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Central Asian Problems of Modern Science and Education

Article Title

DEVELOPMENT OF INGIBITOR COMPOSITION OF CORROSION FOR PROTECTION OF STEEL ARMATURE

Abstract

For over 150 years, reinforced concrete structures have been used in construction. A long-term study of the durability of reinforced concrete structures in various operating conditions shows that dangerous damages caused by the development of reinforcement corrosion, which pose a threat to public health, are often encountered. Corrosion of reinforcement is usually caused by exposure to reinforced concrete by atmospheric chemical factors caused by the presence of aggressive components in concrete, such as sulfates, carbonates, chlorides. Today in domestic practice there are over 100 different compositions for inhibiting the corrosion of reinforcing steel. The best results are achieved with the use of inhibitory additives to the cement of sodium and calcium nitrites. The disadvantages of the existing anticorrosive materials are their high cost and low accessibility, as well as the impossibility of using them to combat multicomponent salt and acid corrosion. In the conditions of the Aral Sea region, in the production of reinforced concrete products, highly saline water and quartz sand are used, which contain chloride and sulphate salts of calcium, magnesium and sodium in various amounts (Table 1). With the presence of the listed salts in the composition of reinforced concrete products, steel reinforcement is subjected to severe corrosion. Therefore, one of the important tasks is the protection of steel reinforcement in concrete products produced in the conditions of the Khorezm region and the Republic of Karakalpakstan

First Page

104

Last Page

116

References

[1]. Alekseev S.N., Ratinov V.B., Rosenthal N.K. and others. - M.: Stroiizdat, 1985, - P. 272. [2]. M. Drumond, M. Aoyama, C.-L. Cheh and D. Robert, J. Wood Chem. And Technol., 9, 4 (1989) 421. [3]. Epstein Ya. V., Ahmin E.I., Raskin M.N. Rational areas of use of hydrolytic lignin // J. Wood Chemistry. - 1977. - №6. - P. 24 [4]. A. Parta and P. K. Mukhopadhyay, J. Ind. Chem. Soc., 60 (1983) 237. [5]. Shorigina N.N., Reznikov V.M., Elkin V.V. Reactivity of lignin. - M.: Science, 1976. – P.368. [6]. Patent No. 2064021. Inhibitor of hydrogen sulfide corrosion and hydrogen absorption of metals and method for producing it. Rasulov Z.G., Yuriev V.M., Prigoda S.V. Russia. MKI S 23F 11/14. Declared.25.08.92 Publ. 20. 07. 96. BI number 20 [7]. Andropov L.I., Makushin E.M., Panasenko V.F. Inhibitors of corrosion of metals. - Kiev: Technique. – 1981 P.183-185. [8]. Jumaniyazov M.J., Kurambaev Sh.R. Jumaniyazova D.М. Study of physicochemical characteristics of gossypol resin and its modified forms // Jurn. "Young scientist" Moscow -2014. -№ 12 (80) p. 57-61. [9]. Fatkhullaev E., Jalilov A.T., Minsky K.S., Marin A.P. Complex use of secondary products of cotton processing upon receipt of polymeric materials. - Tashkent: Fan, 1988. –P.144. [10]. Jumaniyazov M.J., Dyusbekov B.D., Khodjaev O.F. Qora metallar yuzalarini zaghlashdan himolyalash uchun tarkib. // Patent RUz. IAP 00551 2012. 116 [11]. Jumaniyazov M.J. New modifications of nitrolignin and synthesis of complex compounds based on them. Tez. doc Rep. scientific prak conf. "Actual problems of anal. himii". - Termez, 2002. P. 196. [12]. Jumaniyazov M.J. Kurambaev Sh.R., Jumaniyazova D.M. Antikorrosion composition for the modification of metal rust, Jurn. ―Material composition‖ 2015. - № 4. –Tashkent. - P. 47-49

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