AbstractAbout AuthorsReferences
To increase strength during initial stages of hardening, a polyfunctional additive, including a superplasticizer and salt – accelerators of hardening, has been developed. The highest value of cement concrete strength is observed at the combined use of a soda-sulfate mixture and sodium nitrite. The kinetics of concrete hardening with a complex additive has been studied, an increase in the strength was determined not only at the first but at the subsequent stages of hardening. Changes in the structure of the modified complex additive of cement stone are well visible on X-ray photographs at all the stages of hardening and in good agreement with the data about its strength.
N.M. KRASINIKOVA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
R.R. KASHAPOV, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
N.M. MOROZOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
V.G. KHOZIN, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
R.R. KASHAPOV, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
N.M. MOROZOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
V.G. KHOZIN, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
Kazan State University of Architecture and Engineering (1, Zelenaya Street, Kazan, 420043, Russian Federation)
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2. Khozin V.G., Morozova N.N., Sibgatullin I.R., Sal’nikov A.V. Modification of cement concrete by small alloying additions. Stroitel’nye Materialy [Construction Materials]. 2006. No. 10, pp. 30–31. (In Russian).
3. Rakhimov R.Z., Rakhimova N.R., Gaifullin A.R. Properties of cement stone with glinite additives. Stroitel’nye Materialy [Construction Materials]. 2015. No. 5, pp. 24–26. (In Russian).
4. Fedorova G.D., Vinokurov A.T., Timofeev A.M. Experimental study of strength of concrete with the complex additive. Stroitel’nye Materialy [Construction Materials]. 2012. No. 4, pp. 70–71. (In Russian).
5. Tarakanov O.V., Tarakanova E.O. Influence of curing accelerators for the formation of the initial structure of cement materials. Regional’naya arkhitektura i stroitel’stvo. 2009. No. 2, pp. 56–64. (In Russian).
6. Vovk A.I., Zamuruev O.V., Androsov P.D., MikheevS.V., Dubyakov T.V. The new accelerator for energy-saving technologies. Tsement i ego primenenie. 2015. No. 1, pp. 94–97 (In Russian).
7. Мagarotto R., Zeminian N., Roncero J. An innovative accelerator for precast concrete. Crystal seeding to master the current challenges of precast industry. BFT. 2010. No. 1, pp. 4–9.
8. Krasinikova N.M., Eruslanova E.V., Khozin V.G. Claydite foam concrete of the dry mixture for foam. Izvestiya KazGASU. 2012. No. 4, pp. 302–306. (In Russian).
9. Kashapov R.R., Krasinikova N.M., Morozov N.M., Khozin V.G. Influence of a complex additive on cement stone hardening. Stroitel’nye Materialy [Construction Materials]. 2015. No. 5, pp. 27–31. (In Russian).
10. Kashapov R.R., Krasinikova N.M., Khozin V.G., Shamsin D.R., Galeev A.F Complex additive based on a mixture of soda-sulfate. Izvestiya KazGASU. 2015. No. 2, pp. 239–243 (In Russian).
11. Gorshkov V.S., Timashev V.V., Savel’ev V.G. Metody fiziko-khimicheskogo analiza vyazhushchikh veshchestv [Methods of physical and chemical analysis of binders]. Moscow: Vysshaya shkola.1981. 335 p. (In Russian).
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