STUDY OF MODIFIED ASPHALT

Several modified asphalts are systematically studied in this paper by using GPC and DSC chemical means in order to explore the mechanism of asphalt modification. A concept of constituent state and molecular weight are proposed to explain the performance of asphalt and the mechanism of polymer modification of asphalt. It is concluded that: 1) the molecular weight and the constituent state are the two factors influencing performance of asphalt. High-quality asphalt is characterized by high molecular weight and the peculiarity of constituent transition which happens at low temperature scope; and 2) with the addition of macro-molecular polymer, the constituent formation is changed due to the swelling and absorption, which leads to the change of the constituent state transition characteristic, so the performance of asphalt is improved, especially the temperature stability and viscosity at high temperature. For the covering abstract of the proceedings, see IRRD 490713.

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  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9628267069
• Corporate Authors:

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029

  INFORMATION INSTITUTE OF SCIENCE AND TECHNOLOGY, MINISTRY OF COMMUNICATIONS, P.R. CHINA

  240 HUIXINLI, CHAOYANG DISTRICT
  BEIJING, ZZ BEIJING    100029
• Authors:
  • ZHENGQI, ZHANG
  • DENGLIANG, ZHANG
• Conference:
  • 3RD INTERNATIONAL CONFERENCE ON ROAD & AIRFIELD PAVEMENT TECHNOLOGY, PROCEEDINGS
• Publication Date: 1998-4-28

Language

• English

Media Info

• Features: References;
• Pagination: p. 624-9
• Serial:
  • Volume: 1

Subject/Index Terms

• TRT Terms: Bitumen; Chemical analysis; Durability; Molecules; Polymers; Temperature; Viscosity; Weight
• Uncontrolled Terms: Modifications
• ITRD Terms: 4963: Bitumen; 7163: Chemical analysis; 8525: Conference; 5910: Durability; 4555: Material (constr); 9048: Modification; 7196: Molecule; 2955: Pavement; 7482: Polymer; 8669: Process control; 6722: Temperature; 5936: Viscosity; 5485: Weight
• Subject Areas: Geotechnology; Materials;

Filing Info

• Accession Number: 00752733
• Record Type: Publication
• Source Agency: Transport Research Centre (CDV)
• ISBN: 962-8267-06-9
• Files: ITRD
• Created Date: Sep 28 1998 12:00AM