ABSTRACT
The basic material applied in Poland for building walls is Autoclaved Aerated Concrete (AAC) and ceramic elements. Most often AAC is applied in residential construction, it is also eagerly used in industrial construction. The sockets were equipped in cylindrical wrist joint which eliminated the influence of eccentricities which were formed by accident while loading. The application of reinforcement in the bed joints when the mortar was laid only on one bed joints surface of the masonry units reduced the values of cracking and destruction stresses in relation to the values obtained in the non-reinforced walls. The increase of the values of cracking and breaking stresses as well as shear modulus in the reinforced walls was present only when filled in head joints were applied. Models with reinforcement in the form of trusses and meshes made of plastics showed smaller strain angles.
