Joining of paving elements involves coating of the paved area with a foam mixture containing, in addition to substances decelerating mortar hardening, surface tension reducers and water-soluble alcohols

摘要

Directly after filling of the joints with a cement-bonded mortar, the paved area is coated with a foam mixture containing hardening decelerators and, as further functional constituents, surface tension reducers and water-soluble alcohols.