№ 4 on 2025:

Lupanov A.P., Nikitaev M.M., Brezhneva M.A.

PRODUCTION AND APPLICATION OF ASPHALT CONCRETE MIXTURES IN MOSCOW

Abstract
The article contains data on production capacities and the volume of asphalt concrete mixtures produced in Moscow It also provides data on the cost of asphalt concrete mixtures according to the new standards and technical specifications for Moscow. The article shows data on the cost of asphalt concrete mixtures according to new standards and technical specifications for Moscow. However, the use of pavements made of Stone Mastic Asphalt (SMA-20) provides the required operational properties and has a significant economic effect.

Keywords
asphalt concrete mixtures, asphalt concrete plants, cost of mixtures, performance properties of asphalt concrete, track depth, track formation

Vasiliev A.Yu., Urkhanova L.A.

RUBBER CONCRETE IS A MATERIAL FOR THE CONSTRUCTION OF DURABLE HIGHWAYS

Abstract
The characteristics of rubber concrete, a composite material based on road cement concrete with the addition of rubber crumb obtained from recycled car tires, are considered. The studies determined its physical and mechanical properties, such as strength, frost resistance, fatigue resistance, and deformation characteristics, and also conducted an analysis of performance indicators, which demonstrated an increase in the service life of rubber concrete road surfaces by 50-100% and a reduction in transport noise levels by 6 dB(A). The technological aspects of production and economic efficiency have also been studied, showing a reduction in the cost of the road surface life cycle by up to 60%. Special attention has been paid to the environmental benefits of this technology, related to the recycling of worn-out tires.

Keywords
rubber concrete, road construction, durability of coatings, rubber crumb, tire recycling, physical and mechanical properties, frost resistance, fatigue strength, economic efficiency, and waste recycling

Mironov N.S., Semenov G.I., Vasiliev Yu.E.

PROSPECTS FOR THE USE OF DISPERSED REINFORCED SULFUR CONCRETE IN TRANSPORT CONSTRUCTION

Abstract
The analysis of modern studies of physical and mechanical characteristics of seroconcrete modified by various additives, including dispersed reinforcement with fibers, is carried out. The production technologies, processes of structure formation and rheological properties of seroconcrete mixtures are considered. Special attention is paid to the advantages of seroconcrete, including its high chemical resistance, accelerated hardening and the possibility of using industrial waste. The results of tests of strength characteristics of dispersed-reinforced seroconcrete are presented, the prospects of its application in transport infrastructure are considered.

Keywords
seroconcrete, dispersed reinforcement, transport construction, modified bitumen, road construction, mechanical properties

Holikov N.M., Izmailova G.G., Imanbek A.T., Telkov P.K., Chernikov K.A., Iliev B.R.

MODIFYING POLYMER ADDITIVES FOR ASPHALT CONCRETE IN THE CONSTRUCTION OF A ROAD NETWORK IN LARGE CITIES OF KAZAKHSTAN

Abstract
The article discusses the development of polymer modifiers for asphalt concrete used in paving difficult sections of the road network of large cities of the Republic of Kazakhstan. The main attention is paid to the use of a hybrid composition of plastomers and a dispersion of thermoelastomers to increase the durability and operational reliability of road surfaces. The results of physico-mechanical and rheological studies have shown that the modification of bitumen with a hybrid composition improves its elastic-viscous properties, increasing shear stability and reducing residual creep at high temperatures. This allows you to expand the temperature range of the asphalt concrete coating and increase its durability.

Keywords
asphalt concrete, bitumen, hybrid composition, operability reliability, polymer modifiers, plastomers, rheological studies, thermoelastomers

Valiev Sh.N., Sukhov I.S., Vasiliev Yu.E., Сosmin V.V.

NEW GOST FOR HEAVY-DUTY FIBREGLASS: IMPROVING THE RELIABILITY AND DURABILITY OF BRIDGES

Abstract
GOST R 72000-2025 ‘Public roads. Heavy-duty fibre-reinforced concrete with steel fibre for bridge structures. Technical specifications’ was developed and put into effect on 2025.05.01. It provides requirements for the selection of composition, manufacturing methods, and equipment for the production of extra-strong steel fiber-reinforced concrete, as well as key physical and mechanical characteristics and properties of the material, its advantages, and prospects for its use in the construction of bridge structures.

Keywords
high-strength steel-fibre concrete, bridge construction, GOST 72000, strength characteristics, physical and mechanical characteristics

Lysenkov A.V., Stakhovsky V.M.

EXPERIENCE IN THE DESIGN, COMMISSIONING, AND MAINTENANCE OF MODERN BRIDGE MONITORING SYSTEMS

Abstract
The article summarizes the long-term experience of implementing automated systems for monitoring the technical condition of bridge structures. The place of monitoring within the framework of a systematic approach in bridge research has been determined. The main features of monitoring systems at each stage of their life cycle are given. The main problems and promising areas of development in this subject area are outlined.

Keywords
engineering structure monitoring system, monitoring system design, structure technical condition, bridge structure safety, maintenance

Kapustin M.M., Khazanov M.L.

MEASUREMENT OF DEFLECTIONS OF FERRY RAMP BEAMS DURING STATIC TESTS

Abstract
Methods of measuring deflections of bridge structures during static tests are considered. Difficulties arising when measuring deflections of a span structure with a compliant support are described, and solutions are proposed to ensure the reliability of the results.

Keywords
deflection measurement, compliant supports, variable-section beams, laser rangefinders

Kolos A.F., Chernyaeva V.A., Bystrov N.V., Shekhtman E.I., Dzegan G.D.

THE INFLUENCE OF THE ASPHALT CONCRETE SUB-BALLAST LAYER ON THE TEMPERATURE AND MOISTURE CONDITIONS OF THE RAILWAY TRACK

Abstract
The article examines the influence of an asphalt concrete sub-ballast layer on the temperature and moisture conditions of railway track subgrade soils. Primary data obtained from soil moisture and temperature sensors on an experimental section were analyzedя

Keywords
asphalt layer, embankment, moisture, railway track, sub-ballast layer, temperature and moisture conditions

Novakovich V.I., Karpachevsky G.V., Zalavsky N.I., Zubkov E.N

THE MAIN STAGES OF THE IMPLEMENTATION OF THE DOMESTIC CONTINUOUSLY WELDED RAIL TRACK

Abstract
The evolution of technologies is considered — from the first welded rail strings to the development of ultra-long continuously welded rails, comparable in length to track sections. Five conditional stages of implementation are described, each marked by overcoming specific technical and regulatory challenges: ensuring track stability at high temperatures, preventing rail creep, and relieving excessive thermal stresses. Particular attention is paid to the critique of outdated static calculation methods based on bench testing, and the necessity of accounting for dynamic train loads in modern standards is substantiated. Conceptual differences in calculation and track maintenance approaches are highlighted, and promising directions for improving the efficiency of continuously welded rail track are proposed, based on the introduction of new superstructure elements: R58 rails, lightweight reinforced concrete sleepers, and bolt-free fasteners.

Keywords
continuously welded rail track, rail creep, track stability, temperature stresses

Testeshev A.A., Genze D.A., Kuyukov S.A.

THE IMPACT OF FREQUENT TRANSPORT CHANGES ON THE CAPACITY OF HIGHWAYS IN AREAS OF REGULATED INTERSECTIONS

Abstract
Correlations of frequent vehicle rebuilds and traffic flow characteristics are considered. In the development of the current methodology for assessing throughput, partial coefficients have been proposed that take into account rearrangements at approaches to the intersections of main streets, differentiated by traffic intensity.

Keywords
frequent rearrangements, throughput, throughput reduction factor

Chirva M.A.

ON THE PROBLEMS OF PRICING AND ESTIMATED RATIONING IN DETERMINING THE COST OF CONSTRUCTION OF TRANSPORT FACILITIES

Abstract
The existing procedure for forming the estimated cost of construction has, as practice shows, a number of serious drawbacks that cause significant human and time costs in determining the estimated cost itself, complicate the process of organizing the construction of transport facilities due to inaccurate cost determination. In this article, the author considers the shortcomings of the existing procedure for the formation of the estimated cost of construction and related issues of construction organization. Proposals have been formulated to solve the existing problems of pricing and estimated rationing in determining the cost of construction of transport facilities.

Keywords
artificial structures, capital construction project, construction organization, contractor, cost determination, customer, estimated construction cost, estimated rationing, project documentation

DIGITALIZATION OF RAILWAY DESIGN AND CONSTRUCTION: THE SLOVENIAN EXPERIENCE (foreign experience)

AN ENCYCLOPEDIC PUBLICATION THAT OPENS UP NEW HORIZONS FOR ROAD CONSTRUCTION (bookshelf)