Gypsum an old product with a new use. Gypsum is calcium sulfate CaSO 4 . Refined gypsum in the anhydrite form no water is 29.4 percent calcium Ca and 23.5 percent sulfur S. Usually, gypsum has water associated in the molecular structure CaSO 4 2H2O and is approximately 23.3 percent Ca and 18.5 percent S plaster of paris.
Let us take an example of a wall to be plastered Length of wall 2m Width of wall 1.5m Thickness of plaster to be used 20mm Plaster to be carried out in two layers of 10mm each. The quantity of cement mortar required will be 2 x 1.5 x 201000 0.06 m3 of mortar. The rate analysis of mortar need to be done for the calculated quantity required.
Aug 06, 2018 The application of gypsum plaster is time saving process, thus decreases the project cost. Gypsum plaster is costlier than cement plaster for same thickness. Gypsum plaster is advisable when compared to cement plaster as it gives better-desired finish and performance.
Gypsum plaster should not be used in moisture-laden areas like the bathrooms, kitchens, balconies or damp basements. Gypsum is a superior finish compared to cement plaster. However, it is advisable to go with gypsum plaster for the internal walls and ceilings and use cement plaster for
Aug 10, 2021 Global Gypsum and Anhydrite Market to Reach 382.1 Million Metric Tons by 2027Amid the COVID-19 crisis, the global market for Gypsum and Anhydrite estimated at 306.6 Million Metric Tons in
Aug 18, 2017 Standard packaging size. 40 kg. 25 kg. Consumption per 12mm thick plaster For 1 4, Cement 39 kg Sand 4 cft covering 100 sq.ft. area 40 kg bag 16 to 18 sq.ft. 25 kg bag 18 to 21 sq.ft. Compressive strength. 3.5 to 7.5 MPa depending on ratio Example 14 4 to 5 MPa. 5 7 Mpa.
Rate per square metre for cement sand plaster is equal 299310 299.3 say 300 rupees or 27.87 say 28 rupees per square feet. So the rate of cement sand plaster for 13 mm thickness is 300 rupees per square metre. For gypsum plaster of 13 mm thickness, the rate is 309 rupees per square metre.