Guidelines for hardbound construction of construction projects Floor cushion 1. Pre-embedding and acceptance of professional pipelines in ground cushion before construction of indoor floor fine stone concrete cushion are qualified. Pressure test is qualified, and pressure operation is required during construction of cushion. 2. A 500 mm horizontal control line pops up on the wall and pulls the line horizontally to make ashes.For ground heating, the thickness of fine stone concrete on pipe shall not be less than 30 mm, and it meets the design requirements. 3. All raw materials for ground cushion construction are qualified in the test and conform to the design requirements and relevant specifications and standards. 4. Before the ground cushion is poured, corresponding protective measures must be taken for the pipelines in the ground, and the pouring sequence should be reasonably formulated to avoid damage during construction. 5. Ground cushion pouring, mixing fine stone concrete paving on the base, scraping with 2m scraper, then rolling with drum to and fro, vertical and horizontal, if there are concave areas filled with concrete, then scraping with scraper once, rubbing with wooden plaster, and then evenly spraying a layer of cement sand dry ash surface (1:1 = cement: sand), to be absorbed water, then scraping rubbing with wooden plaster. with 2m scraper, 6. After finishing, when the mortar of the surface layer first solidifies and the footprint sheet does not sink on the ground, polish it with iron plaster and sweep the surface with plastic sweep, requiring the same sweep texture direction. 7. Around the room in a wide range of 100 mm with iron plaster line to find straight calendering. 8. Maintenance: After 24 hours of plastering, sprinkle water in time. The number of times of watering is based on the wetness of maintenance time is 7 days. the surface, and the 9. Permissible Deviation of Ground Quality of Fine Stone Concrete Buildings: Allowable project Test method deviation (mm) Surface Use 2m ruler and 3 smoothness wedge ruler Stitching Inspection of 53 straight meter line gauge The top of the Inspection of 5kickboard is 3 meter line gauge straight.