Your search resulted in 1106 documents. Displaying 25 entries per page.
Performance of boron-treated radiata pine in above ground field tests in New Zealand
2006 - IRG/WP 06-30406
Boron treatment was approved for exterior, above ground use in New Zealand in 1958, provide treated commodities were painted with a three-coat paint system. Above ground tests of rail units and L-joints were established at the NZ Forest Research Institute (now Scion) between 1967 and 1980 to monitor performance of boron treatment in relation to that of untreated and CCA-treated timber.
Results sh...
M Hedley, D Page
Performance of Preservative Treated Parallel Strand Lumber in Marine Exposures.
2006 - IRG/WP 06-30407
The performance ACZA treated Douglas-fir and CCA southern pine parallel strand lumber (PSL) was studied in marine exposures in Florida or Oregon. While materials treated to retentions below the recommended levels for marine exposure were attacked in Oregon, properly treated panels of either species performed well. Panels treated with these same chemicals and exposed in Florida experienced attack ...
J J Morrell, C S Love, P Merrick
Measuring Soil Respiration as a New Approach to Describe the Interaction Between Wood (Treated and Untreated) and Microbiologically Active Soil
2006 - IRG/WP 06-20344
Soil respirometry was employed to examine the relationship between both the performance of copper organic preservatives in contact with and the amount of carbon dioxide evolved from soil and the effect of wood treated with preservatives on carbon turnover in soil. Wood was treated with a range of copper organic preservatives intended for use in ground contact as well as an organic preservative in...
I Stephan, W Mierke
Performance of borate-treated lumber after 8 years in an above-ground termite field test in Hawaii
2006 - IRG/WP 06-30390
We report eight years of field study results from a protected above-ground field test in Hawaii simulating the sill plate (dodai) used in conventional Japanese housing construction. Field tests were established in both Hawaii and Japan to examine the efficacy of disodium octaborate tetrahydrate (DOT, 2% and 3% BAE shell and through) wood treatments. In Hawaii, chromated copper arsenate (CCA, 4 kg...
J K Grace, A Byrne, P I Morris, K Tsunoda
Water analysis in chemicals, wood or chemically treated wood using a new analytical method for selective water detection
2006 - IRG/WP 03-30391
Water or moisture content analysis can be a challenging task in many applications. However, knowing accurately the type of water which can be found in a given sample or product can provide important information about a chemical compound used for wood treatment and especially about the treated wood sample.
Moisture content in wood plays an important role in fungal growth and it needs to be extensi...
R Craciun, D Taylor
Biological resistance of didecyl dimethyl ammonium tetrafluoroborate (DBF)-treated wood in soil-bed and Basidiomycetes tests
2006 - IRG/WP 06-30393
This study evaluated the decay resistance of treated wood with a new quaternary ammonia compound, didecyl dimethyl ammonium tetrafluoroborate (DBF) in laboratory soil bed and Basidiomycetes tests. Treated sugi sapwood specimens with DBF at various concentration levels were first subjected to soil bed tests using two types of soil. The specimens subjected to soil bed tests were then used for Basidi...
S N Kartal, C Brischke, A O Rapp, Y Imamura
Performance of borate-treated lumber in a protected, above-ground field test in Japan
2006 - IRG/WP 06-30395
This document is supplemental to the previous IRG document (Tsunoda et al. 2004).
An experiment to simulate the sill plate (dodai) of the Japanese houses was conducted at the termite field test site of the Research Institute for Sustainable Humanosphere of Kyoto University in Kagoshima Pref., Japan where two economically important subterranean termite species [Coptotermes formosanus Shiraki and R...
K Tsunoda, A Byrne, P I Morris, J K Grace
Preliminary screening of a boron based wood preservative for biological efficacy (fungicidal) in treated timber
2006 - IRG/WP 06-30396
The resistance of Pinus radiata D.Don sapwood blocks, treated with a boron based preservative, to attack by five wood destroying fungi (Fomitopsis lilacino-gilva, Coniophora olivacea, Gloeophyllum abietinum (boron resistant), Serpula lacrymans and Perenniporia tephropora) was investigated. A phenyl pyrazole termiticide (fipronil) was also incorporated into the formulation to examine if its presen...
S R Przewloka, J A Hann, P Vinden
Exposure of CCA and ACZA treated parallel strand lumber to marine borer attack in northeastern and southeastern waters of the United States of America
2006 - IRG/WP 06-30400
Southern pine and Douglas fir Parallel Strand Lumber (PSL) panels were treated with chromated copper arsenate (CCA) or ammoniacal copper zinc arsenate (ACZA), respectively and exposed in a marine environment in Massachusetts (northeastern USA coast) for 7 years. Similarly treated panels were also exposed to a site on the Atlantic coast Florida (southeastern USA) for the same period. In the northe...
B Goodell, P Merrick, J Jellison, Y Qian
Long term marine performance of ACZA treated Hem fir in Krishnapatnam harbour, east coast of India
2006 - IRG/WP 06-30409
The performance of Hem fir (Tsuga heterophylla) and Southern pine (Pinus sp.) treated with ammoniacal copper zinc arsenate (ACZA) and copper dimethyldithio carbamate (CDDC) at two retention levels of each preservative was assessed in tropical marine waters at Krishnapatnam harbour on the east coast of India. Panels treated with ACZA of lower loadings (23.1 Kg/m3) had failed in 38 months while the ...
B Tarakanadha, K S Rao, J J Morrell
Paintability and gluability of wood treated with arsenic-free and chromium free preservative treatments
2006 - IRG/WP 06-40342
The objective of this project was to study, in comparison with traditional CCA treatment, the paintability and gluability of wood treated with arsenic-free and chromium-free preservative treatments.
Four formulations, all certified CTB P+, were selected in accordance with their representativeness of the preservative product market: one CCA reference formulation and three chromium and arsenic free...
L Podgorski, G Legrand
Characteristics of treated oriented strand lumber using recycle chips
2006 - IRG/WP 06-40343
The Kyoto Protocol for preventing global warming has come into effect, and the Cabinet Council was decided on the amount of carbon dioxide exhaust to be reduced in Japan. Moreover, the recycling of demolition waste wood is mandated under the “Construction Material Recycling Law” as one of the mechanisms for Japan to form the recycling society. The law encourages the utilization of demolition w...
T Shibusawa, A Miyatake, K Yamamoto, K Hashimoto, H Sonobe
Performance evaluation of Borax: Boric Acid treated Green bamboo through new VAC-FRI and conventional processes
2006 - IRG/WP 06-40327
Amongst giant arborescent grass bamboo is the only versatile member containing lignocellulosic materials like wood. Therefore it offers almost parallel uses where wood is traditionally an established material. The wood scarcity, environmental role of our natural forests, longer rotation cycle of plantation species, ban in felling, the ever growing utilization demands of wood to the tune of 3.2 mil...
S Tripathi, S N Nautiyal
The Effect of Wick Action upon Moisture Distribution in Ellagate Treated Pinus radiata Wood
2006 - IRG/WP 06-40328
Sapwood stakes of Pinus radiata D. Don were treated with water-soluble tetraguanidinium, tetracholine and tetrakis-benzyltrimethylammonium ellagates. The effect of these treatments upon moisture distribution was investigated by wick action. Given that chemical reactions within the wood substrate between nutrients and treatment solutions may alter the properties of the wood with regard to moistur...
S R Przewloka, B J Shearer, J A Hann
Furfurylated wood - An alternative to Preservative-treated wood
2006 - IRG/WP 06-40349
Chemically modified wood is currently being marketed as a non-toxic alternative to traditional preservative treated wood (wood impregnated with biocides). Over the last decade the authors have developed modernised processes for wood modified by furfurylation. These new systems do not add metals or halogens to the product, which is important for an environmentally acceptable product. This presentat...
S Lande, M H Schneider, M Westin, J Phillips
Resistance of DMDHEU-treated pine wood against termite and fungi attack in field testing according to EN 252. Results after 30 months
2006 - IRG/WP 06-40354
The aim of this study was to determine the effectiveness against decay and termite attack of pine sapwood treated with pure and modified DMDHEU in a field test according to European Standard EN 252. Some of the treatments tested were able to increase, within the period of the test reported (30 months), the resistance of the wood both to micro-organisms and termites. The curing process seems to be ...
S Schaffert, L Nunes, A Krause, H Militz
Thermal decomposition behavior of CCA-treated wood for safe disposal and the safe recovery of heavy metals through pyrolysis
2006 - IRG/WP 06-50238
If we could estimate the chemical changes in heavy metals by temperature in chromated copper arsenate (CCA)-treated wood during pyrolysis, it is expected that we could solve the environmental problems of heavy metals, which may occur during pyrolysis, and therefore, the thermal decomposition behavior of effective elements of CCA-treated wood was examined to find a safe disposal method. First, CCA-...
Dong Won Son, Dong-heub Lee, Sun-hae Cheon, Myung Jae Lee
Laboratory Leaching Tests to Study the Effects of Post-Treatment Storage Periods on CCA Leachability and Fixation in Treated Permeable and Refractory Malaysian Hardwoods
2006 - IRG/WP 06-50240
The biological resistance and environmental safety of CCA-treated wood relies on the extent of post-treatment storage fixation of CCA in wood prior to being utilized. A study on the comparative leachability (fixation) of CCA-treated refractory and permeable heartwoods of 3 Malaysian hardwoods subjected to different post-treatment storage (fixation) periods of up to 4 weeks, at 2 laboratory leachin...
A H H Wong, H C Lai, N P T Lim
A Prediction of Arsenic Groundwater Concentrations Influenced by Construction and Demolition Debris Landfills in Florida Containing CCA-Treated Wood
2006 - IRG/WP 06-50242
Groundwater fate and transport models can provide an indication of the potential impacts of arsenic from the infiltration of leachate from unlined C&D debris landfills containing CCA-treated wood. A solute transport model, Migration of Organic/Inorganic Chemicals (MYGRT), was chosen to predict groundwater contaminant concentrations at specified locations from a hypothetical source (C&D lan...
J Jambeck, T Townsend, H Solo-Gabriele
Wood decay fungi from New Zealand ‘leaky’ buildings: PCR identification and laboratory decay tests of wood preservative-treated Pinus radiata (Part 1)
2007 - IRG/WP 07-10620
Fungi colonising Pinus radiata D. Don framing timber of ‘leaky’ New Zealand buildings were isolated to produce pure cultures. Mycelia from these cultures on agar media were collected to extract DNA. To identify the fungi to the species level, polymerase chain reaction (PCR) with primer pairs ITS1-F and ITS4 were performed followed by sequencing of the internal transcribed spacer (ITS) region. ...
D Stahlhut, R L Farrell, R Wakeling, M Hedley
Detecting fungal DNA in treated and non-treated wood
2007 - IRG/WP 07-10621
Isolating fungi from wood has long involved culturing on selective media followed by identification using various keys. This process can be cumbersome, costly, and, most importantly, not always capable of detecting all of the fungi present. The recent development of molecular methods for isolation and identification of fungi has created tremendous opportunities for expanding our knowledge of the...
C Freitag, M Freitag, J Morrell
Potential for controlling carpenter ants in utility poles with borates
2007 - IRG/WP 07-10623
Carpenter ants (genus Camponotus) are important scavengers and predators in the ecosystems in which they occur. Because they excavate and tunnel into wood, carpenter ants are considered structural pests in many parts of North America where they overlap with human activity. The excavation of extensive galleries in wood by carpenter ants can seriously compromise the physical properties of wood in ...
M Mankowski
Bifenthrin recovery from glue-line-treated plywood
2007 - IRG/WP 07-20355
Plywood and laminated veneer lumber (LVL) can be protected from termite damage by addition of bifenthrin to the adhesive used in product manufacture. However, conditions associated with this manufacturing process may lead to deterioration or immobilisation of the active ingredient. In order to determine compliance with treatment specifications, it is important that the concentration of a preservat...
J Norton, L Stephens
Assaying Pentachlorophenol-treated Wood Using XRF
2007 - IRG/WP 07-20362
A study was conducted to evaluate the effect of oil type on the performance of test posts treated with oil-penta and exposed in DeQueen, AR for forty years in ground contact. The original assays for the poles were done by lime ignition, a practice used sparingly today in treating plants or by independent inspectors, in part due to the complicated analysis procedure and chances for error. XRF ins...
H M Barnes, C R McIntyre, D W Bullock , M H Freeman, G B Lindsey
Quantitative Determination of Cyproconazole in Wood treated with Tanalith CY
2007 - IRG/WP 07-20369
The HPLC method has been widely applied to quantitative determination of cyproconazole in preservative solutions. However, HPLC assay has not been successfully employed to determine cyproconazole content in treated wood. Some extractives from treated wood hinder cyproconazole determination because they have a similar retention time to that of cyproconazole on an HPLC chromatogram. In addition, ...
I Momohara, T Miyauchi, M Mori