TO MY PRESENTATION

Asbestos Fiber

What is Asbestos Fibre

Asbestos is a set of six naturally occurring silicate minerals, which all have in common their eponymous asbestiform habit: long (roughly 1:20 aspect ratio), thin fibrous crystals, with each visible fiber composed of millions of microscopic "fibrils" that can be released by abrasion and other processes

The History of

ASBESTOS FIBRE

Industrial scale asbestos mining began in 1878 in Thetford township, Quebec. By 1895, mining was increasingly mechanized.

Serpentine(93% of commercial use)

Amphibole(7% of commercial use)

Chrysotile

Actinolite, Amosite, Anthophyllite,

Crocidolite, Richterite, Tremolite

Asbestos Fibrous Minerals

Six Types of AsbestosAsbestos is composed of six different types of natural minerals:• Chrysotile• Amosite• Crocidolite• Tremolite• Actinolite• Anthophyllite

Most common types

CLASSIFICATION OF ASBESTOS TYPES

• Serpentine Asbestos• Amphibole• Mining• Processing

Asbestos Products Asbestos was generally processed as:

◦ Fibrous sprayed preformed

◦ Textile woven wound

◦ Mixed with a binder

Uses of asbestos in Textile

cremation cloths cremation cloths padding laundry presses and mangles brake linings

gloves aprons belting for conveying hot materials fire blankets safety clothing insulation materials and curtains

MORE ASBESTOS LOADED PRODUCTS???

Cement Pipes, Cement Boards, Sheets, Plastics Clay, Compounds, Paints, Plasters Electrical, Mechanical Products Home Use Products

◦Cigarette Filters Pipe Covering Protective clothing

Health effects THE BODY CANNOT BREAKDOWN

ASBESTOS FIBRES.

THREE PRIMARY DISEASES ASSOCIATED WITH ASBESTOS EXPOSURE◦MESOTHELIOMA

◦LUNG CANCER

◦ASBESTOSIS