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Journal of Tashkent Institute of Railway Engineers

Abstract

It was shown that cements of the same strength grade substantially differ at initial dynamics of their interaction with water and structure-forming capacity din the course of stiffening. The necessity was substantiated for current control of Portland cement consumer properties in operation with cement from the same vendor. It was proved that the amount of added plasticizer for obtaining plastisized concrete on the basis of cements of the same strength grade from different vendors may differ several times. The efficiency was demonstrated of input control of Portland cement structure- forming capacity at plants manufacturing concrete and ferroconcrete products, using modified plastometer designed by P.A.Rebinder.

First Page

10

Last Page

13

References

Yudovich, B.E. Effect of cement plant technical condition on cement construction technical properties in concretes. Energy-saving technologies in cement manufacture // 2nd Scientific Reading on Cememt: a collection of reports. – Saint Petersburg: Alit Scientific Technical Center and Giprotsement-Nauka Press. 2006. P. 78-82.

Rebinder, P.A. On a method of cone immersion for characterization of plastic body structural mechanical properties. // Doklady Akademii Nauk SSSR. 1949. V. LXIV. № 6. P.835-838.

Runova, R. Formation of plastic strength of slag-alkaline cement pastes with polyols // In Proc. of the International Conference on Quality Strategy in Industry and Education. 2013. P. 131-136.

Nikolaev, A. P. & Kondrashchenko & О. V., Kondrashchenko, V. I. Control of cement grout plastic properties. // International Scientific Conference on Far East Con, ISCFEC.2018. V. 945. P. 70–75.

Nikolaev, A.P. & Kondrashchenko, E.V. The topicality of internal control of Portland cement binding properties. Vistnyk Odeskoii Derzhavnoii Akademii Budivbytstva I Arkhitektury. 2020, № 78. P. 108-117.

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