Assessment of Piarc Recommendation on the Combatting of Pump Inc in Concrete Pavements

Within the PIARC Concrete Roads Technical Committee,ninecountrieshaveworkedout a common platform of recommendations for improving the longterm performance of concrete pavements by implementing appropriate design provisions, draining of interface infiltration water, use of low-erodability subbase materials, optimized drainage,and surface waterproofing. Some countries hadalready applied all or part of these design provi-sions on heavy-traffic pavements long before theappearance of the recommendation, and theadditional experience gained in recent years hasenabled usto progress further in our knowledge, todemonstrate the validity of the observed state ofthe art, and to pinpoint the areas in which workremains to be done.