RUBBERISED ROADS - A CRRI EXPERIENCE

For various reasons, bituminous pavements fail to attain the expected service life in the adverse climatic, environmental, and traffic conditions prevailing in India. In an attempt to improve their durability in these conditions, much research is being conducted on additives for improved, durable, cost-effective bituminous binders, and especially on modified binders. This paper presents the results of laboratory studies and field trials on bitumen-rubber products at India's Central Road Research Institute (CRRI). After extensive field trials, the CRRI has developed a new method of sealing cracks and delaying reflection cracks, on overlays using membranes of tyre crumb rubber modified binders. It was found that rubberised bitumen mixtures are less liable to wide temperature variation than ordinary bitumen, and more resistant to thermal cracking, fatigue cracking, rutting, moisture damage, and age hardening. Field trials at the CRRI and elsewhere confirm that it is cost-effective to rubberise the bitumen, because the life-cycle cost increase is moderate compared to the extension of useful service life. Rubber from discarded tyres can be used, solving the problem of how to dispose of worn-out tyres. The author recommends that India should adopt rubberised road construction in India as soon as practicable.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1790571
• Corporate Authors:

  Indian Roads Congress

  Jamnagar House, Shahjahan Road
  New Delhi,   India  110 011
• Authors:
  • GUPTA, A K
• Publication Date: 1997-4

Language

• English

Media Info

• Pagination: p. 53-68
• Serial:
  • Indian Highways
  • Volume: 25
  • Issue Number: 4
  • Publisher: Indian Roads Congress
  • ISSN: 0376-7256

Subject/Index Terms

• TRT Terms: Administration; Binders; Bituminous materials; Durability; Field tests; Improvements; Pavements; Recycling; Rubber; Tests; Tires
• Uncontrolled Terms: Modifications
• Geographic Terms: India
• ITRD Terms: 155: Administration; 4948: Binder; 4955: Bituminous materials; 5910: Durability; 9108: Improvement; 6226: In situ; 8045: India; 9048: Modification; 2955: Pavement; 4573: Recycling (mater); 7494: Rubber; 6255: Test; 1381: Tyre
• Subject Areas: Administration and Management; Highways; Pavements; Vehicles and Equipment;

Filing Info

• Accession Number: 00743525
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, ATRI
• Created Date: Dec 29 1997 12:00AM