ABOUT PENETRATION INDICES OF ARGENTINA ASPHALTIC CEMENTS

SOBRE EL INDICE DE PENETRACION DE LOS CEMENTOS ASFALTICOS ARGENTINOS

The object of this paper consists in veryifing if asphaltic cements used in Argentina respond to the standards used by Pfeiffer and Van Doormal in their formula for the penetration index, established on the base of the properties of asphalts used in 1936. Evolution in industrial processes and the introduction of crudes of other origins after that date, and the standards IRAM-6694-(1957) fixing -2.0 and + 0.5 as pi limiting values for Argentine asphalts for road construction vindicate this effort. The results show the need for a modification of the formula to preserve the meaning of the pi in the asphalts under consideration, i.e., for the index to be a convenient statement of thermal susceptibility to moderate temperature. On the other part the indices for each type and origin of asphalt in the investigation show no relation with the temperature needed to attain the necessary viscosity range for mixing, laying, and densification in conventional hot mixtures. /TRRL/

  • Corporate Authors:

    Laboratorio de Investigaciones Viales, Argentina

    Maipu 215 - OF 304
    Buenos Aires,   Argentina 
  • Publication Date: 1971

Language

  • Spanish

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00083169
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS
  • Created Date: Jul 2 1975 12:00AM