Your search resulted in 210 documents. Displaying 25 entries per page.
Effect of nanoparticle impregnation on the biological durability of wood
2022 - IRG/WP 22-30772
This study evaluated the efficacy of five different nanoparticles (zinc-oxide, zinc-borate, silver, copper-oxide, copper-borate) applied with different concentrations against the brown rot Coniophora puteana and the white rot Coriolus versicolor. The generally…
M Bak, R Németh
Utilization of Pressure Treated Lumber in Cross Laminated Timber Manufacture and its Impact on Bondline
2022 - IRG/WP 22-40953
Mass timber building construction is increasing dramatically across North America which presents challenges to these structures not seen in Northern Europe. Large parts of the United States harbor termites and existing mass timber building technologies that re…
G Presley, C Wainscott, J Valenti, S Noble
Long-term field exposure of wood-plastic composites processed on a commercial-size extruder
2020 - IRG/WP 20-40894
Wood-plastic composites (WPC) contain wood fiber (or flour), thermoplastics and additives and are exposed to UV light, moisture, and biological deterioration in outdoor installations. Accelerated laboratory tests can help to predict the durability of WPCs, but…
R E Ibach, C M Clemmons, N M Stark
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…
M Toroko, N-Y Su
Protecting Sustainable Wood Infrastructure ̶ Improving the Performance of Poles, Piles, Ties & Timbers with Dual Treatments
2019 - IRG/WP 19-30735
Wood is by far the best structural material in terms of environmental impact, as shown by a number of LCA studies. This environmental impact superiority can be improved if the longevity of the commodity is extended. The main durability concern in large cross-…
J Lloyd, A Taylor, C Brischke, N Irby, M Manning
Economic and Alternative Preservative Research with an Overview of its Impact on the Dynamics of Wood Tie Markets and Railroads
2019 - IRG/WP 19-30751
This presentation will discuss the Railway Tie Association’s (RTA) efforts in economic research for the North American wood tie industry, along with decades-long research into improving wood preservation processes and its resulting economic impact for railro…
J C Gauntt
2018 Railway Tie Survey and the Non-Hazardous Secondary Materials Rulemaking Activities
2019 - IRG/WP 19-50352
This presentation will discuss a survey AAR recently completed on the management of used crossties in the North American rail industry. Approximately 23 million new wood ties are purchased and installed in the North American rail network every year. The presen…
R Fronczak, S Smith
Performance if internal remedial treatments to arrest fungal attack in poles and large timbers
2018 - IRG/WP 18-40834
Internal remedial treatments have been used to arrest internal fungal attack in utility poles and other large timbers. Water diffusible systems and volatile fumigants have both been used for this purpose. While both work, it is important to understand the perf…
J J Morrell
Termite resistance of wood-plastic composites made with acetylated wood flour, coupling agent or zinc borate
2018 - IRG/WP 18-10917
There is little published scientific literature on the laboratory or field testing of wood-plastic composites (WPC) against termite attack. Therefore, the objective of this research was to investigate termite resistance (both laboratory and field) of 5 differe…
R E Ibach, Y S Hadi, C M Clemons, S Yusuf
Liquefied wood polyols: a bio-based preservative for protection of wood from fungal decay
2018 - IRG/WP 18-30725
The liquefaction of wood is one of promising approaches in utilization of woody waste which is generated during primary and secondary processing of wood and liquefied wood having various application including bio-based preservatives. The biological degradation…
A Kumar, G Vijaylakshmi, S Singh Chauhan
An overview of The Wood Preservation Industry in South Africa
2018 - IRG/WP 18-50343
South Africa boasts a total land area of 1,22 million km2 or 122 million hectares of which approximately 1% is cultivated with commercial plantation forests. The species planted are exotic species i.e. pine, eucalyptus and wattle. The commercial forests suppl…
Bruce Breedt
Influence of organosilicon compounds and nanocellulose treatment on dimensional stability of waterlogged elm wood
2017 - IRG/WP 17-10891
Commonly used agents for waterlogged wood consolidation (including the most popular polyethylene glycol) have proved ineffective and even dangerous to the preserved objects, jeopardising their integrity. Finding new, effective alternatives for safe preservatio…
M Broda, B Mazela, I Dąbek, A Dutkiewicz, H Maciejewski, R Markiewicz, M Grzeszkowiak, S Jurga
Decay Resistance of MDF Manufactured with Huntite- Hydromagnesite and Zinc borate
2017 - IRG/WP 17-30710
The objective of this study was to evaluate the effectiveness of some mineral based fire retardants on decay resistance of Medium density fiberboard (MDF). Two mineral based chemicals containing (Huntite/Hydromagnesite) and zinc borate (ZB) were used at two di…
U E Başer, D Ustaömer, Ö Özgenç
Borate and Copper Naphthenate Dual Treatment of Bridge Timbers-Borate movement over time
2017 - IRG/WP 17-40795
Preservative treated wooden bridge ties in the South Eastern USA have a service life of about 15 to 20 years, which falls well below the average service life of 40 years of railroad cross ties (sleepers). It has been shown that cross tie life is significantly…
J-W Kim, J D Lloyd
Dual Borate and Copper Naphthenate Treatment of Bridge Timbers:- Potential Performance Enhancements and Cost Savings
2017 - IRG/WP 17-40797
Dual treatment technology combining diffusible preservatives with oil borne preservatives, widely used for crossties in the USA, has now also been commercialized with bridge ties/timbers. In order to understand the implications of these changes, the historic s…
J Lloyd, C Brischke, R Bennett, A Taylor
Five-year evaluation of a field trial of Eucalyptus grandis poles treated with zinc and boron
2017 - IRG/WP 17-30721
Round Eucalyptus wood treatment in sequential stages with inorganic borates and metal salts (zinc sulfate and boric acid+borax) was studied; the aims were to form an insoluble precipitate of zinc borate inside wood and to reduce treatment costs by performing t…
C Ibáñez, A Camargo, C Mantero, M Rabinovich
The termite resistance of wood impregnated with nano-zinc oxide and nano-zinc borate dispersions
2016 - IRG/WP 16-30691
In this work, the effects of the impregnation with nano-ZnO and nano-ZnB dispersions on the termite resistance of European beech wood were investigated. Three different concentrations (namely 0.5%, 1% and 2%) of the above two materials were tested. Water leach…
C Lykidis, T de Troya, M Conde, J Galván, G Mantanis
Fabrication and characterization of MicroPCMs filled wood-plastic composites: Effects of polyethylene glycol on melamine–formaldehyde shell material
2016 - IRG/WP 16-40728
Microencapsulated phase change materials (MicroPCMs) containing dodecanol were fabricated using melamine-formaldehyde (MF) or polyethylene glycol 200 modified melamine-formaldehyde (PMF) resin as the shell materials by in situ polymerization. Wood flour/high-d…
Xi Guo, Jinzhen Cao
Incorporation of raw boron minerals to protect particleboard against decay and mold fungi, termites and insects
2016 - IRG/WP 16-40729
This paper evaluated the biological performance of particleboards incorporated with the raw boron minerals ulexite and colemanite against decay, mold fungi, termites and insect larvae in comparison with that of particleboards with zinc borate, or boric acid pl…
S N Kartal, E Terzi, P Gerardin, C M Ibanez, T Yoshimura
Remedial ground-line treatment of CCA poles in service. A final report after 60 months' testing
1989 - IRG/WP 3534
…of poles treated with boron rods, boric acid paste and borate/glycol.
B Henningsson, H Friis-Hansen, A Käärik, M-L Edlund
Remedial treatment of difficult to access timber in buildings
2015 - IRG/WP 15-40691
The quest to understand remedial treatment for timber framing begun following the ‘leaky building crisis’ in New Zealand which came to prominence in 2000. Several in-situ remedial treatment products are used in New Zealand. However, effectiveness of these…
T Singh, I Simpson, D Page
Steam accelerated borate diffusion: Optimizing dry tie treatment
2015 - IRG/WP 15-40713
A small laboratory study was carried out which demonstrated that dry wood dip treated in a high concentration borate solution could not be subsequently treated properly with oil borne copper naphthenate unless it was subsequently steam treated to accelerate bo…
J-W Kim, J D Lloyd
Best handling practices for wood crossties (sleepers)
2015 - IRG/WP 15-40714
Wooden crossties (sleepers) dominate the rail industry in the USA. Most ties are hardwood treated with oil-borne preservatives using pressure treatment. Incipient decay (called ‘stack burn’) commonly develops during the pre-treatment drying process and red…
N Irby, J Lloyd, A Taylor, J Watt
On-site remediation treatments for framing timber in leaky buildings
2014 - IRG/WP 14-20549
Weathertightness failures in New Zealand buildings due to the combined effects of cladding choices, design and construction faults and the use of untreated framing timber has led to the so called ‘leaky building syndrome’. The latest estimated cost of the…
T Singh, D Page, A Bennett
Cost effective extension of service life of bridge tie (sleepers) - Effectively applying borate during Boulton conditioning and treatment with copper naphthenate
2014 - IRG/WP 14-30637
Current longevity of creosote treated wooden bridge ties in the South Eastern US is about 15 to 25 years, which is well below of the average service life of 33-50 years of railroad ties. Such short service life increases costs associated with maintenance of ra…
J D Lloyd, T Chambers, J-W Kim