Effectiveness of wood preservatives by IUFRO's method

IRG/WP 3305

G A C Lopez, E S Lepage, O B Neto

Pinus elliottii and Eucalyptus saligna stakes treated with 4.9; 6.9; 9.6 and 13.5 kg/m³ of CCA-A, CCA-C and CCB and with 30-50; 60-80; 90-110 and 120-140 kg/m³ of Benzotar and CNSL (cashew-nut shell liquid) were exposed in seven test sites in Sao Paulo State, Brazil. After 4 years it was concluded that the mean useful life of untreated Pinus elliottii stakes was 8 months and of untreated Eucalyptus saligna was estimated in 42 months; CCA-A, CCA-C and CCB showed better performance than Benzotar and CNSL, which, in turn, showed similar performance to fuel oil treated series; Eucalyptus saligna 4.9; 6.9 and 9.6 kg/m³ CCA-A and CCA-C treated showed better performance than Eucalyptus saligna treated with the same retentions of CCB; CCA-A and CCA-C showed similar performance for both wood species in all retentions


Keywords: IUFRO; FIELD TEST; STAKES; PINUS ELLIOTTII; EUCALYPTUS SALIGNA; BENZOTAR; CCA TYPES; CCB; CNSL; BRAZIL; SITES; TESTING; RETENTION; PERFORMANCE

Conference: 84-05-28...06-01 Ronneby Brunn, Sweden


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