Masonry-plastering mortar in the form of a factory-prepared dry mix, with very good working properties, intended for masonry and plastering works inside and outside buildings in. It serves, among others for erecting a brick and brick wall in ceramic, concrete, expanded clay, silicate and cellular concrete. It is suitable for traditional plastering, filling gaps, defects and leveling substrates, successfully replacing mortars traditionally prepared on site. It speeds up and facilitates work.