Your search resulted in 1835 documents. Displaying 25 entries per page.
Statistical analysis of 40 years of preservative in-ground stake testing in Australia
2014 - IRG/WP 14-20552
…outdoor purposes. For decades, a wide range of methods and chemicals have been developed to increase the resistance of wood against degrading microorganisms and termites. Preservative treatment has a long and widespread tradition in wood protection. Proper testing of the effectiveness of such preservatives is based…
J Van den Bulcke, L J Cookson, I De Windt, W Li, J Van Acker
New Method for Pretreatment of Railroad Crossties
2014 - IRG/WP 14-40675
…in the USA and remains today as the most widely used wood preservative for this application. One of the few shortcomings of creosote as a preservative is its inability to penetrate many of the refractory hardwood species which make up the majority of crossties in the USA. Lack of full penetration often leaves the…
A S Ross, R W Clawson Jr
The Technical Criteria on Biological Evaluation of Wood Preservatives for Use Category C4.1 in Southern China
2012 - IRG/WP 12-20481
…management of the People's Republic of China, wood preservatives belong to agrochemicals. The establishment of registration system on wood preservatives would be benefit to management of preservatives, including the market entrance and safety insurance to the human beings, livestock and the environment…
Xingxia Ma, Mingliang Jiang
Termite resistance of copper-based preservative supplemented aspen strandboards
2012 - IRG/WP 12-30594
…of aspen strandboards treated with various copper-based preservative systems was evaluated in field exposure tests. Five copper-based chemicals or zinc borate were blended into aspen furnish at three retention levels prior to pressing. Tebuconazole or 4,5-dichloro-2-N-octyl-4-isothiazolin-3-one (DCOI) were added…
J J Morrell, C Vidrine, A Preston, L Jin
Scale-up of a chemical process for copper-based preservative-treated wood wastes recycling
2012 - IRG/WP 12-50286
…of this process to various mixtures of copper-based preservatives-treated wood wastes at pilot scale (80 L). The mixture of copper-based preservative-treated wood wastes was defined in order to represent wood waste stream evolution in the next decades. At the end of the leaching process, more than 98% of…
L Coudert, L Gastonguay, J F Blais, G Mercier, P Cooper, P Morris, A Janin, N Reynier
Non Toxic Remedial Treatment of Bamboo Structures/Furniture
2010 - IRG/WP 10-40516
…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…
S Kumar
Trace chemicals used for studying fluid permeability of wood
2010 - IRG/WP 10-20442
…within the wooden matrix is essential for successful preservative performance. For a better understanding of permeability of the wooden matrix, trace chemicals are utilized to study particle distribution and fluid flow within the wooden tissue and structures that inhibit fluid and particle flow. This revue…
K Zimmer, E Larnøy, O Høibø
Stress wave and visual analysis of treated and non treated fence posts after 15 years in field test
2010 - IRG/WP 10-20449
…were applied to assess wood resistance and chemical preservative efficiency. In Brazil visual analysis is frequently applied in field tests while NDE (Non Destructive Evaluation) techniques have been very little used. We assessed the sound level of treated and non treated wooden fence posts after 15 years in…
A Florian da Costa, R Faustino Teles, J Costa Gonçalves
A comparison of the chemistry of alkaline copper and micronized copper treated wood
2010 - IRG/WP 10-30528
…could be identified in wood treated with micronized copper preservatives. The spectra were compared to those of sawdust treated with aqueous suspensions of basic copper carbonate. The results of the study clearly show that soluble copper is produced relatively rapidly in wood treated with aqueous suspensions of basic…
Wei Xue, P Kennepohl, J N R Ruddick
Degradation of Carbon-Based Preservatives by Black-stain Fungi
2010 - IRG/WP 10-30533
…fungi are known to exhibit resistance to carbon-based preservatives. However, the cause of this resistance is unclear. The fungi may have mechanisms to tolerate these chemicals, or they may be able to degrade and detoxify them. Fungi capable of degrading carbon-based preservatives are of interest for possible…
R Stirling, P I Morris
Chemical protection of historic timber structures: Results and future needs
2010 - IRG/WP 10-40487
…with PCP, borax, potassium carbonate, boric acid, Pinotex chemicals in the 1970-80. Long-term analysis revealed that in many cases the deep-treatment with PCP and borax chemicals proved to be efficient only for a short period of time. Profound activity of wood-borers was noted in the structures deep-treated with…
M Kisternaya, V Kozlov
Preservative Treatment of simul (Bombax ceiba) Veneers with Hot and Cold Water Solution of borax-boric acid by Soaking Process
2010 - IRG/WP 10-40528
…were treated with different concentrations of water- borne preservatives borax-boric acid (BB) by soaking process for different time periods. In the case of hot water treatment, it was found that the average retention of preservative chemicals increased gradually with the increasing treatment period from 20 minutes…
K Akhter, Md Abul Hashem, S Akhter
Wood preservative obtained by recycling – preliminary selection of leaching inhibitor
2008 - IRG/WP 08-50252
…metals. The potential use of the above solution as wood preservative was demonstrated by means of assays both of fungicidal activity -using white and brown rot fungi- and of insecticidal effectiveness –using termites. However, the application procedure assessed in previous work did not result in durable…
C Ibáñez, C Mantero, G Cecchetto, M Rabinovich, M Cerdeiras
Role of Global Cooperation in Wood Protection for Conserving Forest Resources
2007 - IRG/WP 07-50249
…for continued use of these products. The issues of new chemicals, treatments for wood based composites, migration of chemicals from treated wood, and the disposal of these products at the end of their useful life are all outlined. The potential for the IRG to serve as the focus for research discussion as well as…
J J Morrell, G Deroubaix
Chapter 9 - Preservation of borak bamboo
2007 - IRG/WP 07-10635-09
…CCA and CCB have been
obtained in pre-dried Borak bamboo (Bambusa balcooa Roxb. See
Fig. below), abundantly grown in Bangladesh, with full-cell pressure
process. The treated bamboo can be used as building materials; the
sufficient treatability ensured its long-term best utilization at ground
contact and indoors.…
A K Lahiry
Silver – The Next Generation Wood Preservative
2007 - IRG/WP 07-30419
…research to see if silver could also be an effective wood preservative to be used in place of chromated copper arsenate (CCA) now prohibited for use in the United States and elsewhere for treated wood manufactured for consumer uses such as decks, playground equipment, and picnic tables. Commercial silver-based…
J R Ellis, K Jayachandran, D Nicholas
Silver as a Wood Preservative Environmental Requirements and Concerns
2007 - IRG/WP 07-30420
…for wood preservation be tested by exposure of such chemicals to aquatic and avian life forms. For preserved wood installations to be placed in aquatic environments such testing is likely to be quite extensive.
Companies interested in registering new wood preservative products containing silver can make…
J R Ellis
Preservative treatment of Golla cane (Daemonorops jenkinsiana) by pressure process
2007 - IRG/WP 07-40379
The feasibility of preservative treatment of golla cane (Daemonorops jenkinsiana (Griff) Mart). by pressure process has been studied using water borne preservatives CCB (copper-chrome-boron). Cane samples of three different lengths 1m, 2m and 3 m. were treated at different…
K Akhter, M Hoque Chowdhury
Use of Moisture Meters with Treated Wood
2007 - IRG/WP 07-40382
Drying wood treated with waterborne preservatives after treatment to near outdoor EMC conditions improves its physical performance characteristics. This is primarily due to the reduced checking, splitting and warping which can occur when wet wood, particularly if restrained from shrinking by…
W B Smith, Hwan Myeong Yeo, C Stark, B Morey, C Tascioglu, P Schneider, D Herdman, M Freeman
Reduction of Environmental Toxicity Through Eco-friendly Wood Biopreservative
2007 - IRG/WP 07-50243
Many chemicals are used today to enhance the durability of wood and wood-derived products that are very important in our life. Such chemicals are copper, chromium, arsenate, zinc, etc. Though these preservatives are useful to protect wood from biodeterioration,…
A Humayan Kabir, M Firoz Alam
Chapter 12 - Treatment Groups of Bamboo
2007 - IRG/WP 07-10635-12
Study on distribution of CCA in three major bamboo species in
Bangladesh, full-cell pressure treated at green and dry conditions
revealed two treatment groups and some treating principles. Higher
adequate treatment for ground and water contact use is only…
A K Lahiry
Chapter 13 - Slow fixation of CCA-treated bamboo
2007 - IRG/WP 07-10635-13
Chromated copper arsenate (CCA) leachability tests on full-cell
pressure impregnated (with 2-3% CCA solution) and slow dried (six
months air-drying under cover) bamboo block of three major
bamboo species of Bangladesh revealed initial insignificant leaching…
A K Lahiry
Chapter 14 - Accelerated fixation of CCA-treated bamboo
2007 - IRG/WP 07-10635-14
…and steamed bamboo slices of airdried
borakbamboo (Bambusa balcooa Roxb.) of Bangladesh,
revealed almost complete fixation in steamed (accelerated fixation)
and air-dried (3 weeks, slow fixation) bamboo slices compared to
moderate to low fixation in boiled (86.18% fixation), oven-dried
(67.11% fixation),…
A K Lahiry
Performance of Preservative Treated Parallel Strand Lumber in Marine Exposures.
2006 - IRG/WP 06-30407
…species performed well. Panels treated with these same chemicals and exposed in Florida experienced attack regardless of retention, primarily due to attack by preservative tolerant pholads. Panels treated with either ACZA or CCA and creosote performed well at this site and would be the preferred treatment for…
J J Morrell, C S Love, P Merrick
Water analysis in chemicals, wood or chemically treated wood using a new analytical method for selective water detection
2006 - IRG/WP 03-30391
…Probe molecules based on boron, commonly used as wood preservative will be used to explain and describe the instrument capabilities and the type of scientific information which can be obtained.
R Craciun, D Taylor