I extended my house a few years ago, but, could not lay the wooden floors for some weeks, because, I was advised by Noyeks (who we bought the solid flooring from) that the newly laid levelling compound (cement floor) had to dry out. Otherwise, this bubbling would occur. I got a lend of a dehumidifier and it was amazing the amount of water that would be collected every day. The Noyeks representative then did a moisture test. I'm not too sure if Noyeks are still trading, but, any good supplier should know the drill.
Our builder would have laid the floor down immediately only I was otherwise advised.
Perhaps, you could take up the laminated flooring temporarily and allow the underneath to dry out or get a dehumidifier?