History and Applications of Asbestos Minerals
Explore the fascinating history and versatile applications of asbestos minerals, including their use in building materials, fire-proofing, insulation, and more. Learn about ancient uses dating back to Scandinavian remains, Greek-Roman innovations, and modern global production trends. Discover the properties and hazards associated with asbestos through a curated collection of images and historical references.
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Presentation Transcript
Ch. 5. ( ) (hazard)
Asbestos: asbestoz : (serpentine & amphiboles) , , (White, brown, blue & others) File:Asbestos with muscovite.jpg File:Blue asbestos.jpg File:Asbestos1USGOV.jpg crocidolite File:Asbestos fibres.jpg chrysotile Asbestos fibre tremolite From http://en.wikipedia.org/wiki/Asbestos
Properties Application examples Building materials- interior and outside Fire-proof materials, e.g. cloths Seals for heaters and ovens Heat insulators Fire resistance, flame retardance, heat insulation Insulators for pipes and electrical devices Commutators Electric insulation Chemical filters, Paints Gaskets Experimental apparatuses Resistance against chemical reactions (corrosion) Sound absorption Sound absorbing board
B.C. ca. 3,000 Scandinavian remains used in porcelain and filler among the logs 1C : Greek island Evvoia Asbestos mining querry Early Greek-Roman: unflammable clothes and building materials Pliny the Elder: Thought to be used for the protection from the curse Pliny the Elder (23-79), a.k.a. Caius Plinius Secundus, Gaius Plinius Secundis. Author of the grand encyclopedia "Naturalis Historiae". 5
: : , , : , phoenix+tile+iranian+1270s+from+met+museum Saramanda on a tile from ancient Iranian heritage http://www.metmuseum.org
, From the film Jesus Christ Superstar 8
19C: USA & Canada in 1860 s Quebec, Canada, in 1879 . 20C: 1970 s :
Global production (10,000 ton/year) Japan (ton/year) China Korea
https://www.statista.com/statistics/264924/world-mine-production-of-asbestos-since-2007/https://www.statista.com/statistics/264924/world-mine-production-of-asbestos-since-2007/
World Asbestos Resources Reserve Base Country (By Principal Countries) Brazil Canada China Kazakhstan Russia USA Zimbabwe Other Countries World Total Moderate Large Large Large Large Large Moderate Large Large Source : Mineral Commodity Summaries, 2004.
World Asbestos Producers 2001 Country 2002 2003 (By Principal Countries) Production of Asbestos(in '000' tonnes) Brazil 173 195 231 Canada 262 216 174 China 258 220(e) 210(e) Kazakhstan 271 291 353 Russia 735 775(e) 878(e) Zimbabwe 119 168 130 Other Countries World Total 82 135 24 1900 Source : World Mineral Production. 1999-2003. 2000 2000
http://www.counterview.net/2013/11/financial-mnc-identifies-jaiprakash.htmlhttp://www.counterview.net/2013/11/financial-mnc-identifies-jaiprakash.html
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