Abstract

AFANASIEVA, Natalia; ALVAREZ, Mario  and  ORTIZ, Mónica J.. RHEOLOGICAL CHARACTERIZATION OF AGED ASPHALTS. C.T.F Cienc. Tecnol. Futuro [online]. 2002, vol.2, n.3, pp.121-134. ISSN 0122-5383.

The present work shows the rheological properties of the three Colombian asphalts produced in the refineries at Barrancabermeja, Cartagena and Apiay, exposed to the open air during 18 months using a specially designed testing bank. Rheological behavior was evaluated using the new specifications of SHRP technology in the Brookfield and DSR rheometers to determine viscosity, Shear Stress, Shear Rate, Dynamic Share Modulus and other related variables. The measurements were made using different temperatures and load times.

Keywords : Asphalts; climate; aging; rheological properties.

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