APPLICATION OF SLAG FILLERS IN THE ASPHALT CONCRETE COMPOSITION FOR INCREASING THE ROAD COATING’S DURABILITY

Introduction. The paper presents the research results of the metallurgical slag characteristics on the example of metallurgical waste of Novokuznetsk in the Kemerovo region. Moreover, the paper demonstrates the ways of metallurgical waste’s usage in the asphalt mixes’ composition for the road construction and shows design methods and features of the asphalt concrete on slag aggregates. The aim of the research is to substantiate the possibility of using steelmaking slags of the Novokuznetsk Metallurgical Plant as a mineral skeleton of asphalt concrete pavement to increase its operational reliability. Basing on the research of the physicomechanical properties of asphalt binder and testing of prototypes, the authors confirm the increased shear strength of asphalt concrete on slag aggregates and resistance to cracking in comparison with traditional mixtures. The issue under consideration is relevant by finding more efficient building materials in the context of the development of resource-saving technologies and increasing environmental requirements in the Russian regions.

Materials and methods. The authors carried out investigations of metallurgical slag by determining their physical and mechanical characteristics in accordance with the existing regulatory and technical base using modern measuring instruments and testing equipment.

Results. As a result, the authors selected compositions of slag asphalt concrete mixtures that satisfied the requirements of the existing regulatory and technical base across the entire spectrum of physical and mechanical parameters and operational characteristics.

Discussion and conclusion. The use of metallurgical slags of the Novokuznetsk Metallurgical Plant as a filler for asphalt concrete increases its operational characteristics, especially those, which are important in conditions of intense traffic load and sharply continental climate and those, which reduce the cost of such mixtures compared to traditional ones due to the use of industrial waste in them. Therefore, the metallurgical slag seriously competes with natural building materials in the preparation and laying of asphalt mixtures for streets and roads of various categories.

The authors have read and approved the final manuscript. Financial transparency: the authors have no financial interest in the presented materials or methods. There is no conflict of interest.

1. Spiridonov E.S. Problemy i puti razvitiya dorozhnogo stroitel’stva [Problems and ways of development of road construction]/ E.S. Spiridonov, D.E. Volkov // Transp. RF. 2010; 4: 62–65 (in Russian).

2. Bobkov A.L., Bobkov L.V. Innovatsii i povysheniye konkurentosposobnosti promyshlennosti Rossii [Innovations and increasing the competitiveness of Russian industr].Monografiya. Moscow, 2010; 150 p. (in Russian).

3. Mar’yev V.A., Rudenskiy A.V. Ispol’zovaniye vtorichnykh material’nykh resursov pri stroitel’stve i remonte avtomobil’nykh dorog – vazhnyy rezerv resursosberezheniya [The use of secondary material resources in the construction and repair of roads is an important reserve of resource conservation]. Dorogi i mosty. 2017; 37/1: 11–24 (in Russian).

4. Grinevich N.A. Metallurgicheskiye shlaki v dorozhnom stroitel’stve. Upravleniye innovatsiyami v dorozhnom khozyaystve [Metallurgical slag in road construction. Management of innovations in the road sector]. Sbornik nauchnykh trudov GIPRODORNII. 2014; 5(64):124–129 (in Russian).

5. Yushkov V. S., Pugin K. G. Razrabotka asfal’tobetonnoy smesi s ispol’zovaniyem otkhodov proizvodstva [Development of asphalt-concrete mix using production wastes]. Vestnik MGSU. 2014; 6: 99–104 (in Russian).

6. Pugin K.G. Ispol’zovaniye otkhodov metallurgii v asfal’tobetonakh [The use of metallurgy waste in asphalt concrete]. Stroitel’nyye materialy. 2011; 10 : 26–27 (in Russian).

7. Rasstegayeva G.A. Asfal’tobeton s primeneniyem otkhodov shlakovatnogo i liteynogo proizvodstva: [Asphalt concrete using slag and foundry waste: Building materials]. Stroitel’nyye materialy. 1993; 1: 11–12.

8. Samodurov S.I. O dolgovechnosti shlakovykh asfal’tobetonnykh pokrytiy [On the durability of slag asphalt pavements]. Mezhvuzovskij sbornik. Rostov-na-Donu,1980: 21–31 (in Russian).

9. Artemova A.V. Aktivirovannyy mineral’nyy poroshok na osnove metallurgicheskikh shlakov i yego rol’ v asfal’tobetone [Activated mineral powder based on metallurgical slag and its role in asphalt concrete]. Lesa Rossii i khozyaystvo v nikh. 2009; 85–91 (in Russian).

10. Vasilovskaya G.V., Nazirov D.R. Primeneniye otkhodov promyshlennosti v kachestve mineral’nogo poroshka v asfal’tobetone [Use of industrial waste as a mineral powder in asphalt concrete]. Vestnik IrGTU. 2013; 10 (81): 153–157 (in Russian).

11. Kopylov V.Ye., Burenina O.N. Mineral’noye syr’ye Respubliki Sakha (Yakutiya) dlya proizvodstva asfal’tobetonov [Mineral raw materials of the Republic of Sakha (Yakutia) for the production of asphalt concrete]. Naukovedeniye. 2016; Tom 8, No. 1. doi.org/ 10.15862/47TVN116 (in Russian).

12. Podol’skiy V.P., Rasstegayeva G.A., Rasstegayeva L.N. Armirovannyy asfal’tobeton s primeneniyem aktivnykh mineral’nykh otkhodov i pobochnykh produktov promyshlennosti [Reinforced asphalt concrete with the use of active mineral waste and industrial by-products]. Stroitel’nyye materialy, oborudovaniye, tekhnologii XXI veka. 2000; 9(18): 10 (in Russian).

13. Gorelysheva, L. A. Teoreticheskiye aspekty vzaimodeystviya razlichnykh poroshkoobraznykh materialov s organicheskimi vyazhushchimi [Тheoretical aspects of the interaction of various powder materials with organic binders]. Puti ekonomii material’nykh i energeticheskikh resursov pri remonte i rekonstruktsii avtomobil’nykh dorog. Moscow, 1989; 1: 29–35 (in Russian).

14. Barkhatov V.I., Dobrovol’skiy I.P., Kapkayev Yu.Sh. Otkhody proizvodstv i potrebleniya – rezerv stroitel’nykh materialov [Production and consumption waste – building materials reserve]: monografiya. Chelyabinsk: Izd-vo Chelyab. gos. un-ta, 2017; 477 (in Russian).

15. Bazhenov Yu. M., Shubenkin P.F., Dvorkin L. I. Primeneniye promyshlennykh otkhodov v proizvodstve stroitel’nykh materialov [Application of industrial waste in the production of building materials]. Moscow, Stroyizdat, 1986 (in Russian).

16. Larionova N.A., Nikolayeva S.K., Ryabova A.A. Otsenka vozmozhnosti ispol’zovaniya promyshlennykh otkhodov dlya polucheniya stroitel’nykh materialov dlya dorozhnogo stroitel’stva [Assessment of the possibility of using industrial waste to obtain building materials for road construction]. Innovatsionnyy potentsial yestestvennykh nauk. 2006; 157–162 (in Russian).

17. Kashevskaya Ye.V., Kostenko K.K., Kostenko A.K. Ispol’zovaniye otkhodov proizvodstva i vtorichnykh resursov v dorozhnom stroitel’stve [Use of industrial waste and secondary resources in road construction]. Nauka i tekhnika v dorozhnoy otrasli. 2004; 2 (29): 30– 33 (in Russian).

18. Khasanova V.K., Shil’nikova N.V. Problema utilizatsii promyshlennykh otkhodov v Rossii na sovremennom etape yeyo razvitiya [Рroblem of industrial waste disposal in Russia at the present stage of its development]. Vestnik Kazanskogo tekhnologicheskogo universiteta. 2012.; 15 (2): 76–78 (in Russian).

19. Sentsov I.V., Nichiporovich Ye.D., Spitskaya A.SH., Tsygvintsev I.V., Matirnaya P.I., Shavva A.A., Novik A.N., Promyshlennyye otkhody i TBO v dorozhnom stroitel’stve [Industrial waste and MSW in road construction].Alfabuild. 2018; 3 (5): 52-65 (in Russian).

20. Bessonov A.S. Tekhnologii resursosberezheniya v stroitel’stve i ikh primeneniye na sovremennom etape [Resource-saving technologies in construction and their application at the modern stage]. Sovremennyye nauchnyye issledovaniya i innovatsii. 2017; 2: URL: http://web.snauka.ru/issues/2017/02/78083 (in Russian).

21. Yarmolinskaya N.I. Dorozhnyy asfal’tobeton s primeneniyem mineral’nykh poroshkov iz tekhnogennykh otkhodov promyshlennosti [Road asphalt using mineral powders from industrial waste]. Khabarovsk: Izd-vo khabarov. gos. tekh. un-ta. 2002; 103 p. (in Russian).

22. Goncharova M. A. Ispol’zovaniye konverternykh shlakov v proizvodstve materialov dlya dorozhnogo stroitel’stva [Use of converter slags in the production of materials for road construction]. Stroit. materialy. 2009; 7: 26–27 (in Russian).

23. Pimenov A.T., Il’ina L.V., Smirnova O.Ye. Kontseptual’nyye podkhody k primeneniyu metallurgicheskikh shlakov pri proizvodstve stroitel’nykh materialov razlichnogo naznacheniya [Conceptual approaches to the use of metallurgical slag in the production of building materials for various purposes]. Resursoenergoefektivnyye tekhnologii v stroitel’nom komplekse regiona-2018; 1 (9): 179–182 (in Russian).

24. Pimenov A.T., Pribylov V.S. Vliyaniye staleplavil’nykh shlakov v sostave asfal’tobetona dorozhnykh pokrytiy na ikh svoystva v protsesse ekspluatatsii [Influence of steelmaking slag in the composition of asphalt concrete pavement on their properties during operation]. Resursosberezheniye i ekologiya stroitel’nykh materialov, izdeliy i konstruktsiy. 2018; 306–309 (in Russian).

25. Pimenov A.T., Pribylov V.S. Modifikatsiya sostavov metallurgicheskikh shlakov dlya povysheniya ikh gidravlicheskoy aktivnosti [Modification of the composition of metallurgical slag to increase their hydraulic activity]. Sovremennyye materialy, tekhnika i tekhnologii. 2018; 6(21): 106–113 (in Russian).