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  Digital Catalogue for Technology and Products Development

   Technology and Product Development

    Basic Information

Technology developed: COMPOSITE RAILWAY SLEEPER (TP19769768657)
Category: Product(Hardware/Material/Software)
Details of Inventor(s):
Inventor Institution/Organization/Company Department Designation
Dr. Naresh Bhatnagar Indian Institute of Technology, Delhi Mechanical Engineering Professor
Technical Application Area: Transportation
If 'Other', please specify:
Please give more details of new technical application area:
Indian Institute of Technology (IIT) Delhi
Affiliated Ministry: Institution Funding (Self Supported)
Type of technology development: Indigenous
Does the technology help in replacing any import items currently
procured from outside India?
Does the technology have export potential? 1
Category of Technology developed: Immediate Deployment
Stage of Development: Prototype Level
Please describe in detail including the TRL Level:


Applications: The railway sleepers are one of the critical components of the railway operations. The materials traditionally utilized for sleepers are timber, concrete or steel. In the existing arts, the rail fastening systems that are used, damages the railway sleepers as the use of spikes and tools deteriorates the vibration absorption and damping abilities, further reducing the application for high speed operations and during the movement on the rails, develop tension zones at the base, under the rail seats, of the railway sleepers. To overcome these problems a High strength and light weight composite railway sleeper is developed by IIT Delhi to replace the existing timber steel, concrete or composite sleepers. A composite railway sleeper formed from recycled plastic and rubber, more particularly from reinforced fibres, recycled plastic and EoLT Trubber. The objective of the present invention is to devise a composite railway sleeper which, while limiting the pulverisation of the ballast, allows easy and rapid application in work, by means of adopting elastic type fastening system with direct laying type pre-formed at factory which would allow connection of rails to the sleeper without needing unwanted fitting operations and high speed track operations. Key Features: 1. It can be used in various railway systems such as high-speed lines, high capacity lines, conventional lines, metropolitan lines, tram lines and narrow gauge lines, especially on the bridges, culverts and tunnels 2. It provides anti-noise and anti-vibration features 3. Lower vibrations and better damping of structure 4. Excellent durability 5. Efficient in performing high speed operations 6. Sleepers are able to resist biological and chemical attacks.
Advantages: 1. Low maintenance cost 2. It also provides greater safety 3. It poses no/minimal environmental restrictions. 4. It is able to absorb and release the vibrational efforts that the screw receives. 5. It gives strength to lateral displacement in the applications on bridges, culverts, and reduction in pulverisation of the ballast in the ground track lines. 6. It provides higher tear strength and stability.

    Technology Inputs:

Imported Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
Indigenous Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
Imported Raw Materials:
Raw Materials Year ITC-HS Code
Indigenous Raw Materials:
Raw Materials Year ITC-HS Code
Existing R&D Facilities used:
Facilities Year ITC-HS Code

    R&D Investment:

R&D investment (Rs. in Lakhs):                    
Indian Source (Rs.) Foreign Source (Rs.) Year
0 0 NA

   Patents & Publications:

Filed Patents (No.) Granted Patents (No.) Year
1 0 NA
Submitted (No.) Published (No.) Year
0 0 NA

    Commercialization Potential:

Who are the Potential Licensees?
What commercially available products address
the same problem?
Company Product Problem Addressed
Would you like to develop this invention further with
corporate research support?
Would you be interested in participating in cluster based
programs for commercialization research or business
planning for your invention?
      Submitted by: Anil Wali Date of Submission: 5-8-2020

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