2023, Vol. 10, No. 4. - go to content...

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DOI: 10.15862/18SATS423 (https://doi.org/10.15862/18SATS423)

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Zolotareva S.V., Ayubov N.A., Fediuk R.S., Klyuev S.V., Liseitsev Yu.L. High workability cement materials. Russian Journal of Transport Engineering. 2023; 10(4). Available at: https://t-s.today/PDF/18SATS423.pdf (in Russian). DOI: 10.15862/18SATS423

High workability cement materials

¹Svetlana V. Zolotareva, ²Narman A. Ayubov,
³Roman S. Fediuk, ¹Sergey V. Klyuev, ⁴Yury L. Liseitsev

¹Belgorod State Technological University named after V.G. Shukhov, Belgorod, Russia
²Comprehensive Research Institute named after
H.I. Ibragimov of the Russian Academy of Sciences, Grozny, Russia
³Far Eastern Federal University, Vladivostok, Russia
⁴Sholom-Aleichem Priamursky State University, Birobidzhan, Russia

Corresponding author: Roman S. Fediuk, e-mail: roman44@ya.ru

 Abstract. Analysing the main indicators of the territorial road network development level of our country, we come to the conclusion that it requires a large-scale re-equipment. A wide range of mixtures with high penetrating ability from composite binders ground to Ssw = 500 m²/kg has been developed. The viscosity characteristic of the developed materials testifies to their high penetrating ability, because the time of flow of the investigated materials through the Marsh viscometer is 33–39 seconds at a water-binding ratio of 0,62 and water consumption of 140 l/m³. The mixtures are characterised by P4 grade of workability (cone slump more than 30 cm). It is established that the strength enhancement effect of mixtures’ compressive strength increases at application of composite binder. In particular, at the age of 2 days the mixtures’ compressive strength on low water consumption binder increased by 56 % in comparison with the additive-free composition. The developed mixtures meet the requirements of GOST 59538-2021: specific surface of cement 450 m²/kg, compressive strength classes — B5–B10, stable and conditionally stable, water resistance grades — W6–W16, frost resistance grade — F2100. Studies of stress-related characteristics of mixtures (elastic modulus 8,92 GPa, prism strength 10,2 MPa), give grounds to conclude that on the basis of crushed stone from metamorphic slate stone, it is possible to obtain concrete for roadbed, corresponding to the normative documentation. The developed compositions make it possible to produce concrete of class B5–B10 when strengthening crushed stone bases and they can be used in the construction of bases of II category of motorways.

Keywords: cement; material; penetrability; mobility; road pavement; concrete; crushed stone

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