Terrazzo surface is a commonly used architectural decoration material. Because of its rich source of raw materials, lower prices, good decorative effect, and simple construction process, it has been widely applied. Low cost and good performance, widely used in large areas of public buildings, terrazzo surface production process you know? The following small series briefly introduces the terrazzo finishing process .
To make a terrazzo surface, it is generally required to go through the following procedures: Acceptance of the middle layer of plastering—elastic lines, sticking grids—wiping cement grout—terrazzo surface—spraying with oxalic acid—light wax.
1. Middle plastering acceptance
Check whether the surface smoothness of the middle plaster meets the requirements and whether the middle plaster has hardened. If the middle plaster has hardened! If the surface is smooth and meets the requirements, the acceptance is considered acceptable. Sprinkle water on the middle layer of plaster.
2. Elastic lines, stickers grids
According to the design of the grid size, the ink line on the plaster surface pops up the dividing line, and then paste the grid strips on the plastering surface with the cement paste. Strips can be made of copper strips, aluminum strips, or glass strips. The grouts on the side of the strips should be squared and the top angle of the grout should be less than 3 mm. The grid bars should be horizontal and vertical and tightly closed. Aluminum strips should be painted in advance to prevent cement corrosion.
3. Cement grout slurry
After the sub-grid is firmly affixed, the plastering surface is moistened with water, and after the water is collected, a layer of cement slurry (water-cement ratio 0.37 to 0.40) is scraped, and the cement grout slurry is applied. The pulp surface should be 1 to 2mm above the grid. The surface of the slurry is compacted with iron wipes. If there are different colors on the same surface layer, you should first do a dark surface layer, and then do a light color. After the dark surface layer solidifies, you can wipe the light surface layer.
4. Terrazzo surface
The terrazzo is maintained until the opener is not loosened. The grinding time is related to the temperature. The higher the ambient temperature is, the shorter the open time is. Honing time can be performed with reference to the days listed in Table 1-14.
The terrazzo surface is generally milled three times. The first time, it is grinded with 60-80 diamonds, coarsely ground until the stone is exposed, add water while grinding, and rinse with water after grinding. After slightly drying, wipe the same color slurry and cure for about 2 days. One-time use of 100 ~ 150 diamond grinding, grinding while adding water, to the surface smooth surface, after washing with water, rub the same color slurry, curing about 2d. Three times with 180 ~ 240 diamond or oilstone grinding, while grinding water, grind to the surface of the surface light, washed with water and wipe dry.
5. Grinding with oxalic acid
Dissolved in boiling water, the concentration of 5% ~ lon. Rub the oxalic acid solution on the surface, grind it with No. 280 oil stone, grind it until it is white, rinse it with water and let it dry.
6. Light wax
Polishing wax can be purchased in the store, its main components are Chuan wax, kerosene, pine perfume, fish oil and so on. After the terrazzo finish is dried, it can be rubbed with a soft cloth and rubbed on the layer. It should be rubbed evenly, and then wipe it on the wax surface with a clean soft cloth until the surface is bright.
Information on the terrazzo surface has been introduced here for everyone. I hope this article will help you. If you still have anything you don’t understand, you can follow our website and we’ll get back to you as soon as possible.
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