Your search resulted in 366 documents. Displaying 25 entries per page.
Upright capillary absorption behavior of five important timbers and one bamboo species of Bangladesh
2004 - IRG/WP 04-40273
The upright or vertical capillary absorption rate of five different timber and bamboo species namely mango (Mangifera indica), kalajam (Syzygium cumini), kanthal (Artocarpus heterophyllus), sissoo (Dalbergia sissoo), mahagoni (Swietenia macrophylla) and mulibamboo (Melocana baccifera) were measured in relation to their specific gravity and duration of immersion. It has been observed that there was...
M A Islam, A K M A Bosunia, A K Saha, A K Lahiry
Laboratory evaluation of fipronil (a phenyl pyrazole) as a candidate termiticide in the protection of wood against the subterranean termite, Coptotermes acinaciformis (Froggatt) Rhinotermitidae
1997 - IRG/WP 97-10225
In this laboratory evaluation, radiata pine wood blocks (50 x 25 x 15 mm3) were impregnated with fipronil (a phenyl pyrazole) at various concentrations (0, 5, 10, 20, 40, 80, 100 and 200 ppm). Half the treated blocks underwent a leaching schedule for 5 days, while the remainder were unleached after treatment. Five replicates per treatment regime were presented to the test termite, Coptotermes acin...
B M Ahmed, J R J French, P Kwint, G Webb
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
Wooden windows, avoidance of damage via constructional measures
1990 - IRG/WP 3591
Increasing awareness of the environment reinforces the trend to use wood as a building material for windows in modern building constructions. Wood is a natural building and construction material. Under certain circumstances such as persistent humidity exceeding 30%, wood is rapidly degraded by decay fungi into CO2 and inorganic salts. The cost caused by damage (e.g. replacement of windows) represe...
R Gründlinger, K Messner
Role of cell wall structure in soft rot decay of bamboo
1995 - IRG/WP 95-10133
Models of soft rot hyphal penetration of bamboo cell walls are proposed. Soft rot hyphae show an interesting capability of penetrating the bamboo cell wall in different forms; typical longitudinal penetrating hyphae and tangentially orientated penetrating hyphae. The second form of penetration was found to be different from that normally associated with wood cell walls. The differences can be attr...
O Sulaiman, R J Murphy
The performance of CCA treatment in bamboo against decay fungi
1993 - IRG/WP 93-30027
Samples of culm wall material from young (< 6 month age) and mature (> 3 years age) culms of the bamboo, Phyllostachys virideglaucescens were treated to equivalent% w/w retentions of a CCA preservative. After fixation and leaching the treated samples were exposed to decay by Chaetomium globosum FPRL S70K, Coriolus versicolor FPRL 28A and Coniophora puteana FPRL 11E. Thin section samples of u...
O Sulaiman, R J Murphy
Long-term protection of stored lumber against mould, stain, and specifically decay: A comparative field test of fungicidal formulations
1984 - IRG/WP 3281
The problem of decay in packaged, unseasoned lumber stored for many months has become of major importance in recent years. Large financial claims have resulted from decay in Canadian lumber stored at length in seaports and storage yards of distributors. For decades acceptable protection from moulds and sapstain was readily achieved with chlorinated phenols applied at appropriate treating levels. H...
A J Cserjesi, A Byrne, E L Johnson
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
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
Preservative treatement of muli bamboo (Melocanna baccifera) by pressure process
2001 - IRG/WP 01-40194
This study was carried out in order to investigate the possibility of preservative treatment of split bamboo by pressure process. Whole bamboo is very difficult to treat by pressure process, which is the best and most dependable of all treating processes. Because it surface has a coat of impervious cutiular which make it very resistance to the penetration of liquid. Beside this it is prone to deve...
K Akhter, M Younusuzzaman, M H Chowdhury
Practicability of bioassays in the evaluation of environmental risks in wood protection
1996 - IRG/WP 96-50071
As an example for the proofing of the practicability of bioassays in the evaluation of environmental risks in wood protection the ecotoxicological behaviour of CCF-impregnated timber was examined. After vacuum pressure impregnation specimen from shaped pine poles were tested on ecotoxicological effects of leachable compounds using sensitive aquatic organisms like fish, Daphnia and algae as bioindi...
H-W Wegen
High CCA retentions and the protection of eucalypt power poles
1983 - IRG/WP 3226
Tasmanian power pole material treated to high retentions, was analysed to accurately determine the amount of CCA preservative in the timber. Material from the same disc was subsequently exposed in unsterile soil in order to determine the effectiveness of treatment. Results showed that even at high retention levels, soft-rot attack was not prevented. Fourteen further poles were sampled, but this ti...
L E Leightley, J Norton
The preventive actions of three commercial wood preservatives against Dinoderus minutus
1984 - IRG/WP 1233
Dinoderus minutus is one of the most common pest insects for the bamboos. For preventing the damages of this insect, the preventive treatment of bamboos with preservatives is necessary. But because of the environmental reasons, only limited insecticides are available in Japan. The author determined the preventive effects of three commercial products against Dinoderus minutus by the medium of the B...
K Suzuki
Determination of fixation properties by bioassays - A proposal for the assessment of safety indexes in wood protection
1990 - IRG/WP 3566
In the determination of environmental effects of chemicals tests with fishes, daphnia and algae have proved to be practicable. With respect to wood protection such bioassays are suitable to control effects of treated timber against aquatic organisms. By using the fish-acute-toxicity-test the development of a laboratory test method is described for the checking of the fixation rate of a copper-chro...
H-W Wegen
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
Efficacy of linear chain carboxylic acid anhydrides as wood protection chemicals
2002 - IRG/WP 02-30295
This paper presents an assessment of the effectiveness of linear chain carboxylic acid anhydrides namely, acetic, propionic, butyric, valeric and hexanoic anhydride, in improving the decay resistance of Corsican pine (Pinus nigra Schneid) sapwood. Wood-anhydride bond formation was verified by the increase in sample weight and volume. A brown rot fungus
[Coniophora puteana (Schum.:Fr)] was selec...
A N Papadopoulos, M D C Hale, C A S Hill
Wood protection processes in the Asean countries
1994 - IRG/WP 94-40034
This paper presents the wood processing practices in the Asean countries composing Indonesia, Malaysia, Philippines, Singapore, and Thailand except Brunei. The development of wood preservation industry in these countries started as early as 1922 to 1960. As in other industrial countries, treatment pressure with creosote of utility poles, railway sleepers, and marine pilings are the prime commoditi...
F R Siriban
Assessment of the toxicity of some copper-, zinc- and boron-based wood preservatives to the cellar fungus Coniophora cerebella Schröet
1974 - IRG/WP 242
This article reports the use of a method based on the determination of the probability of the protection of timber against destruction by fungi. By converting the probability values to probit values and plotting them as a function of the amount of preservative retained in the timber, curves of the toxic effect are obtained, enabling any timber protection probability to be assessed....
V N Sozonova, D A Belenkov
Surface Barriers for Protection of Culture and Heritage Wooden Objects from Insect Attack
2004 - IRG/WP 04-20286
Anoxic treatment is an environment friendly procedure for eradication of wood boring insects in wooden objects of cultural and historical heritage. However, after the anoxic treatment, wooden antiques remain susceptible to further insect attacks. Possible protection against insects could be provided by the so-called post-repression protective barriers. Potential coating materials for such barriers...
M Petric, M Pavlic, B Kricej, M Humar, F Pohleven
Non Toxic Remedial Treatment of Bamboo Structures/Furniture
2010 - IRG/WP 10-40516
Molds and beetles often attack bamboo furniture and structures when used in untreated or inadequate preservative treatment. Remediation or eradication of infestation often involves expensive chemicals (fumigants) and specialized methods, which are not available in villages. Novel inexpensive methods using easily available chemicals were developed for controlling such infestations. Whereas applicat...
S Kumar
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
Chapter 2 - Introduction to world bamboo
2007 - IRG 07-10635-02
In this chapter the bamboo species of the whole world along with local name, bamboo type, flowering
type, locality and uses have been presented in 20 different Tables....
A K Lahiry
Chapter 6 - Preservatives of bamboo
2007 - IRG/WP 07-10635-06
Almost all currently available oil-borne, water-borne and
compound types of preservatives suitable for the
preservation of bamboo or wood have been described along
with their classifications, applications, formulations, merits
and demerits, history of invention or discovery and
development. The preservatives suitable for wood are also
considered suitable for bamboo....
A K Lahiry
Wood protection by surface treatment of two borate preservatives, TIM-BOR® and BORA-CARE®, for the formosan subterranean termite and eastern subterrean termite
1993 - IRG/WP 93-10044
TIM-BOR® (disodium octaborate tetrahydrate: DOT, Na2B8O134H2O) and BORA-CARE® (40% DOT in ethylene glycol) are two borate products marketed for treating wood in use by brushing or spraying onto the wood surface. The active ingredients presumably diffuse into wood by the 10-15% existing wood moisture. Few data, however, are available to demonstrate the diffusion rate. Su & Scheffrahn (1991) s...
M Toroko, N-Y Su