Concrete is always preferred if there is a possibility of water exposure to pavement as asphalt pavement are susceptible to water. Concrete pavement mix if properly designed will remain impermeable to exposed water. Several concrete structures are designed in hydraulic bound environment from dams to structures in sea water.

When cracks eventually initiate as a result of lateral deformation of pavements with insufficient R-value, the underlain layers are exposed to moisture effect. Generic failures will definitely result because volume changes would have started at the subgrade layer of clay.

I appreciate your submission Sir. The project is about FDR (full depth reclamation) ie beyond the asphalt surfacing layers. Thanks anyways

Use of randomly distributed fibers (polymer fibers) as reinforcement in concrete pavement and low water cement ratio, is one way to reduce cracks in pavement due to uneven stress distribution, shrinkage etc.

Keeping a barrier like plastic sheet between water environment available ( below pavement) and pavement, is one option.

If surrounding water is acidic in nature, it will corrode steel reinforcements in pavement if any , particularly at joint locations.

Removal of water coming in contact with pavement, by suitable drainage system is a good preventive method for avoiding ill effects of water on pavement.

If pavement is exposed to humid atmosphere, provide suitable coating/paint on pavement surface.

Thank you, Sonar. That seems more idyll.

Thank you for your question.

We have follown Australian protole testing, that includes drying shrinkage and erosion loss. If you need firther information on those tests, we could readily send you.

Best regards

Dear Dr. Kennedy,

If full depth of concrete pavement is in hydraulically bound environment, the effect of carbonation is negligible. However, acidic nature of water may react slowly with concrete. Depending upon water pressure( depth of water over pavement), penetration of water into voids of concrete as per the quality of concrete. If water is continuously flowing over and around pavement, erosion of pavement is will be there in due course of time. Durability of concrete will be less in sea water environment as compared to river water( clean ).

Thank you Sonar, that was helpful. Durability is primarily conducted on loss of strength on immersion protocol. Brine bound environment affects durability more on prolonged exposure. Once again thank you, dear Sonar.

Proper drainage channel on either side of pavement also help in reduce the water penetration into pavement. Some geosynthetics materials now a days are available to increased the durability and pavement protection against hydraulically bound environment.

Thank you Bhavin, that was helpful.