THE PROCESS OF CREOSOTE
Vineyard posts, or vineyard poles as they are known locally are wooden poles used in the growing of grapes used in the production of wine, are part of the R&B Group product mix. Treated posts have an expected service life of 25-40 years and combine strength and durability with ligh”
In addition to toxicity to fungi, insects, and marine borers, it serves as a natural water repellant. Its commonly used to preserve and waterproof cross arms, pilings, telephone poles, transmission poles, marine pilings, and fence posts. The poles are then treated according to full cell process as follows:
Treatment Vessel is charged with poles and the treatment vessel is sealed.
A vacuum is drawn and maintained for an adequate period.
Without increasing the pressure, the preservative is introduced at the appropriate temperature.
Allow the cylinder to fill to capacity.
Apply hydraulic pressure and maintain this pressure (approx 10bar) until the required absorption is attained.
Release the pressure and pump surplus preservative from the treatment vessel.
Apply a final vacuum to "dry poles" of excess preservative
After treatment, poles are laid out for final inspection where the poles are inspected for defects and drilled to check the depth of penetration. Acceptable poles are then tagged and stacked according their length and diameter class, ready for dispatch.
Creosote is purchased from Arcelor Mittal and FFS Refiners in tanker form. The product adheres to SANS 616 type 2 and 3 specification respectively.
R&B Group is a timber business that harvests, processes and pressure treats wooden poles for the domestic and international markets.
