COMPETITIVE ADVANTAGES OF INNOVATIVE MATERIALS WHILE THE CONSTRUCTION OF ROAD BASE STRENGTHENED LAYERS

Introduction. The introduction of innovative technologies and materials in road construction is difficult due to a number of constraints, the solution of which is an urgent task of the construction industry. The competitive advantages of innovative materials (polymer-mineral composition “Nicoflok”) relative to traditional ones are considered on the example of the soil strengthening technology. The results of the research show the inconsistency of the regulatory and legal framework of the road sector in terms of the innovative technologies (materials) application. Such results suggest quickly update, refining both the characteristics of materials and methods for assessing the usage effectiveness. Thus, it is possible to increase the reliability of decisions made on the repair and construction of roads, and, as a consequence, increase their service.
Materials and methods. The research was carried out in the course of construction (repair) work on the pilot road sections, as well as after a year of their operation. The authors used the regulatory documents and standard test methods for determining the physic, mechanical and deformation characteristics of soils and materials reinforced by the Nicoflok. Taking into account the obtained characteristics of the materials, the authors calculated an equal strength pavement structure using a licensed software product. According to the developed design options, the estimated cost of pavement construction was also calculated.
Results. The results of the research allow authors to conclude that the physic and mechanical characteristics of the reinforced material are improved. At the same time, the competitive ability for the additive usage also increases.
Discussion and conclusions. The paper shows the inconsistency of the regulatory and legal framework in the road sector in terms of the application of innovative technologies (materials). Moreover, the authors suggest the need to quickly update, clarifying both the characteristics of materials and methods for evaluating the usage effectiveness.

1. Dubina S.I., Sabko G.I., Bedrin E.A. Primenenie innovacionnyh tekhnologij pri stroitel’stve avtomobil’nyh dorog [Use of innovative technologies in the construction of roads]. Avtomobil’nye dorogi, 2008, no 11, pp. 117–120. (in Russian).

2. Maksimov А.Т., Sobko G.I. Primenenie polimernoy dobavki Nicoflok dlya ukrepleniya i stabilizatsii gruntov [Use of Polymer Additive Nicoflok for Soil Stabilization]. Мoscow, VTU Spetstroya Rossii, 2006. 89 p. (in Russian).

3. Bedrin E.A. Regulirovanie svojstv gruntov zemlyanogo polotna [Regulation of the properties of the subgrade soil]. Sbornik nauchnyh dokladov mezhdunarodnoj nauchnoprakticheskoj konferencii «Puti resheniya problem dorozhnoj otrasli SNG i perspektivy razvitiya mostostroeniya». Omsk. 2010. pp. 52–56. (in Russian).

4. Gusev N.К., Dubina S.I., Maksimov A.T. Ustoychivye smesi dlya dorozhnoy odezhdy [Strong Compositions for Road Pavement]. Avtomobilnye dorogi, 2012, no 5. pp. 80–81.

5. Maksimov A.T. Sravnitelnyy analiz effektivnosti primeneniya stabiliziruyushchikh sostavov i polimernykh dobavok v konstruktsiyakh dorozhnykh odezhd avtomobilnykh dorog [Comparative Analysis of Efficiency of Stabilizing Compositions and Polymer Additives in Road Pavement of Auto Roads]. Saint-Petersburg, LLC «Nikel», 2006. 24 p. (in Russian).

6. Gridchin A.M., Zolotyh S.N. Issledovanie vliyaniya PMK «Nicoflok» kak mekhanohimicheskogo aktivatora na svojstva cementa, primenyaemogo pri ukreplenii gruntov [Study of the effect of the Nicoflok MEC as a mechanochemical activator on the properties of cement used in soil reinforcement]. Vestnik BGTU im. V.G. Shuhova, 2018, no 5, pp. 6–10. (in Russian).

7. Li Z., Ma J., Yan H. Research and practice on grouting technology with new cement-based/polymer composite. Modeling and Computation in Engineering II. 2013. vol. 201. pp. 207–212.

8. Gusev N.К., Dubina S.I., Maksimov A.T. Optimal’nyy variant [The best option]. Dorogi sodruzhestva Nezavisimykh Gosudarstv, 2011, no 4, pp. 76–79. (in Russian).

9. Tekhnicheskoye zaklyucheniye po rezul’tatam ispytaniy polimermineral’noy kompozitsii «Nikoflok» i raschetov variantov dorozhnykh odezhd s tsel’yu primeneniya v dorozhnom stroitel’stve Respubliki Belarus’ [Technical opinion on the results of polymer mineral composition “Nikoflok” tests and calculations of pavements for the purpose of application in road construction of the Republic of Belarus]. Minsk, 2011. 34 p.

10. Gosudarstvennyye smetnyye normativy: Federal’nyye smetnyye tseny na materialy, izdeliya i konstruktsii, primenyayemyye v stroitel’stve. FSSTS-2001 (redaktsiya 2009 g.). CH.1. Materialy dlya obshchestvennykh rabot: utv. prikazom Minregiona Rossii ot 28.07.2009, no 308. (in Russian).

11. Gosudarstvennyye smetnyye normativy: Federal’nyye smetnyye tseny na materialy, izdeliya i konstruktsii, primenyayemyye v stroitel’stve. FSSTS-2001. CH.4. Betonnyye, zhelezobetonnyye i keramicheskiye izdeliya. Nerudnyye materialy. Tovarnyye betony i rastvory: utv. i vveden v deystviye s 28.05.2003 g. postanov. Gosstroya Rossii ot 20.05.2003 g. no 40.

12. Gosudarstvennyye smetnyye normativy: Federal’nyye smetnyye rastsenki na ekspluatatsiyu stroitel’nykh mashin i avtotransportnykh sredstv. FSEM-2001 (s izm. 27.02, 03.08, 15.12.2010 g.): utv. prikazom Minregiona Rossii ot 28.07.2009. no 307.

13. Prilozheniye 1 k pis’mu Minregiona Rossii ot 15.07.2011. no 18769-AP/08 «Indeksy izmeneniya smetnoy stoimosti stroitel’nomontazhnykh rabot po vidam stroitel’stva na III.2011».

14. Bedrin E.A., Bedrina E.A. Issledovaniye effektivnosti dobavki «Armador» pri stroitel’stve avtomobil’nykh dorog v Respublike Krym [Study of the effectiveness of the additive “Armador” in the construction of roads in the Republic of Crimea]. Arkhitekturno-stroitel’nyy i dorozhnotransportnyy kompleksy: problemy, perspektivy, innovatsii: materialy II mezhdunar. nauch.-prakt. konf. Omsk. 2017. pp. 180–186 (in Russian).

15. Bedrin E.A., Kiseleva E.A. Razvitiye tekhnologii ukrepleniya gruntov [Development of soil strengthening technology]. Razvitiye dorozhno-transportnogo kompleksa i stroitel’noy infrastruktury na osnove ratsional’nogo prirodopol’zovaniya: materialy VI Vseros. nauchprakt. konf studentov, aspirantov i molodykh uchenykh. Omsk. SibADI. 2011. pp. 13–18.

16. Antonov Y.B., Golubeva Y.A., Karamyshev I.M. Povysheniye deformativnykh tsementogruntov putem vvedeniya polimernykh dobavok [Increasing deformative cement soils by introducing polymer additives]. Povysheniye dolgovechnosti transportnykh sooruzheniy i bezopasnosti dorozhnogo dvizheniya:. Sb. nauch. tr. Kazan’. 2008. pp.133–135. (in Russian).