For external and internal plastering of buildings, the proportion of cement mortar is varied.Finally, plaster is cured for at least seven days.
Then finishing coat is applied over the tough and damp surface of the primary coat within 48 hours, then the coat is correctly toweled and finished smooth by the wooden float.Then this coat is roughened by means of a second scratching tool so as to have a second coat or finishing coat.Note that mortar is dashed over the surface with a trowel, so to carry the next coat of plaster, the surface of the first coat allow to set but it should not dry.For two coats of plaster, the primary coat also called rough coat which initially dashed in opposition to the surface of the wall in a layer of 8 mm to 10 mm in thickness,.After application of this plaster the floor is leveled with the help of wooden float and straight edges, then the floor is lastly polished with a trowel.For one coat plaster, cement plaster is applied on the prepared surface between screeds with a mason’s trowel.When the thickness of plaster is more than 15 mm or when a finer finish is required, then cement plaster is required to be applied in two coats.1 part of cement and 4 part of sand) and higher proportions can also be used depending upon nature. It consists of the usual proportions 1:4 (i.e.The cement plaster is normally applied in a single coat, the thickness of the coat might be 12 mm, 15 mm, or 20 mm depending upon the kind of building to be plastered.To cover the use of porous materials of masonry work.To provide a uniform, smooth, regular, clean, and durable surface with an improved appearance.
0 kommentar(er)
