What is Mortar (masonry)?
[[File:Three_old_bricks_held_together_with_mortar.jpg|thumb|Bricks held together with mortar.]] '''Mortar''' acts as a kind of [[glue]] to keep [[stone]]s and [[brick]]s together. When it is used, it is a kind of paste. Some kinds of mortar need to dry before they can act as a glue, in others, a [[chemical reaction]] is needed. Certain kinds of mortar can withstand fire for some time. The first kind of mortar was developed in [[Ancient Rome]]. {{stub}} [[Category:Building materials]]