The slabs are covered with thermal blankets which help with curing. The objective is to retain moisture under the blankets as the concrete cures.  Photo 10 of 10 in Dwell Home Venice: Part 10 by Michael Sylvester

Dwell Home Venice: Part 10

10 of 10

The slabs are covered with thermal blankets which help with curing. The objective is to retain moisture under the blankets as the concrete cures.