Dutch design method - ICPA

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Dutch design method - CRCPIn phase II, increasing obstructed deformations(due to further shrinkage and low temperatures)result in increasing number of cracks, sodecreasing distance between the cracks, whilethe crack widths remain constant.Would the CRCP ever reach the completed crackpattern (phase III), then further increasingobstructed deformations result in increasingcrack widths at constant number of cracks.26 October 2009 88
Dutch design method - CRCPThe pavement never should arrive in phase IVwhere increasing deformations result in yield ofthe reinforcement steel.To prevent this, the percentage of longitudinalreinforcement should always be greater than acertain minimum percentage.The reinforced tension bar model has beenvalidated on recently constructed CRCP’s on themotorways A5 and A50 in the Netherlands.26 October 2009 89
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Dutch design method - ICPA

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