Standard Test Method for Rotary Wheel Testing (RWT) of Compacted Asphalt Mixtures

Importancia y uso:

4.1 The test method is developed for determining the rutting and moisture susceptibility of asphalt mixtures. The rutting and moisture damage resistance can help differentiate mixtures whose service life might be compromised by permanent deformation or by moisture damage. The test method is valid for specimens that are tested at temperatures of 60 ± 0.5 °C [140 ± 0.9 °F]. Test specimen geometry is a diameter of 150 mm [5.9 in.] and a height of 115 ± 5 mm [4.5 ± 0.2 in.]. Specimens are prepared using a Superpave gyratory compactor.

Note 9: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.

Subcomité:

D04.20

Volúmen:

04.03

Número ICS:

93.080.20 (Road construction materials)

Palabras clave:

angle θ; asphalt concrete; creep slope; moisture susceptibility; rotary wheel tester; rutting; stripping infection point; stripping slope;