ABSTRACT
An essential condition for the integrity of walls is consistency in connections of a ceramic element and mortar that ensures adequate anti-moisture protection. The mortar shall protect the wall against water penetration and enable its safe evacuation outside the wall. Properties of this type have been provided intuitively in historical structures. Contemporary facing wall structure designs utilize clinker bricks featuring low moisture absorption and cement bricklaying mortars, the properties of which are modified with lime, truss or chemical additives. The basic condition of correct functioning of walls is the structural integrity of construction. Mortar plays special role in assuring the wall integrity. For cement mortar without additions as well as for cement mortar with plasticizer occurs high joint permeability, caused by joint defects in area of upper contact of joint with wall element. In contemporary construction of facial walls there are used clinker bricks of low impregnability and cement mortars which properties are modified by introducing lime or chemical additions.
