Adding Bulking of Sand & Wastage. Three coat plaster … If you have uniform level you can go from 10-15 mm upto even 60 mm if required in multiple coats. Plaster Thickness = 12mm (Outer-20mm, Inner 12mm) Volume of mortar = 9m 2 x 0.012m = 0.108m 3 Ratio for Plaster Taken is = 1 : 6 Cement Plaster Spray Machine - Latest Technology Construction Equipment Machinery Total Plaster Area = 100 m 2. 2. Apply a base coat of plaster over the layer of dash with a steel trowel. Two coat plaster (b) for finishing coat. Groundwork for Plaster. This calculation required sum data like the thickness of plaster, cement sand ratio for plastering, area of plaster so, we all data assume that. The layer should be somewhere from 10 to 15 mm thick. 10 to 15 mm. It does not define a unit of work or assign responsibility for contractual purposes. 3 to 8 mm. The Cement for House Construction usually has the following thickness levels.. To get dry volume consider 35% bulking of sand and 20% wastages = 1.2 m 3 x (1+0.2+0.35) (Rather than 35% sand bulkage and 20% wastage you can add 1.54 as constant) Leave it rough if you prefer a textured look. Outer plaster thickness depends on the plum level over the entire surface. 3 to 8 mm. Required volume of Cement Mortar = plastering area x plastering thickness = 100 x 0.012 = 1.2 m 3. A dot means patch of plaster of size 15 mm * 15 mm and having thickness of about 10 mm. Thickness. In order to get uniform thickness of plastering throughout the wall surface, first fix dots on the wall. Cement Sand Ratio for Plastering = 1:6. After that 8mm thick layer of second coat with cement … For example, ASTM C926-20b: Standard Specification for Application of Portland Cement-Based Plaster covers guidelines for the application of full thickness portland cement-based plaster or stucco for exterior and interior work. If you want a flat wall, smooth the plaster out. of Coat of Plaster. Apply it in small strokes, making sure it is level and uniform. 1. Three coat plaster (b) Second coat. Three coat plaster (a) Base coat. Yes we have done 60mm plaster with very good quality in plaster. So to get 1.2 m 3 of wet cement mortar, we have to multiply the dry volume by 1.55. 10 to 15 mm. Two coat plaster (a) for under coat. No. Step 4 - Apply the Plaster. Volume of cement mortar required = ( Plastering Area x thickness ) = 100 m 2 x 0.012m = 1.2 m 3 (This is wet volume of cement mortar (after mixing water) but we need dry volume. Here is the useful Plaster calculator to calculate cement and sand for plastering. What is 1.55 constant in the calculation? Amount of plaster mortar required for plastering 100 sq.ft. The minimum thickness of cement plaster must be of 10mm and it is sufficient to maintain satisfying smoothness on the surface of concrete walls. For first coat, 12mm thick layer of cement sand mortar in 1: 4 ratio is preferred. 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