1. Base treatment → hanging vertical, sleeve, finding rules → plastering cake → wiping mortar → plastering layer gravel → watering curing → elastic line → vermiculite
2 Base treatment: firstly flatten the concrete or brick protruding from the wall surface, the concrete wall surface for the construction of the large steel mold should be chiseled, and brushed with a wire brush once, and then watered and moistened. If the surface of the base concrete is very smooth, the following "hairing treatment" method can be adopted, that is, the surface dust and dirt are cleaned first, and the oil on the surface is brushed off with 10% caustic soda, and then the alkali is cleaned with purified water. The liquid is washed and dried. Then use 1:1 cement fine mortar to mix the water with 20% of the 107 glue, spray or use the semi-mortar mortar to smash the wall, the sputum point should be even, after the final condensing, watering and curing until the cement mortar 疙瘩 all stick to It has a high strength on the smooth surface of the concrete (the hand is not moving).
3 Hang vertical, square, find rules, paste gray cake: according to the requirements of the design drawings, the design needs to be the axe wall, the cylindrical center line and the surrounding corners and the door window corner, with the line hanging vertical line, posted The gray cake is straight. The horizontal line is controlled by the floor as the horizontal baseline or the +50cm elevation line. When each layer is bottomed, the gray cake is used as a reference point to make the ribs, the squares, the rules, and the gray cakes, so as to control the bottom ash, so that the horizontal and vertical. At the same time, pay attention to find the flow gradient of the finish, the waistline, the window sill, the awning and the steps.
4 Wipe the bottom mortar: the structural surface is watered and wet in advance, first brush a cement paste of 107 glue with 10% water consumption, followed by layering 1:3 cement mortar according to the rushed ribs, first The thickness should be 5mm, and the squeegee should be used after wiping; when the first six to 70% dry, the second time can be wiped, the thickness is about 6~8mm, and it is evened with the ribs, compacted with trowel, The scraper bar is leveled and bristled, and the yin and yang corners of the wall are to be squared. Watering and curing after final condensation. The bottom layer of the step should be smeared with cement mortar according to the width and height of the step, smoothing and compacting. The width and height of each step should meet the requirements of the drawings. The steps face 1% of the outer slope.
5 Surface layer gravel: According to the requirements of the design drawings, the grid line is played on the base ash. When the design is not required, it should be properly divided. First, the walls, columns, steps and Other foundations are watered and moistened, and then the gridded strips are pasted with plain cement paste. After the strip has a certain strength, the layer of stone residue can be wiped, firstly layered with a layer of cement slurry and then the surface layer is used, and the surface layer is made of 1:1.25 (volume ratio) cement stone slurry with a thickness of about 10 mm. Then use the iron trowel to repeatedly press it several times until it is leveled and compacted, with no gaps in the corners. The surface cement slurry is then brushed off with a soft brush to make the exposed gravel uniform. After the surface layer is wiped off, watering is maintained about 24 hours.
6 Meteorite: After wiping, the test can be started at room temperature (15~30°C) for about 2~3d. When the temperature is low (5~15°C), it can be tested after 4~5d. After the test, the stone can not be officially collapsed. In order to ensure that the corners are intact, the axe stone has a real stone feel, and it can be placed at the edge of the wall, the pillars, etc., and it is better to leave the side strips or leave 15 to 20 mm of side strips. In order to ensure that the crepe is vertical and parallel, a vertical control line can be drawn in the division, or a parallel vertical line can be drawn on the step to control the crepe and keep parallel with the edge. When using the stone, the force should be consistent, perpendicular to the large surface, and squat in one direction to keep the crepe even. Generally, the depth of the meteorite is more than one-third of the stone slag, so that the fake stone is beautiful and elegant.
7 Winter construction: generally only during the early winter, construction can not be carried out during the severe winter.
7.1 In the winter construction, the temperature of the mortar should not be lower than 5 °C. Anti-freezing measures should be taken before the mortar is hardened.
7.2 Walls constructed by the freezing method shall be rusted and then plastered.
7.3 The mortar plaster layer shall not be frozen at the beginning of hardening. When the temperature is lower than 5 °C, the mortar used for outdoor plastering may be mixed with an admixture capable of lowering the junction temperature, and the amount of the mortar should be determined by experiments.
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