Waterproof additives are used to create materials that resist water. The admixtures lessen the likelihood of the concrete absorbing moisture by reducing its flowability and dimensional stability.

Waterproof concrete is typically the best option for water-retaining structures and underground lairs that aren’t as important and are less than 10 meters deep, where the land isn’t aggressive and flooding has less of an impact. This includes unfinished basic utility spaces as well as parking lots and workshops that can handle a little seepage and dampness.