP 09-40457
This paper presents the current state of bamboo preservation in Vietnam. The report focuses on the importance of bamboo preservation in relation to the bamboo resource and utilization, the major methods for preservation (such as non chemical und chemical methods), and emphasises the today’s pressing problems of research, standards as well as information for the bamboo preservation industry in Vi...
Tang Thi Kim Hong
The resistance of wood coated with different solvent-borne paints against colonisation by decay fungi
2009 - IRG/WP 09-40468
This paper examines different solvent-borne paints characteristics and their decay resistance when applied on pine wood surface. It was determined by the standard ENV 839 procedure. The part of samples were subjected to accelerated ageing according to the EN 84 standard. The discussed commercial paint systems were typical stains or penetrating oil-based products, with or without biocides....
B Mazela, P Hochmańska
The Effect of Soil on the pH of Untreated Southern Pine in Ground Contact
2010 - IRG/WP 10-10742
Untreated southern yellow pine samples were subjected to three soils that had been amended to provide acidic, neutral and alkaline conditions. Wood pH was measured prior to, and then one, two, four and eight weeks after being placed in the soil to determine the effect of soil pH on wood pH....
C Vidrine, C Schauwecker, L Jin, A F Preston
Accreditation: mutual benefits for research and industry
2010 - IRG/WP 10-20452
The wood preservation laboratory of the CIRAD had its first ISO 17025 accreditation from the COFRAC in 2006 for 5 standardized test procedures. The so called “first cycle” of its accreditation will be mid-2010. This laboratory is now accredited for 8 tests and is planning to increase the field of its quality management and accreditation. This poster describes how research projects, pre-normati...
L Martin, N Leménager, C Baudassé, M-F Thévenon
Investigation of some technical properties of heat-treated wood
2003 - IRG/WP 03-40266
The objective of this study was to investigate some technical properties of heat-treated wood.
Wood heat-treated according to a process intended for wood in above-ground end-uses (European hazard class 3) was subject to the following:
· A delamination test according to EN 391 with glulam beams made of heat-treated pine (Pinus sylvestris) and spruce (Picea abies) laminations, assembled with PR...
C Bengtsson, J Jermer, A Clang, B Ek-Olausson
Exterior wood stains
1980 - IRG/WP 3135
Experience has shown that conventional paints cannot now be relied upon to provide a complete seal against water entry, that in practice water can often circumvent the film and that the paint, far from serving to keep water out will seal it in. Moreover present-day paints are often subject to localised and premature failure out of doors and consequently entail high maintenance costs. Problems of w...
E R Miller
Status of Wood Protection in Slovenia
2010 - IRG/WP 10-40491
Status of wood protection in Slovenia is described in this document. The most important factors that influence use of wood in our country are outlined. Furthermore, there are companies that formulate wood preservatives, their products and wood impregnation facilities are listed as well....
M Humar
Situation of Wood Protection in Spain
2010 - IRG/WP 10-40511
This paper shows the actual situation of Spanish Wood Protection. In the evolution of this sector over the last years, three factors have been very important: the increase of the use of wood for both structural and decorative uses in construction, the development of the Technical Building Code, and the transposition and implantation of the Directive of Biocides to Spain in October 2002....
B J Duval, J M Solis, T de Troya, M J Prieto
Building With Wood an strategic action in Spain
2010 - IRG/WP 10-40530
This paper explains the objectives and results of the “Building with Wood” project, mainly at Spanish level. As far as the wood preservation field is concerned, the present abstract also informs about the main goals of the project in this matter....
M Conde García, J I Fernández-Golfín Seco, J Galván Rodríguez
Chapter 1 - Introduction to bamboo
2007 - IRG/WP 07-10635-01
In this introductory chapter the botanical position, distribution, utilization,
outlooks, production, research, importance, propagation, natural
durability, preservative treatment, importance of preservative treatment,
treating principles, research on preservative treatment of bamboos and
the objectives of this book have been described briefly under individual
caption....
A K Lahiry
Vapour boron treatment of wood based panels: Further studies on mechanical properties
1993 - IRG/WP 93-30028
Samples of medium density fibreboard, chipboard and oriented strandboard were treated to two retentions of boric acid by vapour phase methods. The results of short term mechanical tests on this material were discussed by Hashim et al. (1992). The present paper discusses results with long term studies on bending and impact resistance with panel types. Long term tests of impact resistance showed no ...
R Hashim, R J Murphy, D J Dickinson, J Dinwoodie
How to keep coated wood structures sufficiently dry to avoid damage caused by rot
1991 - IRG/WP 2376
During the last ten years, a new type of problems with wood rot has emerged in Scandinavia. Thousands of houses have been damaged by wood rot attaching to the exterior wood panel. This paper provides an overview of finished and ongoing work in order to identify the cause of these problems. In field tests, the moisture conditions were measured in panels coated with different paint systems. The infl...
S Hjort
Treatability and retainability of two important bamboo species - borak and jawa of Bangladesh
2002 - IRG/WP 02-40248
Preservative treatment has been carried out with five different concentrations, i.e. 3%, 4%, 5%, 6% and 7% and durations, i.e. 2 days, 4 days, 6 days, 8 days and 10 days, at different moisture content, i.e. green and air-dry, and different direction of penetration, i.e. radial and both radial and cross-section for jawa and borak. It has been observed that retention of CCB is always higher in jawa ...
M N Islam, A K Lahiry, M O Hannan
Fungal resistance of smoke-dried Cryptomeria japonica wood
1998 - IRG/WP 98-40118
Performance of smoke dried wood on fungal resistance was studied. The maximum temperature of the smoke seasoning was 80-90°C in the drying room and 70-80°C within the wood for 6 days during the treatment for 15 days. Decay resistance of smoke-dried Cryptomeria japonica wood was evaluated using a brown rot fungus, Tyromyces palustris. Weight losses of untreated wood, smoke-dried wood, and smoke-d...
K Yamamoto, I Momohara, T Nishimura
Biological resistance of phenol-resin treated wood
1990 - IRG/WP 3602
Biological resistance of PF (phenol formaldehyde resin) - treated wood has been tested in relation to the resin properties, wood species and biological factors. When tested using water-soluble PF (mol. wt. 170), ca. 10% RI (resin impregnation) was enough to suppress the decay of Japanese cedar (Cryptomeria japonica) and western hemlock (Tsuga heterophylla) blocks exposed to Tyromyces palustris (br...
M Takahashi, Y Imamura