Hot and cold treatment in fence posts of Eucalyptus globulus, Castanea sativa, Pinus nigra and Pinus pinaster
C De Arana Moncada, A M Navarrete
An analysis is made of the treatment of fence-posts of Eucalyptus globulus, Castanea sativa, Pinus nigra and Pinus pinaster by hot and cold immersion in creosote. The temperatures of the different treatments were 60, 70 and 90°C. The posts were heated for one hour and then allowed to cool for 21 hours 30 min., and finally reheated for 1 hour 30 min. The greatest absorption rates were recorded in Pinus nigra, the results in Pinus pinaster were close, and in Castanea sativa and Eucalyptus globulus they were clearly lower. The highest penetration rates were recorded in Pinus pinaster, followed by Pinus nigra, Eucalyptus globulus and Castanea sativa. The retentions showed the same pattern as the absorptions, but with smaller differences.