Characteristics of asbestos mineral ✔✔-Naturally occurring -Thermal properties (heat stability, thermal, electrical and acoustic insulation) -Resistance to chemical, thermal and biological degradation -Absorption capacity - Tensile strength What type of asbestos is the fibrous serpentine ✔✔Chrysotile (white asbestos)- Most common type found in schools Two categories of asbestos minerals and their characteristics ✔✔1. Serpentine- curly, wavy, sheet-like 2. Amphibole- rod-like, straight, chain-like Name the 5 amphiboles ✔✔Amosite Tremolite Actinolite Crocidolite Anthopyllite Asbestos Applications ✔✔-Roofing -Thermal and electrical insulation -Cement pipe and sheets -Flooring -Gaskets -Friction materials (brake pads/shoes) -Coatings and compounds - Plastics, textiles, mastics, thread, fibre jointing and millboard Categories of ACBM ✔✔-Surfacing Materials -Thermal System Insulation -Miscellaneous Materials Asbestosis ✔✔"white lung" a disease that causes scars on the lungs. Not a cancer. Marker disease. Only caused by asbestos. Friable ACM ✔✔ACM that can be crumbled, pulverized, or reduced to powder by hand pressure. Example: sprayed-on ceiling insulation. Friable ACM cannot be made nonfriable Non-friable ACM ✔✔ACM that cannot be pulverized under hand pressure. (If sawed, drilled, stripped, or sanded the material may become friable.) Example: vinyl-asbestos floor tile.
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