Your search resulted in 104 documents. Displaying 25 entries per page.
Laboratory Study of Relative Leachability of Chromated Copper Arsenate Preservative from Treated Woods among Soil Types of Sarawak
2014 - IRG/WP 14-50307
Wood and soils are important natural resources from the environment and serves mankind well respectively as structural materials and natural platform erecting such materials. With shortfalls of naturally durable timber species for protected in-ground uses under Malaysian environments, Chromated Copper Arsenate (CCA) treated woods are widely used instead, incurring serious potential threats of pres...
A H H Wong, P K F Chong
Natural durability of Chilean commercial wood exposed to the action of marine borers
2015 - IRG/WP 15-10849
Results of field experiences of natural durability of ten commercial wood, exposed to the action of Bankia martensi (Stempell) in the South coast of Chile are presented. Tested species were seven types of native wood and three types of exotic ones. Test specimens of standard dimension of 0.02 x 0.045 x 0.23 m with three replications by species were used. The degree of attack was determined accord...
R Carmona C, C Osorio, A Almuna
The situation of the industrial protection of wood in Argentina (La situación de la protección industrial de la madera en Argentina)
2015 - IRG/WP 15-30675
Argentina holds 33 million hectares of native forests and 1.2 million hectares of cultivated forests, which make it the 3rd Latin American country with the largest surface of cultivated forests of the region. (Ministry of Industry, 2012). The industrial impregnation of wood through vacuum pressure was first implemented in our country in the year 1932, and currently there are over 100 active plants...
D A Gherscovic
Laboratory evaluations of woods from Pakistan and their extractives against Postia placenta and Trametes versicolor
2016 - M Mankowski, B Hassan, A Bishell, G Kirker
Natural durable wood species are those which exhibit innate tolerance to wood decay organisms such as fungi and termites. The goal of this study was to evaluate 4 wood species (Dalbergia sissoo, Cedrus deodara, Morus alba and Pinus roxburghii) from Pakistan in order to determine their resistance to both a model brown (Postia placenta) and white (Trametes versicolor) rot fungus compared to a durabl...
M Mankowski, B Hassan, A Bishell, G Kirker
Commercial Timbers of Kenya
2016 - IRG/WP 16-10876
The global timber trade has for years been too familiar with an assortment of available African timbers, reputed for their appearance in terms of colour, grain, pattern and durability. African forests are fast disappearing through over-exploitation as a result of demand for agricultural land. Kenya, the home of some of these valuable hardwoods, has been similarly affected, with its forest land cov...
R Venkatasamy
Characterization of waste from Pinus radiata generated during industrial thermal-treatment
2016 - IRG/WP 16-20586
The thermal-treatment is an established chemical-free process to modify wood, improving the durability and physical properties of wood through its service life. During the hydro-thermolysis several reactions from wood components occur, releasing volatile and non-volatile compounds from wood to the chamber. Once the process is accomplished, solid residues agglomerate below the wood load and gaseous...
R Herrera, D Thomas da Silva, R Llano-Ponte, J Labidi
Combustion and thermal characteristics of Korean wood species
2016 - IRG/WP 16-40727
This study examined the combustion and thermal characteristics of domestic woods in Korea. Wood was confirmed by a cone calorimeter according to the KS F ISO 5660-1 standard. The combustion properties of the wood were measured in terms of the heat release rate (HRR), total heat released (THR), mass lose rate (MLR), and ignition time (time to ignition; TTI). Also, the thermal properties were measur...
Huyun Jeong Seo, Jung-eun Park, Dong Won Son, Won-Joung Hwang
Efficacy of lignocellulosic materials for Removal of Cation and Anions from Industrial and Urban Wastewater
2016 - IRG/WP 16-50321
The adsorption of Ca, Zn, Na, Cd (II), Cr (III) and No3 ions from industrial and urban wastewater and aqueous solutions by poplar (Populusnigra) sawdust, cotton linter, zeolite and expanded perlite were examined on the basis of a batch adsorption technique. The results revealed that application of sawdust, cotton linter, perlite and zeolite are effective in improving elimination of Ca, Zn, Na ions...
M Akhtari, M Ghorbani Kohkandeh, H Borazjani
State of the art of industrial wood protection in Portugal
2016 - IRG/WP 16-30703
This work intended to give a perspective of industrial wood protection in Portugal. A survey was made of the companies treating wood mainly for use classes 3 and 4 such as autoclave treatments with biocides and wood modification procedures. Currently there are 23 companies with 33 production plants with an autoclave installed for wood preservation by impregnation. There are also two companies prod...
L Nunes, J Carmo, J Vicente, B Esteves
Durability Testing of a Cattail (Typha spp.) based Insulation Material against Termite Attack
2017 - IRG/WP 17-10879
The use of insulating materials is particularly important in the construction industries, especially with regard to the use of wood and naturally occurring substances. The use and durability of natural materials as insulating materials is of keen interest to many construction experts, and continues to be a topic of intense investigation. It is generally agreed that the use of natural substances ...
M Dass, W Unger, T L Woods
The First Description of Soft-rot Cavity in Waterlogged Archaeological Woods by a Japanese Wood Anatomist Prof. F. Onaka in 1935
2017 - IRG/WP 17-10885
The term soft rot, which was caused by Ascomycetes and Deuteromycetes, was first used by J G Savory in 1954. Soft rot decay can be characterized by cavities within secondary cell walls align along the cellulose microfibrils. Our recent literature search revealed, however, that Prof. F. Onaka in Kyoto University described the soft rot cavities in the waterlogged archaeological woods in detail from ...
Yoon Soo Kim, K Yamamoto
Oak maturation casks at the Rodenbach brewery, an industrial heritage of the Flemish Community requiring protective measures
2017 - IRG/WP 17-10898
Brewery Rodenbach has world-renowned cask halls with close to 300 oak casks, some of these big maturation casks are 150 years old and this is protected as part of the industrial heritage of the Flemish Community. Since some of these maturation casks or “foeders” were the last decades no longer fully in use some parameters of their physical condition might have increased incidence of fungal dec...
J Van Acker, I De Windt, R Ghequire
Effects of heat treatment on sound absorption coefficients in nanosilver-impregnated and normal solid woods
2017 - IRG/WP 17-40770
Effects of impregnation with silver nano-suspension as well as heat-treatment on sound absorption coefficients (AC) were studied in tangential direction of five different solid woods based on their importance. AC was measured at two frequencies of 250 and 500 Hz. A 400 ppm nanosuspension was used for the impregnation; silver nanoparticles had a size range of 30-80 nm. Based on the obtained results...
A Esmailpour, J Norton, H R Taghiyari, H Zolfaghari, S Asadi
Decay resistance variability of European wood species thermally modified by industrial process
2017 - IRG/WP 17-40807
Thermal modification is now considered as a new ecofriendly industrial wood modification process improving mainly the material decay resistance and its dimensional stability. Most industrial thermal treatment processes use convection heat transfer which induces sometimes heterogeneous treatment temperature propagation within the oven and lead to the heterogeneity in treatment efficiency. Thus, it ...
K Candelier, L Pignolet, S Lotte, A Guyot, E Cuny, B Bousseau, M-F Thévenon
Analysis of Wood Industrial Pollutants Based on Emission Coefficients
2017 - IRG/WP 17-50325
Accurate calculation and estimation pollutants is one of the basic tasks of environmental protection .The low carbon economy put forward However，low carbon economy data of wood industry is lack. The paper research on emissions and pollution of Chinese wood industry. The results showed dust emissions from much to least is: fiberboard, plywood and particle board; the amount of industrial ...
Chu Jie, Ma Ji, Zhangjing Chen
On the natural durability of RED MERANTI for window frames as a function of gross density wood
2018 - IRG/WP 18-10927
MERANTI is a wood species belonging to the family Dipterocarpaceae, in the genus SHOREA (Shorea spp.). The genus has approximately 196 species with four subgenera. The subgenus RUBROSHOREA is commonly named RED MERANTI (RM) and is found on the Malayan Island of Sarawak, Indonesia, with approximately 65 varieties (Symington 1943). According to Brazier (1956), the distribution of gross densities wi...
K Hasse, W Unger, T L Woods
The anatomical determination of wood samples found in the “Fürstengräber” from Lübsow (Poland)
2018 - IRG/WP 18-10930
The paper presents the results of anatomical research identifying three wooden fragments from the “Princes Graves” (“Fürstengräber”) in Lübsow, Poland. The research demonstrates that the wooden fragments are typical of wood harvested from European forests.
The physicals conclusions are important for the research of Jan Schuster, from the University of Lodz, Institute of Archeology, Pol...
J Schuster, W Unger, T L Woods
Chemical composition and termiticidal activity of Khaya ivorensis stem bark extracts on woods
2018 - IRG/WP 18-30723
The genus Khaya is extractives rich, but the extractives in the stem bark are among the most abundant, accessible and utilised materials in Nigeria. These extractives are of considerable interest for wood protection because of their pesticidal properties. In this study, the chemical constituents of Khaya ivorensis stem bark (KISB) and their termiticidal activity were investigated on Triplochiton s...
G A Adedeji, O Y Ogunsanwo, F S Eguankun, T O Elufioye
In-line quality control of the film thickness in industrial coating processes for exterior cladding
2018 - IRG/WP 18-40835
The production of industrially coated wood cladding has been strongly increasing in Scandinavia during the last years. In the beginning of this development, industrial coating processes included solely the application of pigmented primers; these however provide only a short protection of the wood surface and the application of a top coat is required during the first 6 to 12 months after mounting t...
U Hundhausen, M Slabohm
GDR3544 “Science du Bois” - Academic and Industrial French Partnerships on Wood Science
2019 - IRG/WP 19-50362
The wood sciences are currently practiced by a very diverse community of disciplines, themes and institutional contexts of different actors. The Research Group in Wood Sciences (GDR3544 "Sciences du Bois") was created in 2012 by the National Center for Scientific Research (CNRS), and renewed from 2016 to 2020.
The objectives of GDR " Science du Bois " are to manage the coordination of wood scienc...
J Gril, R Marchal, K Candelier
An Update on the Status of Industrial Heavy-Duty Preservatives in Europe
2022 - IRG/WP 22-30762
Creosote has been used for over 150 years for preservation of heavy duty industrial timbers such as railway sleepers, utility poles, and agricultural posts. The regulatory regimes in place today across Europe (eg EU & GB Biocidal Products Regulation (BPR)) require a detailed assessment of the environmental and human health properties of wood preservatives at both the active substance and product l...
S Uphill, H Griffiths, M Giannuzzi, A Hughes
Premature adhesion failure of exterior wood coatings – The influence of substrate temperature at coating application and moisture accumulation during storage
2022 - IRG/WP 22-40937
The present study aimed at extending the knowledge about premature coating failures of industrially finished wood cladding. Two potential factors were studied: the influence of substrate temperature at coating application and moisture accumulation during storage on the adhesion of waterborne coating systems. In the first experiment, 4 batches of wood specimens were submitted to 4 different tempera...
U Hundhausen
Evaluation of the physical properties of heat-treated native Peruvian woods for their application as coverings in buildings located in in arid, semi-warm and humid climates
2022 - IRG/WP 22-40943
Wood is a material that has properties suitable for its use in construction: as a structural component, cladding or decorative element, however, it is necessary to have knowledge of its physical, mechanical and thermal properties in order to have a logical criterion when applying it. It is known that wood has hygroscopic properties, so it tends to absorb the relative humidity of the natural enviro...
K Ayala Castro, A Loayza Argüelles, V J Pilco Mamani
Natural durability of tropical plantation woods case in teak
2023 - IRG/WP 23-11011
Teak (T. grandis) is one of the most popular tropical timber species when it comes to the natural durability. High value of teak timber is attracting the attention to expand fast growing teak plantations, and the natural durability of plantation teak wood has been examined in various provenances of tropics. Natural durability of plantation and natural teak wood using three disks was examined throu...
K Yamamoto
Natural durability of 9 tropical species suitable for round wood timber building: fungi and termites laboratory screening tests
2023 - IRG/WP 23-11013
In numerous tropical forest species, wood properties are poorly described and wood is under-valorized. Especially very few is known about small diameter trees although they may be used, directly as round wood, in construction timber building. A selection of abundant species was done and characterization tests were performed to assess their usability as building material. The aim of this work was t...
M Leroy, K Candelier, J Damay, J Bossu, R Lehnebach, M-F Thevenon, J Beauchene, B Clair