Your search resulted in 72 documents. Displaying 25 entries per page.
Borates as wood preserving compounds: The status of research in the United States
1989 - IRG/WP 3542
This paper describes the extensive, on-going cooperative research effort among government and university research laboratories and industry to fully evaluate the potential for borates as wood preservatives in the United States. Research is discussed in terms of laboratory evaluations, field testing and mill trials, pilot plant pressure treatment studies, and remedial treatments. Future research pl...
H M Barnes, T L Amburgey, L H Williams, J J Morrell
The limitations of legislative information distribution to the UK remedial preservation industry
1995 - IRG/WP 95-50060
The remedial preservation industry in the UK consists of companies that are rarely large enough to fit any of the definitions of small to medium enterprises (SMEs). They are faced with information on a wide range of legislation related to their industry from a bewildering variety of sources. Costs range from free to hundreds of pounds. Recent surveys have shown that a significant proportion of SME...
J M Ibbitson, G S Sawyer
The effect of synthetic pyrethroid insecticides on post-treatment emergence of Anobium punctatum
1992 - IRG/WP 92-1568
Data is presented from trials in which wood specimens, treated with a range of remedial insecticidal formulations, were aged in a roof void for 5 years and then tested for emergence of adult Anobium punctatum. The technique used followed that described in IRG/WP/2175. The results from formulations containing synthetic pyrethroids are compared with those from formulations containing the chlorinated...
R W Berry
Treatment of wood with boron esters
1995 - IRG/WP 95-30087
The treatment of wood and wood products with boron esters is reviewed. The physical and chemical characteristics of boron esters affecting the treatability of wood are discussed, in particular thermal decomposition and rates of hydrolysis. The uses and methods applying boron esters as wood preservatives include: (i) Solutions of boron esters for remedial and diffusible treatment of wood; (ii) soli...
J Romero, P Vinden, J A Drysdale
Quantification of creosote and fluoride in remedially-treated poles
1997 - IRG/WP 97-40097
Three creosoted transmission poles were put into service in 1961 and they were subsequently remedially-treated with a proprietary fluoride remedial paste formulation in 1981. The poles were removed from service in 1996 and their ground-contact regions were analysed for creosote and fluoride contents. It was found that the poles were undecayed. Creosote retentions decreased down the profiles of the...
B P Hill
Gelatin encapsulated fumigants for wood fumigations: Current research status
1985 - IRG/WP 3336
The fumigants chloropicrin (trichloronitromethane) and methylisothiocyanate (MIT) were encapsulated in gelatin as an alternative to liquid fumigant treatments for control of decay fungi in wooden utility poles. Gelatin-encapsulated MIT was stored for over 2 years under dry conditions without significant fumigant leakage. Gelatin encapsulated MIT and chloropicrin were released from capsules when pl...
A R Zahora, M E Corden, J J Morrell
A bioassay of remedially treated pole material
1987 - IRG/WP 3453
Stubs prepared from treated and untreated utility poles were installed in a test plot and pressure spade treated at the groundline with one of four preservative greases. At one and three year intervals, core samples were removed from the stubs and the improvement in the preservative efficacy due to the greases was assessed. The bioassay investigation showed that only bis(tributyltin) oxide (TBTO) ...
J N R Ruddick, L Parker
A field evaluation of chromated fluoride as a remedial treatment for creosoted wooden distribution poles
1989 - IRG/WP 3556
A commercial chromated fluoride formulation was applied by injection process to previously inoculated creosoted wooden distribution pole sections at a field site in Scotland and appraisal of the efficacy of the formulation against Lentinus lepideus was undertaken at two month and fifteen month intervals. Preliminary results suggest a rapid elimination of organisms from colonised areas. The usage o...
B King, A Bruce
Social and economocal impact of an extension of service life resulting of an adequate preventive treatment. Application to wooden components used in urban areas with a high density of population
1993 - IRG/WP 93-50001-15
Le document évalue les problèmes rencontrés en zone urbaine pour le sauvetage des constructions: coordination de la lutte, délimination des chantieres et des périmètres d'investigation, nuisances causées par les interventions, risques pour la santé, risques pour l'environnement. Coûts. Comparaison socio-économique du traitement préventif et des interventions à posteri...
A T De Lelis, G A C Lopez
Boracol 40 - A potential remedial and preservative treatment for lyctids
1983 - IRG/WP 1192
The paper reports on a preliminary assessment of the efficacy of a diffusion formulation, Boracol 40, when applied as a brush treatment: to the surface of Eucalyptus obliqua against the powder-post borer Lyctus brunneus. After a five month bioassay, Boracol 40 has severely retarded the progress of active infestations of Lyctus brunneus and has been 100 per cent effective as a preventative treatmen...
J W Creffield, H Greaves, C D Howick
Penetration Depth of Borates in Historic Wooden Structures in Virginia City Montana
2008 - IRG/WP 08-30475
Virginia City, Montana contains some of the best preserved examples of gold boom construction in the United States. Unfortunately, even the dry climate and fortuitous lack of fire have not prevented decay from claiming parts of the historic fabric. This project aims to determine if borates should be integrated into the preservation plan of the Montana Heritage Commission. Solutions of disodium ...
A A Turner
Use of Internal Remedial Treatment to Extend Wood Life at the Fort Vancouver National Historic Site
2010 - IRG/WP 10-30525
The condition of wood in a reconstructed fur trading fort was assessed over a 30 year period. Poor initial treatment had resulted in the development of extensive early decay. While supplemental treatment with chloropicrin and methylisothiocyanate had arrested the attack, the results suggested that remedial treatments were unable to completely overcome the initial problems associated with treatmen...
C S Love, C Freitag, J J Morrell
Assessment of Boracol 200RH (FrameSaver) as a remedial treatment to control decay in pre-decayed model timber frame units
2010 - IRG/WP 10-30529
Model timber frame units constructed from untreated radiata pine were pre-wetted to approximately 40% moisture content and inoculated with Coniophora puteana and Oligoporus placenta. Units were transferred to a controlled environment room maintained at 25°C and 95% RH for 7 and 10 weeks to allow two levels of decay to become established in units. Following pre-decay, units were disassembled, clea...
Mick Hedley, Dave Page, Jackie van der Waals
Protective Levels of Borates in timber Foundation Piles 5 – 18 Years after In-situ Remedial Treatment in Areas with Wet Clay Ground Conditions. The Jerbor and Eurobor Protocol, Part 1.
2011 - IRG/WP 11-30571
Timber has been used as foundation piles and grillages for decades or even centuries. Since the late 1970s a method for investigate, analyze and treat building timber foundations in soft clay grounds against decay fungus with a biocide have been developed and used by the late professor Allan Jerbo. Settling of buildings in soft clay grounds is continuously monitored and if damages to the building ...
M Theorin, K-M Bandh
Effectiveness of Water Based Bentonite-Borate Slurry for In-situ Remedial Protection of Historic Wooden Piles: The Eurobor Protocol, Part 2
2011 - IRG/WP 11-30574
The study of the biocide product Eurobor®, water mixture of boric acid, borax and sodium bentonite, aimed to verify previous findings regarding borates penetration from a clay-water mixture of foundation timber. The product was applied on samples from 100 year old timber foundation from the city of Göteborg. Although in ground for this long the timber was in acceptable god condition due to groun...
M. Theorin, K. Fimmerstad, K-M. Bandh
An assessment of soft rot in preservative-treated poles in two test sites and two network areas in New South Wales
2013 - IRG/WP 13-10801
This document presents an extended summary of recent investigations into soft rot attack of preservative treated power poles from the re-inspection of samples selected from two field sites and two in-service trials located in New South Wales, Australia. The in-ground sapwood of selected poles was assessed by probing and, after core sampling, by microscopy to determine the severity and extent of s...
W D Gardner, M A Powell, C Kirton
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 leaky building crisis in New Zealand is about NZ$11 billion.
This research was conducted to provide a better understanding of the option...
T Singh, D Page, A Bennett
Potential for migration of boron from fused boron rods used as internal remedial treatments of utility poles
2014 - IRG/WP 14-50301
The distribution of boron in Douglas-fir utility poles and in the surrounding soil was assessed over a 54 month period following application of fused boron rods. Boron levels in the wood never reached the levels that might be predicted if diffusion were to produce a uniform chemical distribution, nor did levels in the soil suggest that boron was becoming more concentrated. The results suggest th...
M Konkler, C Freitag, C S Love, J J Morrell, J Renfroe
VOC-free remedial treatment agent on organic solvent basis with surface cleaning by photocatalysis using titanium dioxide
2014 - IRG/WP 14-40651
Due to the EU Regulations according to the harmonisation of the European market of biocidal products and the EU Regulations regarding emissions of volatile organic compounds in residential properties a new VOC free yet organic solvent based remedial treatment agent is introduced including a potential method to clean up the wooden surface of remaining biocides after a remedial treatment using photo...
H Ahl, J Fromm, P Jüngel, E Melcher, M Pallaske
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 treatments is still unclear particularly in situations where not all faces of the timber can be assessed. This research was conducted to det...
T Singh, I Simpson, D Page
Brief introduction to a research project on preparations of various paste formulations from boron, fluoride and copper for supplemental treatments
2022 - IRG/WP 22-30759
Wood preservatives to be used for supplemental purposes are present in various forms such as powders, liquids, rods, pastes, or gels. Boron compounds have been receiving a lot of attention in supplemental treatments since they have good mobility in wood. Application of boron compounds via internal treatments is vital to stop decay to be occurred inside the wood since large wood elements are too th...
E E Soytürk, D Bakır, E Terzi, C Köse, S N Kartal
A non-VOC approach of solvent-based wood preservatives for remedial treatment
2016 - IRG/WP 16-30681
Solvent-based wood preservatives are the workhorses in the field of remedial treatment. Due to new European regulations on the indoor air quality there is an increasing pressure on the VOC-content on these solvent-based product types. The transfer of these European regulations into national law is left up to each European member state and handled in different ways. E.g. France has introduced a VO...
M Pallaske, S Hellkamp, P Jüngel