Juniper Publishers| Civil Engineering Journal
Study of Surface Drainage Runoff and Vertical
Drainage of Flexible Pavement under Laboratory Wheel Track Test
Authored by Aqeel Al
Adili
Proper drainage is a very important consideration in the
highway design. Inadequate drainage facilities can lead to premature
deterioration of the pavement and the development of adverse safety conditions
such as cracks and rut. It is common, therefore, for a sizable portion of
high-way construction budgets to be devoted to drainage facilities. In essence,
the general function of a highway drainage system is to remove rain-water from
the road and the highway right-of-way. This paper presents a study of the
vertical drainage properties and the deterioration trends in water seeping of
the pavement by testing the laboratory pavement section models with 2% slope
which is very important in the selection of a suitable pavement surface layer
and the base of the pavement. It has been concluded that by increasing number
of days, when the pavement being saturated, the more amount of the water will
runoff and the time of ending runoff increased by 63% after 71 days of study.
The rut depth appeared after 960 of wheel repetitions and recorded a 97% of rut
depth increase after 93 days of load repetitions under different rain
intensities with two different durations of time.
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