TITLE:
Developing a Maintenance Model for Pavements Vulnerable to Climate Change in South Eastern Nigeria
AUTHORS:
Chukwuemeka C. Maduagwu, Onuegbu O. Ugwu
KEYWORDS:
Pavement Vulnerability, Climate Change, Global Warming
JOURNAL NAME:
Engineering,
Vol.14 No.9,
September
28,
2022
ABSTRACT: The South East region of Nigeria faces widespread flood
during rainy seasons as a result of inadequate drainage channels, poor drainage
management and most often the absence of drainage. The increase in rainfall can
be attributed to climate change. Climate change has become one of the most
common sources of road pavement failure in the region which leads to rapid need
of maintenance as a result of flooding and this problem is becoming worse
yearly. Most roads in the region suffer submergence because of flooding. In
this research work, a predictive model will be developed to control maintenance
of road infrastructural systems in the South-East in terms of fatigue. This
work is limited to pavement behavior with respect only to fatigue life using
the mechanical/elastic properties as the input parameter using additives in the
established failure conditions considering Federal roads in the South East as
case studies. It is also important to note that the research has a well-defined
assumption within the scope to expectancy is 20 years. The loads causing
pavement failure are ≥80 KN single axle. Passenger cars will not be included in the passenger. The
performance of flexible pavement in real life is synonymous with performance of
hot mix asphalt concrete (HMA) in the laboratory. The fatigue life of a
pavement is the number of load repetitions ≥80 KN single axle load and finally, traffic loads and
moisture are the only contributors to pavement damage.