Ciment et Architecture

Glossary

Additive

Product added to the mortar in small quantities (less than 5% of the mass of cement) to modify the properties of mortars or concretes, either when wet (such as Tempo, which is the  Prompt natural cement setting retarding agent) or after hardening.

Alteration

An alteration refers to an accidental or natural change that occurs to a cultural asset. The term describes both the process and the result.