IMPROVING THE DURABILITY OF CEMENT CONCRETE TO COVER ROADS

ABSTRACT

Stozhka V.V., Borkovsky P.P. Improving the durability of cement concrete to cover roads. Visnyk National Transport University. Series «Technical sciences». Scientific and Technical Collection. - Kyiv: National Transport University, 2020. - Issue 1 (46).

The article is devoted to the problem of improving the durability of cement concrete to cover the road through the use of additives.

The purpose of the work-improving the durability of cement concrete to cover roads through the use of hydrophobic additives.

Object of study-cement-concrete to cover roads.

Method of research: statistical analysis of scientific publications, technical and normative literature.

In Ukraine, there are almost no necessary types and brands of road cement, so the research and application of existing binders with effective additives is an urgent problem, the solution of which will expand the nomenclature of cement binders for road Construction, improve the durability and resistance of cement concrete covering roads, bridges and airfields, as well as to solve security issues. For this, it is possible to use chemical additives that kolatating pores, give the surface of concrete water-repellent properties, involve in the concrete mixture of air. Based on the modern representations of the physical- xiemia of superficial processes, it can be concluded that the introduction to the concrete mix of small-scale kremnijorganicnih substances together with the water of the closing, will allow to significantly improve the durability and strength against At the same time for the concrete of aggressive factors and load.

The influence of hydrophobic additives on physical, mechanical properties of cement concrete to cover roads is investigated. Based on the experimental results, it is determined that the application of 0.1­0.15% hydrophobic additives 136-157 M has a significant increase in the durability of cement concrete for the seal of roads.

KEYWORDS: CEMENT CONCRETE PAVEMENT, HYDROPHOBIC ADDITIVES, FROST RESISTANCE, WATER RESISTANCE, STRENGTH, DURABILITY.

REFERENCES

  1. Batrakov V.G. Modified concretes. - Moscow: Construction. - 1990. 400
  2. Higerovich M.I., Bayer V.V. Hydrophophob-plasticizing additives for cements, solutions and concrete. - Moscow: Construction. - 1979. - 126
  3. Chistyakov v., Shurgaya A. G., Doroshenko Yu. M., Chyzhenko N. P., Sertin v. P., Dulevych i. O. Influence of a complex additive on peculiarities of hardening and properties of cement concrete to cover the roads. Construction materials, products and sanitary engineering. - 2011. -No39 - 115 - 122.
  4. Doroshenko Yu. M., Doroshenko O. Yu., Borkovsky P. P., Chyzhenko N. P., Kutsokon O., Nakuszna I. Technological methods of regulating the properties of concrete//building materials, products and sanitary equipment. - 2014. -No51. - 50 - 54.
  5. Higerovich M.I., Bayer V.V. Hydrophobe-plasticizing additives for cements, solutions and concrete. - Moscow: Construction. - 1979. - 126
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  8. N., Yanbykh N.N. Recommendations for the use of silicon-organic additives in the construction of cementconcrete coatings of roads and airfields. - Soyuzdornia. Moscow Region. - 1970. 20 s.

AUTHOR

Stozhka V.V., Ph.D., National Transport University, Associate professor of the Department of Transport Construction and property management, e-mail: styozhka@ukr.net,tel. +30442803942, Ukraine, 01010, m. Kyiv, M. Omyanovicha-Pavlenko Str., 1, K. 139, orcid.org/0000-0002-5039-9852.

Borkowski Р.Р., National Transport University, Senior Lecturer in the Department of Road Construction materials and chemistry, e-mail: utgs@ukr.net, tel. ++30442859528, Ukraine, 01010, m. Kyiv, Boychuk St., 42, К.110.

REVIEWER

Kuzminets М. P., Doctor of Technical Sciences, Professor, head of the Department of Computer, engineering graphics and design, National Transport University, Kyiv, Ukraine.

Davydenko O. О., Ph.D, Associate Professor of Department of Bridges, tunnels and hydraulic structures, National Transport University, Kyiv, Ukraine.

Article language: Ukrainian

Open Access: http://publications.ntu.edu.ua/visnyk/46/324.pdf

Print date: 15.04.2020

Online publication date: 27.10.2020

 

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