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RINGS OF FIRE <br /> Char: A solid residue from the process of pyrolysis, Crumb Rubber: Fine particles of vulcanized rubber <br /> containing carbon blacks and incombustible resulting from mechanical or cryogenic size <br /> materials found in tires. reduction of scrap tires or other rubber products. <br /> Checking: Minute cracking in the surface of rubber Cryogenics: The use of low temperature exposure <br /> caused by aging and oxidation. to alter the physical properties of a material. <br /> Cryogenically processing scrap tires decreases the <br /> Chemical Equilibrium: Fuel conversion is equal to rubbers' natural resiliency, allowing it to be shattered <br /> the available fuel, heat, and oxygen. upon impact. <br /> Chipped Tire: Pieces of scrap tires that have a Cure: To vulcanize; also time and temperature <br /> basic geometrical shape and are generally smaller conditions used to vulcanize rubber. <br /> than 6 inches by 8 inches in size. <br /> Decontamination: A process that cleans <br /> Chronic Exposure: The low level exposure to contaminants from personnel, clothing, equipment, <br /> hazardous chemicals over a long period of time. and apparatus. <br /> Civil Engineering Application (for scrap tires): Dengue: Acute epidemic febrile disease which lasts <br /> The use of scrap tires in lieu of natural occurring 5-7 days. A virus that is transmitted by mosquitos. <br /> materials (rock, sand, dirt) used in construction. Incubation period is 3-15 days. Symptoms:two fever <br /> periods with eruptions similar to measles, severe <br /> Clam Shell: Refer to Bagel Cut. pain in muscles and joints, seldom fatal. <br /> Combustion: Chemical reaction of a material Density: A term that denotes the weight per unit <br /> through rapid-rapid oxidation with the evolution of volume of a substance. The density of any <br /> heat and light. In contrast, slow oxidation is a substance can be obtained by dividing the weight of <br /> chemical reaction producing heat, but no light. a substance by its volume. <br /> Commercial Tires: Truck and industrial tires. Discarded Tire: A worn or damaged tire which has <br /> been removed from a vehicle. <br /> Containment: Afire fighting operation that prevents <br /> the further spread of a fire. Disposal Fee: Refer to Tip Fee. <br /> Conflagration: A large uncontrollable fire. Often Drown-It: A strategy discussed in text that suggests <br /> associated with large structural fires of more than using copious amounts of water on a tire fire. <br /> one block or large forest fires. <br /> Encephalitis: Inflammation of the brain. It may <br /> Control: The overall fire fighting operation of occur as a sequence to diseases like measles, <br /> confinement and suppression. A fire is under control chicken pox, or other diseases, or through <br /> when the advance of the fire has been halted.. transmission by mosquitos. Toxic encephalitis <br /> results from metal poisoning, as in lead poisoning. <br /> Converted Tire: A scrap tire which has been <br /> manufactured into a usable commodity other than a Exposures: Any structure, equipment, inventory, or <br /> tire. environmental habitat threatened by fire or <br /> contamination. <br /> Cords: The strands of wire or fabric that form the <br /> plies and belts in a tire. Extinguishment: To put a fire out completely. <br /> Crude Rubber: Natural, unprocessed rubber. Fabric: Textile cords used in tire manufacturing. <br /> 62 <br />