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Abstracted in databases:
Thomson SCIE: Science Citation Index ExpandedTM (Web of
Science),
INSPEC,
EBSCO,
TRIS/TRIS Online, VINITI, CSA's ERD, CSA/ASCE (CSA's TRD), SCOPUS (Elsevier Database)
2015 Impact Factor: 0.519 ©2015 Thomson Reuters, 2015 Journal
Citation Report®
ISSN 1822-427X print
ISSN 1822-4288 online
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"The Baltic Journal of Road and Bridge Engineering"
Vilnius: Technika, 2010, Vol
V, No
1, p. 38-42. |
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Viktors Haritonovs, Juris Smirnovs,
Juris Naudžuns |
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Prediction of Rutting Formation in
Asphalt Concrete Pavement |
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DOI: 10.3846/bjrbe.2010.05 |
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Asphalt pavement in actual circumstances is
subjected to the repetitive and changing transport
load. As a result of the repetitive load impact,
both elastic and plastic deformations occur to the
pavement. Accumulation of plastic deformations in
one or several layers leads to appearance of
permanent deformations or rutting. This type of
deformations reduces safety and convenience of
traffic. Aim of the research is investigation of the
rutting dynamics on the dense graded asphalt
concrete (AC) and stone mastic asphalt (SMA)
mixtures. The research has been made by using the
standard performance test method – wheel tracking
test (WTT). Five compositions of the dense graded AC
mixture and two compositions of the SMA with the
conventional aggregate and one reference mixture AC
11 with the Martin steel slag aggregate have been
used in the experiment. The B70/100 unmodified
bitumen and SBS modified ModBit 80B has been used
for the investigated mixtures. The results have
shown poor strain stability of the conventional
mixtures with unmodified bitumen under the heavy
transport load, in comparison with the reference
mixture AC 11 and SMA with modified bitumen. The
results of investigating the rutting dynamics under
the intensive heavy transport load have shown that
the allowed rut depth 25 mm is reached already
during the first year of the asphalt pavement
exploitation. |
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Keywords:
asphalt concrete (AC), modified bitumen, permanent
deformation, rutting, wheel tracking test (WTT),
equivalent single-axle load.
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