STUDY UNIT 12: Mineral and inorganic fibres ASBESTOS

Question 1

Asbestos

Answer 1

Asbestos is a natural fibre, used in the form in which it is found in nature. It is a mineral fibre that is completely non-flammable; it is being replaced due to health hazards associated with its use.

Question 2

History

Answer 2

Asbestos has been known to human beings since the days of early Greece and Rome.

Question 3

Health Hazard

Answer 3

For health reasons the use of asbestos in clothing is prohibited. The danger of using and working with asbestos has received much attention. Tiny pieces of asbestos can easily be inhaled into the lungs. This can lead to asbestosis (a chronic lung condition), and also increases the risk of certain kinds of liver and lung cancer.

Question 4

Its most important property

Answer 4

Its most important property is its ability to withstand temperatures of up to 3315 oC. Asbestos fabrics are used in industry only if no alternative is available.