RUBBERIZED ASPHALT PAVEMENTS: CONSIDERATIONS ON TEST RESULTS

This is a preprint of a paper presented at the International Symposium on the Use of Rubber in Asphalt Pavements, Salt Lake City, Utah, May 1971. The results are discussed of tests which were made on highway surfaces in Italy in 1969 and 1970 during the application of asphalt concrete containing "elastra" synthetic latex. These tests were conducted on road samples as well as on samples taken from the mixing plant, with the object of studying and testing a number of factors showing the effects of using latex in these mixtures. It is, at present, the practice in Italy to add the elastomer in latex from while mixing the aggregates with bitumen in the plant. A series of tests were made which demonstrate that the latex should be introduced a few seconds after starting to spray with bitumen. Further test showed the stress reaction of asphalt concrete with and without an elastomer, to evaluate the effects of synthetic rubber on the useful life of a flexible pavement. Further studies were made on the deformation characteristics of these pavements, together with their skidding resistance properties.

• Corporate Authors:

  Politechnico di Milano

  Instituto di Vie e Trasporti
  Milan,   Italy 
• Authors:
  • Centolani, G
  • Rampichino, M
• Publication Date: 1971

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 22 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete; Asphalt emulsions; Asphalt mixtures; Bituminous aggregates; Deformation; Elastomer modified asphalt; Elastomers; Flexible pavements; Latex; Latex asphalt; Mixing plants; Pavements; Skid resistance; Skidding; Synthetic rubber
• Old TRIS Terms: Asphalt latex emulsion; Bituminous mixing plants
• ITRD Terms: 4963: Bitumen; 8525: Conference; 3666: Construction method; 5595: Deformation; 2944: Flexible pavement; 8051: Italy; 3649: Mixer; 7494: Rubber; 3031: Skid resistance; 5575: Stress (in material); 8122: USA
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 00080389
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Conf Paper
• Files: ITRD, TRIS
• Created Date: Feb 27 1975 12:00AM