The application of cement plaster is time-consuming process hence increases the project cost.Percentage of wastage is higher during application.After a 48-hours period finished coat plaster may be applied to interior cement base coats. of interval between coats of interior Portland cement plaster. Cement plaster is comparative gives a rough finish.Density of cement plaster is higher than gypsum plaster hence the load on the building is increased as compared to gypsum plaster and needs water to attain strength.Development of shrinkage cracks is quite frequent in cement plaster.The space looks smaller and unattractive as it is dark grey in color.After sand cement plaster, POP punning is required for the better and leveled surface finish.The mixture of the sand and cement is to be done on site in different ratios.Cement plaster is not a rust inhibitor.It cannot be applied on the smooth surface.It has more or less same acoustics properties.Cement plaster up to 200 to 300 C acts as refractory material and resists fire but later it becomes brittle and cracks and falls and loses bond with wall.The site becomes dirty due to it and also needs more time for works. Cement plaster needs an enormous amount of water during its curing period.Pre-Curing and Post-Curing are necessary for cement sand plaster.In the bathroom or in the kitchen it will lead to the formation of condensation on the walls and as consequences mould, fungi will develop and also floor will become slippery due to moisture.
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