Heavy concrete based on polydisperse binder with complex polymer modifier with increased performance indicators

The main task of obtaining concrete, in particular for irrigation and drainage construction, with increased performance by modifying their structure and properties with complex additives is becoming more and more relevant every year. Within the framework of these studies, issues related to the modification of the composition of heavy concrete with the use of a complex chemical additive consisting of the superplasticizer Melflux 5581 F and the water-soluble polymer additive Polydon-A were considered.
The aim of the study is to develop a scientifically based technological solution that provides the production of heavy concrete based on a polydisperse binder with a complex polymer modifier (Melflux + Polydon-A) for agricultural construction.
The object of study is heavy concrete based on a polydisperse binder with a complex polymeric modifier for agricultural construction.
Research results: The resulting modified concrete is characterized by an increase in compressive and tensile strength in bending, a conditional stress intensity factor, water absorption, water resistance and frost resistance, which makes it possible to recommend it for the production of building products and structures operating in harsh operating conditions, in particular, for trays irrigation systems.

1. Bazhenov YU.M., Demyanova V.S., Kalashnikov V.I. Modified high quality concretes. M.: Ed. Association of construction universities. 2006. 368 p.

2. Ur'ev N.B. Vysokokoncentrirovannye dispersnye sistemy, (Chemistry, Moscow, 1980).

3. Isaeva YU.V., Velichko E.G., Kasumov A.SH. Structure optimization of ultra-light cement mortar with due regard for geometrical and physicaland mechanical characteristics of components, Construction Materials, 8, 84-87(2015) DOI: 10.31659/0585-430X-2015-728-8-84-88.

4. Yаkovlev G.I., Ginuchickaya YU.N., Kizinievich O., Kizinievich V., Gordina A.F. Influence of dispersions of multilayer carbon nano-tubes on physical-mechanical characteristics and structure of building ceramics, Construction Materials. 2016. N. 8. С. 20-29.

5. Entin Z.B., YUdovich B.E. Mnogokomponentnye cementy. Nauchn. tr. // NIIcement, 107. 1994. Рp. 3-76. DOI: 10.31659/0585-430X-2016-740-8-25-29.

6. Velichko E.G., SHumilina YU.S. K probleme formirovaniya dispersnogo sostava i svojstv vysoko- prochnogo betona // Vestnik MGSU, 15(2), 235-243(2020). DOI: 10.22227/1997-0935.2020.2.235-243.

7. Samchenko S.V., Egorov E.S. Control of the properties of cement paste during its modification with a pre- hydrated cement suspension. Technique and technology of silicates. 28 (2), 54-58 (2021).

8. Samchenko S.V., Abramov M.A., Egorov E.S. Peculiarities of hydration and hardening of cement pastes with the addition of hydrated cement. Technique and technology of silicates. 27 (1), 24-28(2020).

9. Tkach E.V., Temirkanov R.I. Cement concrete with improved physical and mechanical properties based on the use of activated silica fume. Innovations and investments. 10, 289-292(2019).

10. Tkach E.V., Temirkanov R.I. Improving the physical and mechanical properties of modified concrete based on the use of chemically activated microsilica with micro-reinforcing fiber. Construction and Reconstruction. 2 (88), 123- 135(2020).

11. Samchenko S.V., Kozlova I.V., Zemskova O.V., Dudareva M.O., Shubina E.S. Comparative analysis of methods for modifying Portland slag cement with an ultrafine component, Technique and technology of silicates. 27 (4), 113-120(2020).

12. Filimonova YU.S., Velichko E.G. Study of the complex modification of heavy concrete // Construction and reconstruction. 4 (96), 107-109(2021). DOI: 10.33979/2073-7416-2021-96-4-107-112.

13. Soloviev V.I., Tkach E.V., Serova R.F., Tkach S.A., Toimbaeva B.M., Seydinova G.A. Research of cement stone porosity modified by complex organic mineral modifiers // Fundamental research., 8-3, 590-595(2014).

14. Xu S.Q. The Comprehensive Utilization of Fly Ash. Applied Mechanics and Materials, 459, 82-86(2013) DOI:10.4028/www.scientific.net/AMM.459.82

15. Feng N., Peng G. High Performance Concrete with High Volume Fly Ash. Key Engineering Materials. 302-303, 470-478(2006). DOI:10.4028/www.scientific.net/KEM.302-303.470

16. Nai-Qian Feng, Gai-Fei PengA Development of the Research on High Performance Concrete Incorporated with High Volume Fly Ash. Key Engineering Materials. 302-302, 26-34(2006). DOI:10.4028/www.scientific.net/KEM.302-303.26156.

17. Reiterman Comparative Investigations of some Properties Related to Durability of Cement Concretes Containing Different Fly Ashes. Advanced Materials Research. 1054, 154-161(2014). DOI: 10.4028/www.scientific.net/AMR.1054.154

18. Kalashnikov V.I. Promyshlennost' nerudnyh stroitel'nyh materialov i budushchee betonov, Construction Materials. 2008. N. 3. Pp. 20-23.

19. Suzdal'cev O.V. Novye vysokeffektivnye betony, New university. Technical sciences, 7-8(29-30), 44- 47(2014).

20. Melihov I.V. Physicochemical Evolution of Solid, (Binomial. Knowledge laboratory, Moscow, 2009).