Your search resulted in 6 documents.
Balance of arsenic and recycling
2002 - IRG/WP 02-50189
Instead of importing considerable quantities of arsenic to Europe, it would be sensible to utilize the arsenic recovered in the recycling process in the manufacture of CCA-wood, in the metallurgical industry as well as in other ways. When copper is also processed into a form easy to utilize, it may be possible to utilize chrome as well. When these developments are implemented, it can be said th...
Interim balance after 20 months of lap-joint exposure
1999 - IRG/WP 99-20164
The application of natural resins and integrated resin systems to improve the performance of Pinus sylvestris was assessed in a lap-joint test according to DIN V ENV 12037 (1996). Lap-joints of Pinus sapwood were exposed at the test field in Hamburg (Germany) in May 1997. The treated lap-joints were assessed with regard to the performance of the resin treatments out of ground. The exposure of lap-...
M Sailer, A O Rapp, R-D Peek, A J Nurmi, E P J Beckers
Disproportionate absorption of different constituents of CCA salts
1988 - IRG/WP 3484
Results of preliminary experiments carried out to study selective absorption of different constituents of CCA salts and sludge formation in commercial treatment, using Terminalia myriocarpa and Pinus kesia timbers, are reported in this paper. The objective of these experiments is to evolve simple and practical methods to prevent/minimise sludge formation and differential absorption of the constitu...
V R Sonti, S Sonti, B Chatterjee
The lasting dehydration of wood treated by bifluorides worked up in Diffusec noticed by a continual drying of the wood
1999 - IRG/WP 99-30196
After an immersion of sound wood in a solution of Diffusec, in which a combination of acid potassium and ammonium bifluorides = FHF- in dissociated form is present, their potassium and ammonium fluoride ions together with the bifluoride ion = (FHF-) diffuse into the wood. They make use of the woodmoisture available as O-H-O bonds directly attached to the cellulose in the wood fibres to attract the...
H F M Nijman
Residual CCA levels in CCA treated poles removed from service
2000 - IRG/WP 00-50152
Fifty-two CCA treated poles removed from service after 1 - 50 years were sampled at different depths from their below ground and above ground zones and the preservative levels and mass balances related to the location in the pole and pole age. Generally CCA retentions were still well above the toxic threshold for decay in even the oldest poles. This confirms the good leach resistance of CCA and th...
P A Cooper, D Jeremic, J L Taylor
Chapter 14 - Accelerated fixation of CCA-treated bamboo
2007 - IRG/WP 07-10635-14
Chromated copper arsenate type C (CCA-C) fixation study on impregnated (with adequate w/v 6% CCA solution) then boiled, oven-dried, normal, air-dried and steamed bamboo slices of airdried borakbamboo (Bambusa balcooa Roxb.) of Bangladesh, revealed almost complete fixation in steamed (accelerated fixation) and air-dried (3 weeks, slow fixation) bamboo slices compared to moderate to low fixati...
A K Lahiry