ALTERATION OF ASPHALTS DURING MIXING

ENVEJECIMIENTO DE ASFALTOS DURANTE EL MEZCLADO

This paper describes laboratory tests on the alteration of asphaltic cement that occurs during the manufacture of paving mixtures at the mixing stage. The bituminous mixtures were prepared in a laboratory mixer under controlled conditions (time and temperature). The asphalt under test recovered by means of the Abson method. The alteration was studied by measuring the viscosity with the sliding plate microviscometer and by infra red spectra. A study of the action of oxidation inhibitors was also carried out to determine the effectiveness and the mechanism of oxidation inhibiting agents. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03025756
• Corporate Authors:

  Lab Ensayo Materiales e Investigaciones Tecnol

  52 entye 121 y 122
  La Plata, Buenos Aires,   Argentina 
• Authors:
  • Agnusdei, J O
  • Frezzini, P O
  • Comai, A A
• Publication Date: 1971-10-12

Language

• Spanish

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 43-73
• Serial:
  • Lemit Anales
  • Issue Number: 4
  • Publisher: Buenos Aire Laboratoriode Ensayo de Materiales
  • ISSN: 0302-5756

Subject/Index Terms

• TRT Terms: Asphalt cement; Bituminous mixtures; Chemical inhibitors; Laboratory tests; Measuring instruments; Mixing; Oxidation; Temperature; Time; Viscosity
• Uncontrolled Terms: Change
• ITRD Terms: 5292: Ageing; 6155: Apparatus (measuring); 4948: Binder; 4963: Bitumen; 4967: Bituminous mixture; 6797: Infrared; 7137: Inhibitor; 6237: Laboratory (not an organization); 3649: Mixer; 6722: Temperature; 6255: Test; 5414: Time; 5936: Viscosity
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00082801
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Jul 2 1975 12:00AM