Effect of Petroleum Products on Physical and Mechanical Properties of Concrete and the Reliability of Load-Bearing Structures
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Petroleum products, which are widely used in technological processes, fall on concrete and reinforced concrete elements of structures and gradually impregnate them. This can have a negative impact on their reliability and mechanical safety. The influence of oil products with different viscosities on the deformative properties of concrete under axial compression has not been fully studied. Techniques and recommendations for assessing the reliability of concrete and reinforced concrete structures do not take into account changes in their initial deformation properties. This constrains the ability to predict the probability of failure-free operation of load-bearing concrete and reinforced concrete structures in industrial buildings. The aim of the study is to determine the effect of petroleum products with different viscosity (lamp kerosene, industrial oil I-30A, diesel fuel, furnace masut M-40) on the longitudinal and transverse deformation of concrete under axial compression. The study is based on the analysis and generalization of experimental data. It is experimentally established that longitudinal and transverse deformations depend on the viscosity of the impregnated petroleum product and the value of axial compression. Empirical models are developed which enables to calculate the index of mechanical safety as a measure of reliability of bearing concrete and reinforced concrete structures taking into account the operating conditions. The obtained results allow to make scientifically grounded forecast of deformation properties change of bearing concrete and reinforced concrete structures impregnated with oil products and to give quantitative characteristic of their technical condition. Research in this direction is being continued.
KeywordsViscosity Safety Stress Load-bearing structures
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The author is grateful to Tamara I. Gusakova, Professor of Peoples’ Friendship University, for her work in translating the manuscript into English.
The publication was prepared with the support of the «RUDN University Program 5-100». The Ministry of Education and Science of the Russian Federation.
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