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Thisdocumentprovidesaguideforengineerstoassessthelong-termperformanceofpolymericmaterialsusedincivilworks.Inthefirstpartofthepaper,thevariousdegradationmechanismslikelytobeobservedforpolymericmaterialsaredescribedandclassified.Thesecondpartofthepaperdiscusseselaborationoftestingprotocolsandrelationsbetweentestresultsandactualservicelifeofamaterial.Variousfactorsinfluencingthisrelationarediscussed.Theseincludetherelationsbetweentestingconditionsandactualserviceconditions,thelevelofaccelerationwhichcanbeaccepted–ornot–consideringthetypeofdegradationtobemodeledaswellasadiscussiononthemethodscurrentlyavailabletopredictaservicelifebasingonacceleratedtestresults.Generalrulesarefinallyprovidedtoassesstheapplicabilityofaproductforagivenapplication |
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