EFFECT OF RUBBERISED ASPHALT ON PORTLAND CEMENT COATED AGGREGATES IN ROAD CONSTRUCTION UNDER SEVERE CONDITIONS OF TRAFFIC AND CLIMATE --14TH ARRB CONFERENCE, 28 AUGUST - 2 SEPTEMBER, 1988, CANBERRA, ACT, AUSTRALIA; PROC. PARTS 1 - 8

A more durable type of asphaltic concrete, using portland cement coated aggregate and 60/70 penetration Kuwait asphalt cement modified with natural rubber, is described for severe conditions of traffic and climate. Some functional aspects of portland cement in the aggregate binder system are discussed. The physico chemical factors that make rubber an effective elastomer to modify the binder are reviewed. This asphaltic concrete shows improvements in resistance to rutting or distortion, fatigue life, bleeding effects, attack by water, stability and reduction in temperature susceptibility with respect to conventional road materials. The improvements in engineering properties are discussed in terms of the changes in the surface texture of the aggregates produced by portland cement coating and the viscoelastic behaviour of the rubber modified binder. From the laboratory work undertaken so far at the road research centre, Kuwait, it is found that this asphaltic concrete is a better material to withstand heavy axle loads under high temperature conditions and the effects of water. Shortly this material will be used in normal highway construction (a). For the covering record of the conference, see IRRD no 808936.

• Record URL:
  • http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00050164
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Fernando, M J
  • Mesdary, M S
• Publication Date: 1988

Language

• English

Media Info

• Pagination: p. 78-86
• Serial:
  • Publication of: Australian Road Research Board
  • Volume: 14
  • Issue Number: 8
  • Publisher: ARRB
  • ISSN: 0005-0164

Subject/Index Terms

• TRT Terms: Adhesion; Aggregates; Binders; Bituminous mixtures; Coatings; Conferences; Deformation; Fatigue (Mechanics); Flexible pavements; Marshall test; Portland cement; Properties of materials; Rubber; Rutting; Strength of materials; Tests; Texture
• Uncontrolled Terms: Permanent
• Geographic Terms: Kuwait
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00483545
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: May 31 1989 12:00AM