USE OF SECONDARY MATERIAL RESOURCES WHEN ROAD CONSTRUCTING AND REPAIRING – AN IMPORTANT RESOURCE RESERVE
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Engineer V.A. Maryev,
Doctor of Engineering, Professor
A.V. Rudensky
(SUE «NIIMosstroy»)
Contact information: ruda0704@yandex.ru - Abstract: The issues of secondary material resources use when road constructing and repairing are reviewed. Data concerning domestic and foreign experience in usage of arising and residential solid waste in road sector are given. The energy requirements for producing basic road construction materials and asphalt concrete pavements constructing are done. Legislative aspects of stimulation of effective usage of secondary material resources are regarded.
- Keywords: resource economy, road construction, secondary material resources, recycling technology, energy requirements for producing materials.
- UDC: 625.7
- File: Download
EXPERIENCE AND PERSPECTIVES OF USING INNOVATIVE TECHNOLOGIES IN INTERNATIONAL HIGHWAYS CONSTRUCTION IN KAZAKHSTAN
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Doctor of Engineering, Professor
B.A. Asmatulaev,
Ph. D. (Tech.) R.B. Asmatulaev,
Engineer A.K. Oshanov,
Engineer R.R. Ezmahunov,
Engineer R.A. Mazgutov
(InstitutKazNIiPI «Dortrans»),
Doctor of Engineering, Professor
V.N. Shestakov,
Doctor of Engineering, Professor A.V. Smirnov
(SIBADI)
Contact information: boris-aisa@mail.ru - Abstract: The main causes of reducing lifetime of road pavements are revealed. The work of road structures under current transport and climate loads is analyzed. The results of experience of using innovative technologies and materials in road construction in Kazakhstan according to the research results carried out in KazNIiPI «Dortrans» NIOKR Institute are given. To increase road lifetime the using of high-technology rolled cinder concretes, sludge concretes and ash concretes, performance of which is held out for high-strength cement concretes, is recommended.
- Keywords: causes of road pavement deformation, loads, monolithic layers, hydraulically active wastes, stabilizers, innovative materials.
- UDC: 625.7/.8(574)
- File: Download
ROAD ASSET MANAGEMENT SYSTEM (ON THE EXAMPLE OF ROADS OF THE REPUBLIC OF TAJIKISTAN)
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Doctor of Engineering, Professor
O.A. Krasikov
(FAI «ROSDORNII»)
Ph. D. (Tech.), Professor I.N. Kosenko
(KazADI, Almaty)
Contact information: krasikov@rosdornii.ru - Abstract: The article presents the review of existing road asset management systems with the conclusions about complexities of their practical implementation. A road asset management system elaborated for developing countries, particularly for Republic of Tajikistan, is considered. The system consists of three moduli: electronic roadmap, automated road data bank, repair planning subsystem. The created system with developed model of operational chain allows to decide the issues of road repair works planning on the road network of assign region with limited resources and to substantiate strategy of repair for the future up to 3 year in various financing scenarios. The system is realized on an example of roads of Sogdian region of Tajikistan with plotting diagrams of road condition change in time depending on repair work volumes in given financing options. Extended suggestions for elaboration of roadmap for system implementation are done.
- Keywords: road assets, management systems, developing countries, automated data bank, electronic road map, repair planning subsystem, operational chain model, strategy of repair for the future up to 3 year, financing options, organization of roadmap for system implementation.
- UDC: 625.7/.8(575.3)
- File: Download
RECOMMENDATIONS ON SELECTION OF ROAD ROLLERS AND MODES WORK ASSIGNMENT UNDER CONSTRUCTING CONDITIONS
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Ph. D. (Tech.), Associate Professor E.K. Chabutkin,
Ph. D. (Tech.), Associate Professor
N.E. Tarasova
(Yaroslavl State Technical University)
Contact information: chabutkin-ek@yandex.ru;
tarasovane@ystu.ru - Abstract: When compacting all road construction materials the process efficiency considerably depends on correct selection of road roller as by weight, design features and modes work assignment and, primarily, speed range, determining the required passes number in the same track. Some recommendations on road rollers selection are summarized. These recommendations are given in the form of nomograms and are obtained as a result of data compilation for a large number of commercially available rollers of different mass. While it is possible to select their work modes, in particular, rational rolling speeds.
- Keywords: road roller, compacting, rational speed, passes number, road construction materials.
- UDC: 625.731.2:624.138.22:625.7.084/085:625.8
- File: Download
REQUIREMENTS ON DEFORMATION CHARACTERISTICS OF SUBGRADE WORKING LAYER
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Doctor of Engineering, Professor A.M. Kuliznikov
(FAI «ROSDORNII»)
Contact information: kulihzn@mail.ru - Abstract: The article gives a justification for expediency of strength soil increasing of road subgrade. Recommended minimum moduli of elasticity for soils and maximum allowable elastic deformations on the surface of road subgrade in different road and climatic zones are given.
- Keywords: soil, subgrade, road, modulus of elasticity, road and climatic zone, elastic deformation.
- UDC: 625.731.2:624.131.54
- File: Download
ABOUT PERSPECTIVES OF NON-DESTRUCTIVE MEASUREMENT OF THE THICKNESS OF THE MONOLITHIC LAYERS IN ROAD PAVEMENT
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Ph. D. (Tech.) R.A. Eremin
(SBI «Roads»)
Contact information: r.eremin.01@gmail.com - Abstract: The article deals with devices and methods based on emission and recording of electromagnetic waves for measuring the thickness of asphalt concrete and cement concrete pavement layers. Following on from the analysis of the serial equipment features and the other researchers’ experiments the new device model based on GPR for determining the thickness of the asphalt concrete and cement concrete is proposed.
- Keywords: road pavement, measurement, layer thickness, asphalt concrete, cement concrete, common mid-point method, GPR.
- UDC: 625.76.004.58:550.835
- File: Download
SERVICE LIFE OF ASPHALT CONCRETE PAVEMENTS CONTAINING SHUNGITE MINERAL POWDER
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Ph. D. (Tech.), Professor N.S. Kovalev
(Voronezh State Agricultural University named after Emperor Peter the Great),
Assistant Professor E.N. Otarova
(«AIR FORCES MILITARY EDUCATIONAL AND SCIENTIFIC CENTER» «Zhukovsky – Gagarin Air Force Academy»)
Contact information: NSKovalev@mail.ru;
ekaterina.otarova@mail.ru - Abstract: Asphalt concrete containing shungite mineral powder is a relatively new material and its properties are poorly known. The researches on cyclic fatigue of this asphalt concrete under constant amplitude of deformations in laboratory conditions are carried out by the authors. Based on the received results the comparative service life of asphalt concrete pavements is estimated. It is found that predicted service life of asphalt concrete on shungite mineral powder is 2-3 years higher, than asphalt concrete on lime mineral powder.
- Keywords: asphalt concrete fatigue, asphalt concrete containing shungite mineral powder, forecasting of comparative service life of asphalt concrete pavements.
- UDC: 625.855.3
- File: Download
USING NEEDLE-PUNCHED AND YARN-SEWN BIOMATS FOR ROAD SUBGRADE SLOPES STRENGTHENING
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Ph. D. (Agricultural Sciences) S.I. Kostenko,
Ph. D. (Economic Sciences) M.E. Rabiner
(All-Russian Williams Fodder Research Institute),
Engineer S.Yu. Rozov
(FAI «ROSDORNII»)
Contact information: rozov@rosdornii.ru - Abstract: For protecting open soil against erosion processes biomates of different designs are increasingly used. Needle-punched and yarn-sewn biomats are the most commonly applied. The main difference between biomats and other similar constructions is to use only biodegradable materials. The comparison of biomats produced by various methods for different purposes (reclamation, sodding road shoulders and slopes, various types of landscaping etc.) is done.
- Keywords: biomat, reclamation, protection against erosion, road slopes.
- UDC: 625.76+625.77:625.731.2:502.521:606
- File: Download
ABOUT ROAD PAVEMENT WEAR BY SPIKED TIRES
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Ph. D. (Tech.) N.A. Lushnikov,
Ph. D. (Tech.) P.A. Lushnikov,
Ph. D. (Tech.) L.A. Gorelysheva
(FAI «ROSDORNII»),
Engineer A.V. Kornienko
(OOO «Alkorn»),
Engineer M.I. Novikov,
Engineer A.D. Khoryzhiy
(Moscow State University of Railway Engineering (MIIT))
Contact information: p.lushnikov@rosdornii.ru - Abstract: Certain issues concerning road pavement wear by spiked tires are regarded. Some suggestions for their resolving are given.
- Keywords: winter period, road pavement, wear, tires, spikes.
- UDC: 625.7.033.373
- File: Download
MATHEMATICAL MODELING OF HEAT AND MASS EXCHANGE IN ANTI-ICING STRUCTURES
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Engineer E.V. Shehtman
(PII «Moszheldorproekt»),
Doctor of Engineering N.P. Sigachev,
Ph. D. (Tech.) Ya.V. Klochkov
(Institute of Natural Resources, Ecology and Cryology, SB RAS),
Engineer Z.B. Dashinimaev
(«Zabajkalzheldorproekt»),
Engineer D.A. Grigoriev
(AO «Viljujavtodor»)
Contact information: (499) 262-51-10;
(3022) 20-61-97;
klochkov.zabirt@mail.ru - Abstract: The method of ice-free water pass when underground watercourse freezing near road structures is reviewed. The mathematical model of the thermal processes in drainage systems filled with granulated foam glass is presented. Thermotechnical calculations of drainage systems in different climatic conditions are carried out. The assessment of drainage system capability to pass water depending on winter design temperatures is given.
- Keywords: ice-free water pass, soil, foam glass, drainage, heat conductivity, thermotechnical calculations, mathematical modeling.
- UDC: 625.731.3:536.24
- File: Download
IMPACT OF THERMAL AND PHYSICAL CHARACTERISTICS OF DEICING AGENTS ON SNOW-AND-ICE BODIES BREAKUP ON ROADS
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Engineer A.V. Bobkov
(FAI «ROSDORNII»),
Doctor of Engineering A.V. Kochetkov
(Perm National Research Polytechnic University),
Ph. D. (Tech.) S.P. Arzhanukhina
(FAI «ROSDORNII»)
Contact information: nii_eko@mail.ru;
bobkov@rosdornii.ru;
soni.81@mail.ru - Abstract: When winter road maintenance carrying out special attention of road agencies is needed with regard to technological characteristics of deicing agents usage, taking into account not only melting capacity of applying materials, but also their thermal and physical characteristics. The article dwells upon mathematical model of heat transfer from point heat source based on the example of calcium chloride and sodium chloride work. Mathematical model validity is proved by field experiments.
- Keywords: roads, winter maintenance, deicing agents, thermal and physical characteristics, calcium chloride, sodium chloride.
- UDC: 625.768.5:624.143.36
- File: Download
RESEARCH OF THE TEMPERATURE REGIME DURING THE PERIOD OF WINTER SLIPPERINESS POSSIBLE FORMATION ON ROADS
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Doctor of Engineering, Professor T.V. Samodurova,
Ph. D. (Tech.) Y.V. Baklanov,
Postgraduate Student V.N. Peregudova
(Voronezh State Technical University)
Contact information: +7(473)271-52-02;
samodurova@vgasu.vrn.ru;
baklanovmail@mail.ru;
lapusia2@yandex.ru - Abstract: A generalized classification and an algorithm for modeling road pavement condition during winter are proposed. The modeling results of road pavement condition are presented. The temperature regime during the period of slipperiness formation and when working for its elimination is studied. Regularities of minimum temperature distribution for glassy ice and packed snow are revealed, and the probabilities for slipperiness formation in various temperature ranges are calculated.
- Keywords: road, winter slipperiness classification, pavement condition modeling, minimum temperature of slipperiness formation.
- UDC: 625.768.6
- File: Download
PERFORMANCE OF MATERIALS USED FOR REPAIR OF ROAD AND AIRFIELD PAVEMENTS
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Ph. D. (Tech) F.K. Gorbunov
(Institute of Solid State Chemistryand Mechanochemistry of the Siberian Branch of the RAS.),
Engineer Yu.N. Shevtsov
(LLC R&D Company «Novasib»)
Contact information: f1123723@yandex.ru;
shewtsow@yandex.ru - Abstract: The possibility of obtaining an universal road filler (UZD) for its application in repair works on the street-road network is revealed in this paper. The use of UZD in place of or in addition to asphalt concrete or cement concrete pavements allows to increase the service life of road section in several times, that leads to a significant reduction in the costs of road maintenance and repair. The obtained UZD with improved characteristics with respect to asphalt concrete (resistance to abrasion from 1,5 to 2,5 times, water saturation to 1%) is concerned.
- Keywords: road, road pavement, import substitution, composite material.
- UDC: 625.76
- File: Download
THEORETICAL SUBSTANTIATION OF THE METHOD FOR DETERMINING STRAIN-STRENGTH CHARACTERISTICS OF ASPHALT CONCRETE PAVEMENTS ON BRIDGE STRUCTURES
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Ph. D. (Tech.) V.P. Volokitin,
Ph. D. (Tech.) O.A. Volokitina,
Ph. D. (Tech.) A.V. Eremin
(Voronezh State Technical University)
Contact information: nova.vp@mail.ru;
dixi.o@mail.ru - Abstract: The method for determining strain-strength characteristics of asphalt concrete pavements on bridge structures is presented. Their consideration during construction and operation will increase the service life and improve traffic safety.
- Keywords: bridge structure, pavement, strain, strength, layer, asphalt concrete, spherical stamp.
- UDC: 625.745.12:625.855.3:539.37+539.4
- File: Download
EXPERT EVALUATION RESULTS OF ACCIDENT REASONS DUE TO POOR ROAD CONDITIONS
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Ph. D. (Tech.) A.L. Rybin
(FAI «ROSDORNII»)
Contact information: Rybin@rosdornii.ru - Abstract: The article dwells upon the results of expert polling on probability estimate of road traffic accident due to road design, construction and operation shortcomings.
- Keywords: road traffic accident, accident incidence rate reasons, road safety audit.
- UDC: 625.7:656.13
- File: Download
ABOUT REPRESENTATIVE SIZES OF LABORATORY SAMPLES OF GRANULATED ASPHALT CONCRETE
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Ph. D. (Tech.) G.S. Bakhrakh
(FAI «ROSDORNII»)
Contact information: bakhrakh35@mail.ru - Abstract: The phenomenon of wall effect arising during the formation of asphalt concrete and granulated asphalt concrete samples is considered. Significantly lower tensile strength for granulated asphalt concrete samples of 101 mm diameter compared with the ones of 71,4 mm diameter is revealed.
- Keywords: asphalt concrete, granulated asphalt concrete, tensile strength test.
- UDC: 625.855.3
- File: Download
INFLUENCE OF FREEZE-THAW CYCLING ON ASPHALT CONCRETE ELASTIC MODULUS
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Doctor of Engineering, Professor V.А. Zolotarev,
Postgraduate Student Ya.V. Iliyn
(Kharkiv National Automobile and Highway University)
Contact information: vvm@khadi.kharkov.ua;
ya_ilin@mail.ru;
yail-in12011993@gmail.com - Abstract: This article concerns the influence of freeze-thaw cycling and subsequent rest on elastic modulus changes of asphalt concrete. It is shown the dependence of frost resistance coefficient from test time-temperature conditions. It is revealed an effect of modulus partial return to the initial value. It is suggested the use of linear viscoelastic straining as a nondestructive method for determining frost resistance of asphalt concrete.
- Keywords: asphalt concrete, frost resistance, linear viscoelasticity, elastic modulus, heat recovery.
- UDC: 625.855.3:539.3:620.192.42
- File: Download
ABOUT IMPROVEMENT OF NORMATIVE REQUIREMENTS FOR ASPHALT CONCRETE
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Ph. D. (Tech.) G.N. Kirukhin
(LLC «Road Pavement Institution»)
Contact information: 8 (903) 233-51-33;
dorkir@mail.ru - Abstract: The preliminary national standard of the Russian Federation for asphalt concrete is analyzed. Certain recommendations for its improvement are given.
- Keywords: roads, road asphalt concrete mixtures, asphalt concrete, normalization, test methods.
- UDC: 625.855.3:691.16:006.3/.8
- File: Download
ABOUT REPRESENTATIVE SIZES OF LABORATORY SAMPLES OF ASPHALT GRANULOCRETE
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Candidate of Technical Sciences G.S. Bakhrakh
(FAA "ROSDORNII")
Comt. information: bakhrakh35@mail.ru - Abstract: The phenomenon of the wall effect that occurs during the molding of asphalt concrete and asphalt-granulocrete structures is considered. It is shown that the split strength of the "tens" samples is significantly lower compared to the "sevens" samples in the second case.
- Keywords: асфальтобетон, асфальтогранулобетон, испытание на раскол
- UDC: 625.855.3
- File: Download