If my new block paving drive was laid on new concrete which was rained on ??

Question:Would this cause a problem. The concrete was not given time to set before the rain fell for 3 days. The pavers then laid the block paving which has a lot of white ? salt marks on it. Will the marks go themselves or is this because the concrete did not have time to fully dry out ?

Answers:
the salt marks will not go away as the pavers have laid it on concrete that has cracked from the bottom up due to the rain and not been given time to settle but they will fade slightly over time