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Composite railway sleepers

In 2013, TVEMA launched the production of composite sleepers according to specifications agreed with All-Russian Scientific Research Institute of Railway Transport (ОАО «VNIIZHT»).

Composite sleepers from TVEMA conform to operation and maintenance requirements for railway tracks and switches, railway tracks of industrial plants, metro and tram lines of all classes.

Sleepers made of polymer composite materials include a polymer matrix from recycled high-density polyethylene.

The main advantages of such sleepers include durability, simple installation and environmental friendliness.

Operational advantages

Tests performed by ОАО «VNIIZHT» demonstrated that composite sleepers manufactured by TVEMA are one and a half times stronger than new wooden sleepers and are almost three times lighter than reinforced concrete sleepers. They have excellent resistance to decay, mould, moisture and electro-insulating properties. Finally, they have low wear and long service life. Such sleepers can be used at the tracks with axial load up to 30 tones per axle, and their service life, subject to repair, reaches half a century (three times longer that the life of the wooden sleepers).

These composite sleepers preserve their physical and mechanical properties at ambient temperatures ranging from +50°С to -70°С when exposed to salt, gasoline and oil. Composite sleepers have high resistance to shock load and deflection. They help to reduce noise and vibration, thereby reducing destruction of the railway track, minimizing running maintenance and the number of repairs.

Installation features

The installation of the composite sleepers does not require any special training or equipment. They are laid with the help of conventional equipment for wooden sleepers. However composite sleepers do not require the installation of electro-insulating components and damping pads.

Ecological properties

Made of 100% recycled materials, a composite sleeper does not contain any toxic substances and does not cause corrosion. The sleeper does not contain wood or any wooden products. The use of any form of metal in it in is excluded.

The deterioration of the sleeper condition under the influence of ultraviolet light (direct sunlight) does not exceed 0.08 mm per year. The lost material is non-toxic and is not washed into ground water.

Composite sleepers may be produced from almost any recycled plastic – from used bottles to obsolete carpets. In other words, the waste with a long decomposition cycle instead of being the element of polluting the environment becomes the raw material for producing eco-friendly products which are recyclable and reusable. The last fact is particularly important compared, for instance, with wooden sleepers treated with creosote whose operation and recycling are environmentally hazardous.

Each kilometre of a track equipped with our sleepers helps to prevent the storage of tens of tons of plastic waste at the dump sites and environmental pollution. Choosing our sleepers you make an environmentally sound choice!

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Composite sleepers from TVEMA have a long life cycle. They are serviceable, recoverable, fully recyclable and ensure low operating costs. Fire certificate is available.

At present, ОАО «VNIIZHT» performs all types of tests of our composite sleepers with an operating run up to 500 million tons gross per kilometre of a track. More than 230 million tons have been tested without any signs of wear. The pilot lot of sleepers is also laid in the Moscow Metro and on the trial circle of ОАО «RZD» (Russian Railways) in the Moscow district Scherbinka.

Today, the production of the composite sleepers most actively develops in the USA with its largest in the world railway sleeper market. Russia is the second largest market of sleepers and the production of composite sleepers is potentially promising and attractive for investments.

Quick-assembly modular buildings

A quick-assembly modular building from TVEMA is a portable collapsible structure which provides a comfortable accommodation for the service personnel, quick assembly and delivery.

Due to these advantages, modular buildings can be delivered to site on a standard drop-side trailer or by one helicopter. One building kit can be assembled only by 3 people. The building is ready for use in 10-15 minutes and provides an insulated structure which can easily be customized to fit your needs.

Today, TVEMA manufactures the following versions of the modular buildings:

• Т-1М (С48) modular building with an area of 28 m2

• Т-2М (С96) modular building with an area of 30 m2

• Т-3М modular building with an area of 24 m2 (one-, two- and three-room version)

The quick-assembly modular buildings from TVEMA are ideally suited for construction of:

• shelters in emergency situations during natural disasters;

• field medical hospitals;

• field military barracks;

• temporary headquarters and operations centers of Ministry of Defence and Ministry of Emergency Situations;

• field churches;

• accommodation for the railway track maintenance personnel;

• temporary offices and premises for meetings at transport construction and natural resource development sites, etc.

After use, the modular building can be disassembled to ensure compact storage as it requires six time less space than in assembled condition. At customer's request, apart from the standard modules, the modular buildings of non-standard dimensions with customized modules (kitchen and sanitary, etc.) can be can be supplied.

The quick-assembly modular buildings offer the following advantages:

PORTABILITY

• Transportation by standard trucks or trailers;

• Lightweight aluminium frame.

SAFETY

• Total isolation from the outdoor environment during extreme weather conditions;

• Durable aluminium structure;

• Application of fire-resistant materials and paint coatings.

COMFORT

• Ready-to-use climate control system and built-in electrical wiring;

• Different variants of internal layout – separated or open-floor.

FINISH

• floor covered with rigid nickel-plated panels;

• walls covered with durable acrylic coating;

• roof covered with hard material.

EACH MODULE OF ANY VERSION COMES AS STANDARD WITH:

• Wall-mounted back-draught climate control unit (heat/cold), 3-9 kWh;

• Power supply panel with 4 sockets for 120/240 V;

• Kitchen outputs (for connection of water supply and disposal of sewage);

• Connectors for telephone and Internet access;

• Windows with aluminium frame and tempered glass;

• Insulated door with lock;

• Storage lockers located in one area (custom dimensions and configurations available).

• Tool box for the module assembly and setup.

The modular building kit of any version includes spares: additional amount of paint and fragments of coating materials (for the floor, walls, and the roof).

Energy efficient life-support systems

In 2010, TVEMA together with the TGSV Group launched the production of state-of-the-art climate control systems which comply with all existing international environmental and energy-efficiency standards using the best components from the USA and Canada.

These devices offer easy operation and reliability. On the basis of one system they provide heating, ventilation, cooling and filtering of the indoor air.

The coordinated control of these components of the integrated system makes it possible to achieve the required climatic parameters quickly and comfortably and to maintain their stability in the selected mode. Such pattern substantially saves energy resources and enables the user to adjust and optimize the costs as required.

Such interaction becomes especially vital in emergency situations. In the event of a fire or a gas leak, the intellectual system, without human intervention, localizes the emergency and minimizes its possible consequences.

The climate control systems from TVEMA-TGSV can be used both for taking immediate actions in emergency situations and for scheduled construction or refurbishment of the railway infrastructure facilities. The proposed equipment does not have any climatic limitations and can operate in any region, both in Russia and abroad.

To create a customized systems configuration, the customer is offered a wide range of devices and equipment.

As the components for the proposed air heating system, one can select such energy sources as radiators, water/steam air heaters with various types of heat supply, oil and electric air heaters. Or, for instance, gas heating plants, boilers and air heaters which are the most cost-efficient and efficient solutions compared to other heating systems.