Experimental installation of permeable base first interim report.
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2007-08-01
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Abstract:The effects of excessive water within pavement structural sections has been shown to decrease the service
life of our nation’s roadways. Some of the problems associated with this excessive water include
premature rutting, cracking, faulting, increased roughness, and a relatively rapid decrease in the level of
service ability. These problems are caused by a decrease in the ability of the structural section to transmit
the dynamic loading of traffic, and also through the development of excessive pore pressure which can
cause pumping of the subbase material up through the cracks in the pavement surface. Beginning in 1970,
there has been an increasing interest in pavement drainage, as premature failure of pavements has become
a significant problem. One treatment to increase drainage is the use of permeable base systems along with
longitudinal pipe edge drains as a means to address premature pavement failure.
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