Asbestos is the name of a group of minerals that have been used as insulation material, especially in building materials and vehicle brakes. "Chrysotile asbestos includes amosite, crocidolite, tremolite, anthophyllite asbestos, actinolite asbestos and any of these materials have been chemically treated and / or modified." (OSHA osha.gov sheet).
The earliest known use of asbestos dates back over 5000 years and were used in items such as clothing and hats and shoes cremation .* Even thousands of years, the dangers of asbestos .** The commercial benefits noted, however, were considered high risk and continued use. There are many archaeological discoveries of the shrouds, wicks for lamps, and clothing made of materials that contain asbestos.
The use of asbestos as insulation increased dramatically during the Industrial Revolution (1820-1870) and many asbestos mines / quarries have been opened for mining of mineral (s). The use of asbestos was widely used in factories, railways and shipyards to insulate against heat and flame. Asbestos has been used to insulate pipes Firebox steam locomotive boilers in factories and on ships and in various building materials.
In the 20th century, asbestos was used much more widely. It has been used in fire-resistant coatings for many materials. It was used in drywall, roofing shingles, furniture, appliances, bricks, concrete and mortar. The year 1900 showed that the widespread use of materials containing asbestos in vehicle brake pads and clutch plates and even the elevator brake linings. Many schools and theaters were also shades of asbestos ceiling tiles due to their fireproof and sound reducing properties. It is estimated that approximately 3,000 different products from materials that contain asbestos .*** The period from 1940 to about 1978 saw the use of asbestos products used almost exclusively by the need to use heat or sound. In fact, EPA estimates that there are still 107 000 733 000 buildings and schools in the United States, which contain asbestos .**** The EPA does not attempt to even the impact of the number of residential asbestos.
