We are a registered asbestos contractor with the South African Department of Labour.
A substantial number of cooling towers in South Africa still make use of asbestos sheets which are used as cooling tower fill and drift eliminators, as well as asbestos piping which serves as distribution piping. Lekwa Cooling Tower Services specialises in the removal and replacement of these asbestos items.
“Asbestos” comes from ancient Greek and means “non-burnable” and is the name applied to six naturally occurring minerals that are mined from the earth. Once extracted from the earth, asbestos-containing rock is crushed, milled and graded. This produces long, thread-like fibres of material. What appears to the naked eye as a single fibre is in fact a bundle of hundreds or even thousands of fibres. In fact, some individual fibres may be up to 700 times smaller than a human hair. Because asbestos fibres are so small, once released into the air, they may stay suspended for hours or even days. Asbestos fibres are also virtually indestructible. They are resistant to chemicals and heat and are very stable in the environment. They do not evaporate into air or dissolve in water, and they are not broken down over time.
Asbestos is probably the best insulator known to man and because it has so many useful properties it has been used in over 3,000 different products and proved particularly useful in the construction industry.
The health effects associated with asbestos exposure have been studied for many years. Results of these studies show that inhalation of asbestos fibres leads to increased risk of developing several diseases.