6/28/2023 0 Comments Casting plasterSuitable retarders are added to increase setting time. Plaster of Paris hardens with 3 to 4 minutes of adding water. Ground gypsum is heated at 160 o to 170 o C to obtain plaster of parish. It is a quick setting and elastic in nature. This finish is used for a superior type of construction. Granite and silicon are mixed with mortar. To protect persons working in X-ray rooms from radioactivity, finishing coat is applied with mortar made of cement, sand, and barium soleplate. Asbestos Marble Plasterįor a better appearance of finishing coat, mortar is made of cement asbestos and finely crushed marble and applied as finishing coat. Such plaster is useful in interior walls of halls auditorium etc.Īlso, read: What Is Plaster | Type of Plaster | Defects In Plastering 8.2. These honeycomb minute openings absorb sound. The materials like gypsum mixtures are added in mortar for finishing coat such a coat undergoes a chemical reaction and produces gas bubbles and due to the bubbles tiny openings are formed in the coat and it appears like a honeycomb. The following are the special materials to be used. To meet with some specific requirements of finished surfaces such as durability better appearance, fireproofing, heat insulation, etc. Special Material Used in Plastering for Finishing Coat This is used with sketch plastering ornamental patterns or textured surface are made on the final coat of stucco plastering by working with suitable tools. Such a scrapped surface is less liable to cracks. Steel straight edge old saw blades or such other tools may be used for scrap. The surface is scrapped in a pattern for a depth 3 mm. Then it is allowed to be stiffened for a few hours. The final coat of plaster of 6 to 12 mm applied. In this type of final finish coat of plaster is applied to have thickness 12 mm, and when it is a wet condition, the pieces of gravel flint are pressed with hand on the surface.įlints of different colours may be used to obtain beautiful patterns.Īlso, read: What Is Plaster | Methods of Plastering 6. ![]() The final coat of plaster is having Cement: sand mix proportion of 1:3 and thickens 12 mm. The pebbles may be lightly pressed into the mortar with the help of wooden float. In this finish, clean pebbles of size from 10 to 20 mm size are dashed against the final coat of plaster. This finish is water-proof, durable, and resistant to cracking and crazing. Every finish gives your wall a different appearance, and it’s up to you to choose which one to use in your project. There are several types of plaster finish, and in this article, we will tell you how to achieve five different styles. Plastering is the process wherein the coarse surfaces of your walls or ceilings are covered to achieve a smooth and aesthetic finish. If you want to decorate your walls or cover their uneven surfaces, your contractors can finish your building with plaster. Having your walls up is not the end of the building construction process.
0 Comments
Leave a Reply. |