First, the process flow: grass-roots treatment → brick wall wetting → hanging vertical lines → pasting ash cakes → doing screed → plastering bottom cement mortar → plastering surface ash → plastering skirting line → quality inspection → finished product protection. Second, the operation requirements: 1, clean the base first, and spray the concrete base with pure cement slurry to make it easy to bond; Brick wall base should be watered and wetted in advance. 2. The mixing ratio of cement mortar for priming is: cement 1: sand 3: fly ash 0.5: lime paste 0.5. The surface layer is made of paper reinforcement and ash mixed with 10% white cement. 3. The mortar is mechanically stirred, and the feeding sequence is: first sand → lime paste → cement → finally fly ash. The stirring time shall not be less than120min. 4. Mortar should be stirred evenly, and the consistency of plastering mortar is generally 7- 10 cm. Cement mortar should be used up within 3 hours after mixing. 5, the factory date of more than three months of cement shall not be used. River sand should be sieved and stirred with clear water. Paper reinforced ash shall not contain caking (lumps). 6. When the bottom ash is 70% dry for the second time, the top ash can be brushed. If you wait until it is completely dry before wiping the lid, you need to water it one day in advance. 7. Before the ceiling plastering, the horizontal control line should be played around, and the ash cake and screed should be pasted, then the bottom ash should be wiped twice, and it should be leveled with a scraper. 8, beam bottom and beam side should stick ash cake, do screed. Make the beam bottom horizontal and the beam side vertical; The angle of yin and yang is square. Multi-span continuous beams should be nailed by tensioning steel wires. 9. All column corners, corner corners, door and window corners should be made into corner protectors: that is, the corner corners (corners) should be painted with pure cement mortar with a higher grade than the basic mortar. 10, the same wall foundation should be completed at one time. Avoid uneven seams on the same wall and inconsistent color of base mortar. 1 1, all horizontal planes should be horizontal; All facades shall be vertical; All the angles of yin and yang should be square. It is forbidden to produce cracks on the surface after drying. 12, fill the cracks between the top of the wall and the bottom of the beam. Before the formal priming, caulk, plug and compact with micro-expansive cement mortar to prevent cracks from appearing in the future.