Problems of fixation of CCA-preservatives in palm-wood

IRG/WP 3338

H Willeitner, K Brandt

Palm-wood may be used for posts and poles where it needs proper treatment for long time use. Based on observations by W. Killmann on low CCA-fixation in palm-wood, samples of Jubaea-palm grown in a Greenhouse at Hamburg, have been treated in two different series with a 4% solution of CCA-type B. After 1-16 weeks of storage the blocks were split into sticks of 1-2 mm² and leached. In all series 50% of the chromium and copper content of the individual blocks was leached independent of the time of storage, whereas simultaneously treated pinewood samples showed complete fixation after 4 weeks of storage.


Keywords: PALMWOOD; CCA-B; FIXATION; PERMANENCE; TROPICS; LEACHING; JUBAEA CHILENSIS; ANALYSES; CHROMIUM; COPPER

Conference: 85-05-12/17 Guaruj√°, Brazil


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