Method for determining gypsum self-leveling safety construction thickness
A self-leveling and gypsum technology, applied in the field of determining the safe construction thickness of gypsum self-leveling, to achieve good economic benefits, moderate overall cost, and high construction efficiency
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Embodiment 1
[0030] At 20mm thick, the length and width are not less than 600mm, and the bulk density is 700±100kg / m 3 Brush the gypsum self-leveling supporting liquid interface agent twice on the cement foam board, and after the second coat is finished, the bulk density of the full pavement shall not be less than 130g / m 2 Fiberglass Mesh ( figure 1 ), seal the surrounding area of the foamed board, and pour 10mm thick C15 gypsum self-leveling, in the environment of 20±2℃ and relative humidity of 50±10% for 5 days, then carry out 5J impact resistance test, using 1020±10g circular The shaped steel ball is dropped from a height of 0.5m and hits three points in total. The distance between each test point is not less than 10cm, and the distance from each corner is also greater than 10cm. After passing the impact resistance test, construction was carried out in a sample room at a construction site of a residential building group in Nanjing developed by Times Real Estate according to the thick...
Embodiment 2
[0032] On the extruded polystyrene insulation board with a thickness of 20mm, a length and a width of not less than 600mm, and a compressive strength of not less than 200kPa, the polystyrene plastic film after 0.15mm ( figure 2 ), seal the insulation board around, and pour 40mm thick C15 gypsum self-leveling, in the environment of 20±2℃ and relative humidity of 50±10% for 20d, then carry out 5J impact resistance test, using 1020±10g round The steel ball is dropped from a height of 0.5m and hits three points in total. The distance between each test point is about 15cm, and the distance from each corner is also greater than 10cm ( Figure 4 (c)). After passing the impact resistance test, it has been promoted in the development of Chuzhou Country Garden apartment buildings. The construction of the model room is carried out according to the method of 40mm gypsum self-leveling ground system on 20mm thick extruded polystyrene board. After 5 days, the ground flatness and surface str...
Embodiment 3
[0034] On the floor heating module board with mushroom head, length and width not less than 600mm, embed the floor heating pipe on the floor heating module board, then seal the surrounding of the board, pour C15 gypsum self-leveling until it is 15mm higher than the highest point of the floor heating system ( image 3 ), maintained at 20±2°C for 15 days in an environment with a relative humidity of 50±10%, and then carried out a 5J impact resistance test. A round steel ball of 1020±10g was dropped from a height of 0.5m to impact three points in total. The distance between each test point is not less than 10cm, and the distance from each corner is also greater than 10cm ( Figure 4 (e)). After passing the impact resistance test, a residential building group developed in Chengdu Longfor carried out the construction of the model room according to the above method. This project is the floor heating method of the mushroom head floor heating module. The top of the floor heating pipe is...
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Abstract
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