Power supply through screed - duct or no duct?

[Adsibob]

55mm to 60mm of sand and cement screed is being poured over my UFH pipes/insulation on Friday. The floor finish will be microcement poured onto the screed - that is only 3.5mm thick. I need to lay a power cable under the floor finish so that the kitchen island has power. What's the best way of doing this given all the 16mm UFH pipes that will be in the way. Should I lay a duct in case the cable ever needs to be replaced? - though can't see why that would be the case

[markc]

Definitely in a duct