Crushed stone and ballast

About the Company

Since 2010, Prombudkoliya has been engaged in the supply and installation of crushed stone and ballast for the construction, repair, and maintenance of railway tracks. We ensure the use of certified materials that comply with Ukrzaliznytsia technical requirements and DBN V.2.3-19, and we also perform turnkey works on leveling and compaction of the ballast layer.

The quality of the ballast layer directly affects track stability, train ride smoothness, and the durability of railway track superstructure elements. Therefore, we pay special attention to the quality of crushed stone, installation technology, and density control.

Purpose of Crushed Stone and Ballast

Crushed stone and ballast serve as the support for sleepers and the rail–sleeper grid, ensuring uniform load distribution, drainage, and track stability. A reliable ballast layer prevents settlement, deformation, and reduces dynamic loads on sleepers and rails.

Main Areas of Work

Supply of Crushed Stone and Ballast

Prombudkoliya supplies granite, limestone, and gravel crushed stone of various fractions (25–60 mm, 40–70 mm) with certificates of conformity and laboratory reports. All materials are tested for strength, wear resistance, and frost resistance.

Subgrade Preparation and Leveling

Before installation, clearing and leveling of the subgrade are carried out, including construction of the sub-ballast layer and formation of the longitudinal and transverse track profile in accordance with design gradients and elevations.

Ballast Installation

Mechanized or manual ballast placement is performed with uniform distribution across the full track width. The layer thickness is formed in accordance with design documentation and Ukrzaliznytsia standards.

Compaction and Stabilization of the Layer

Compaction is carried out using vibratory rollers or ballast tamping machines, ensuring dense interlocking of aggregates and minimizing voids. After compaction, density and profile geometry control is performed.

Cleaning and Restoration of Contaminated Ballast

During maintenance and repair works, partial or full cleaning of ballast from contamination, dust, clay, and organic inclusions is carried out. Specialized equipment and screening units are used.

Formation of Drainage and Water Disposal Systems

Trays, ditches, and drainage channels are constructed to remove water from the ballast zone. This prevents overmoistening and washout of crushed stone, maintaining track stability under all weather conditions.

Work Execution Stages

1. Analysis of the subgrade condition and project preparation
2. Supply and delivery of crushed stone to the site
3. Ballast leveling and layer formation
4. Compaction and alignment of the track profile
5. Quality control and preparation of as-built documentation

Our Services

• Supply of crushed stone and ballast for railway tracks
• Installation and compaction of the ballast layer
• Cleaning, replacement, and restoration of ballast
• Construction of drainage and water disposal systems
• Density and geometry control of the ballast layer
• As-built documentation and regulatory reporting

Our Capabilities

• Own equipment for delivery and installation of crushed stone
• Work on facilities of any length and category
• Certified suppliers and laboratory quality control
• Use of geosynthetic materials for subgrade reinforcement
• Turnkey execution of works
• Quality warranty for materials and completed works

Company Advantages

• 15 years of experience in railway construction and maintenance
• Certified crushed stone materials and laboratory control
• Modern equipment for ballast placement and compaction
• Full compliance with Ukrzaliznytsia requirements
• Cost optimization and strict adherence to work schedules
• Comprehensive support — from supply to project handover

Examples of Completed Works

Ballast Installation on an Industrial Siding (Kyiv Region, 2023)

1,800 tons of granite crushed stone (25–60 mm fraction) were supplied. Distribution, compaction, and track profile formation were completed. Density control was performed and the facility was commissioned.

Ballast Cleaning and Restoration (Dnipro, 2022)

Mechanized cleaning of the ballast layer was carried out on a 3.2 km section. Up to 40% of contaminated material was removed, followed by replenishment with new crushed stone and compaction using vibratory rollers.

Drainage System Construction and Ballast Installation (Odesa Region, 2021)

Reconstruction of the drainage system and complete replacement of the ballast layer were carried out on 1.5 km of track. The works passed Ukrzaliznytsia inspection without comments.

Frequently Asked Questions

What type of crushed stone is used for railway tracks?

The most commonly used material is granite crushed stone with fractions of 25–60 mm or 40–70 mm, with compressive strength not less than 1000 kg/cm² and frost resistance of at least F300.

How often does ballast need replacement?

Under normal operating conditions, replacement is carried out every 15–20 years. On industrial tracks, it may be required more frequently depending on traffic intensity and contamination level.

Is partial ballast cleaning possible without dismantling the track?

Yes, using specialized equipment, localized screening and restoration of the ballast layer can be performed without dismantling the rail–sleeper grid.

What documents are provided upon completion of the works?

As-built diagrams, certificates of completed works, laboratory test reports, and quality certificates for crushed stone and ballast.

Submit a Request

Need supply and installation of crushed stone or ballast for a railway track? Submit a request, and Prombudkoliya specialists will ensure delivery, installation, and quality control of materials with full documentation in accordance with Ukrzaliznytsia standards.