Comparative
study of asphalt concrete laboratory compaction methods to simulate field
compaction
Khan
Z.A.1; Al-Abdul Wahab
H.I.;
Construction
and Building Materials, Volume 12, Number 6, 1 September 1998,
pp. 373-384(12)
Publisher: Elsevier Science
Abstract:
The main objective of
this study was to compare different laboratory compaction methods to field
compaction and to select the laboratory method that was similar or close in
compaction to that of the field. The candidate compaction methods were: (a)
Marshall Automatic Impact Compaction; (b) Marshall Manual Impact Compaction;
(c) California Kneading Compaction; (d) Gyratory Shear Compaction (angle of
gyration 1.25o); and (e) Gyratory Shear Compaction (angle of
gyration 6o). The evaluation of the five laboratory compaction
methods was based on the similarity between the engineering properties of the
laboratory compacted samples and the field cores. The engineering properties
studied were resilient modulus, air voids, bulk density, and static creep
behavior. The laboratory compacted specimens and field cores were also
evaluated with the objective of identifying a promising laboratory compaction
technique which would be able to produce mixtures with engineering properties
closest to those of mixtures compacted in the field. Samples for this study
were selected from four projects located at different locations in the
Keywords: Asphalt; Concrete; Compaction; Marshall test