Abstract
The reservoirs of tank farms and oil storages are structures of increased fire danger, the accidents in which lead to severe economic, environmental and social consequences.The article details the cause of tank fires during the repair work. One of the ignition causes is bitumen mastic, used for waterproofing foundations and walls of the tank. Increasing the autoignition temperature makes it possible to increase the fire safety of vertical steel tanks. For this purpose, work was done to add various binders to the bitumen mastic.The results of calculating the self-ignition temperature of bitumen and limestone mixture, the results of calculating the autoignition temperature of bitumen and pumice mixture, and the results of calculating the autoignition temperature bitumen and sodium salt mixture are presented. As a result of the estimation of the self-ignition temperature of bitumen with additives, the addition of limestone is the optimal way to reduce the fire hazard of waterproofing on the bitumen base of the foundation of vertical steel tanks for oil storage.To verify the reliability of the autoignition temperature values obtained by calculation, laboratory studies were carried out for a mixture of bitumen and limestone.
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