Your search resulted in 85 documents. Displaying 25 entries per page.
A guideline for sorting easy to impregnate Scots pine sapwood based on three treatability studies from Northern Europe
2014 - IRG/WP 14-40669
Scots pine sapwood is generally considered an easy to impregnate wood species, though it reportedly faces challenges towards a homogeneous impregnation and large variations in treatability are reported for the material.
This study comprises the results of three treatability tests that were performed on Scots pine (Pinus sylvestris) sapwood. The material impregnated was originated from a large ...
K Zimmer, E Larnøy, A Treu
Impact of early lignification of ray parenchyma cells on the treatability of Scots pine sapwood
2015 - IRG/WP 15-40706
The wood anatomy of Scots pine sapwood can influence its treatability. A microscopic analysis on the wood material from four different stands in Northern Europe was performed using tangential sections from the outer part of Scots pine sapwood. Single correlations of the ray composition and lignification state of the ray parenchyma showed the influence of these factors on radial penetration depth a...
K Zimmer, A Treu
Influence of pressure phase impregnation time on the uptake and distribution of wood preservatives in Scots pine material of diverse treatability
2016 - IRG/WP 16-40752
In spite of the general opinion that Scots pine sapwood is easy to impregnate considerable variations in treatability are reported. In order to study impregnation results of diverse Scots pine sapwood treated with increasing process times, Scots pine sapwood from two different predefined treatability groups was impregnated. A copper solution was used as impregnation agent in ten different vacuum p...
K Zimmer, B Kerfriden
A Treatability Study of Western Wood Species with Water Based Azoles and Insecticides Using Buffered Amine Oxides
2016 - IRG/WP 16-40766
The use of Western U.S. Wood Species remains small in today’s global wood product market when compared to the use of other commercially available softwoods. One reason that other fiber sources, those that may be less naturally durable or exhibit slightly inferior mechanical properties, are utilized is ease of treatment. In an attempt to ensure adequate penetration in commercially important an...
R W Clawson Jr, C N Cheeks, K A Cutler
Treatability of beechwood railway sleepers with potential creosote substitutes
2017 - IRG/WP 17-40790
Maintenance of an efficient railway infrastructure still requires the use of wooden railway sleepers, particularly because wooden sleepers have more favourable properties for intensified vibrations than concrete or steel sleepers. Creosote, used for decades for the impregnation of railway sleepers, will possibly no longer be available for this application due to European legislation. This reveals ...
N Pfabigan, E Habla, R Gründlinger
Study of the Factors Influencing the Treatability of Fir (Abies alba)
2018 - IRG/WP 18-40850
A study of some factors influencing the treatability of fir (Abies alba) was carried out in order to add better value to fir sawn timber coming from the Jura country, which is an abundant natural resource. In this part of France, fir wood as construction material is highly challenged by another softwood species, spruce Picea abies. In order to carefully assess the treatability of fir sapwood and h...
E Raphalen, J-D Lanvin, M Kutnik, T Delobel, D Michaud, C Dubois
Treatability of native and exotic alternative timber species
2019 - IRG/WP 19-40864
The service life of moderately durable species can be extended significantly if the challenge of effective treatment of refractory wood species can be overcome. Along with preservative effectiveness, the performance of preservative in treated wood depends on factors such as retention and penetration in treated wood, the wood anatomy, the uniformity of penetration and micro-distribution within the ...
D Page, T Singh
Treatability of South African-grown Eucalyptus grandis with water-borne copper azole and disodium octaborate tetrahydrate wood preservatives
2021 - IRG/WP 21-40920
This study investigated the treatability of the sapwood and heartwood of sawn Eucalyptus grandis with copper-azole (CuAz) and disodium octaborate tetrahydrate (DOT) water-borne preservatives towards improving its durability for enhanced use in structural solid wood applications. The results obtained showed that, at a moisture content of 12 ± 1%, sawn E. grandis sapwood can be impregnated to a mea...
A A Alade, Z Naghizadeh, C B Wessels
Investigating wood anatomical factors influencing the treatability of refractory southern pine- an imaging approach
2023 - IRG/WP 23-40975
Southern pine sapwood is non-durable, and preservative treatment is necessary to protect it against biological degradation. According to AS 1604.1 2021, timber products must have their sapwood fully treated with preservatives for various applications and hazard classes. However, there is a growing industry concern over the refractory sections of sapwood, which are untreated pockets of wood that do...
M Shirmohammadi, M R Karbaschi, B Hassan, W Leggate
Modification of Gmelina arborea wood for utilization in Nigeria
2023 - IRG/WP 23-40986
The level of protection achieved by any wood treatment process is dependent on achieving a sufficient uptake and penetration of the treatment chemicals. This phenomenon is also applicable when considering chemical modification of any wood species. The desired changes in physical, mechanical or durability enhancement of treated species can only be achieved beyond a superficial treatment. For this, ...
S O Olaniran, H Militz