国产a一级视频播放_日韩国产一级毛片_都市激情 在线 亚洲 国产_泰洋川禾香蕉视频小黄片_成人快色视频在线观看_给我脱腿张开抽插_蜜臀av网站在线_亚洲无码不卡宅男_亚洲欧美综合中文字幕另类免费最新国产_无码日韩手机观看网站

There is a difference between insulation structure and fire protection structure. The two structures form a complete insulation system, but their respective functions are different. The insulation structure is mainly composed of insulation materials, consisting of a bonding layer, insulation layer, and external protective layer (or decorative layer), and has integrity; Fireproof structure refers to the parts of the insulation system that have fireproof performance, such as fireproof isolation belts, fireproof eaves, fireproof partitions, etc., which have diversity. When selecting an insulation system, the first step is to determine what insulation structure it is, and then analyze the rationality and effectiveness of its fire protection structure.

Furthermore, insulation structures composed of different insulation materials have different fire resistance properties. Thermal insulation structures are divided into fire-resistant and non fire-resistant types. Large fire tests and foreign application experience have proved that the complete thermal insulation structure composed of thermosetting organic foam above B2 level will not expand the fire, and it is a fireproof building material; The thermal insulation structure composed of thermoplastic organic foam has the risk of expanding fire and belongs to non fireproof building materials. At present, B2 thermosetting organic foam is widely used in building energy conservation projects in developed countries in Europe and the United States, and B1 thermoplastic organic foam is moderately used.

To sum up, different organic foam have different fire performance, and the existing organic foam in China can completely meet the fire resistance requirements. Among them, thermosetting organic foam only needs to improve the level of puffed carbon deposit flame retardant technology to make its flame retardancy above B2 level, and then it can have good fire resistance; Thermoplastic organic foam with flame retardant grade above B1 has good fire resistance.

The installation depth of the insulation board anchor into the structural wall shall not be less than 25mm. Use a Φ 8X120mm anchor bolt for anchoring, and drill holes with a diameter of 10mm on the exterior wall using an electric hammer; The hole depth is 120-130mm (including the thickness of the insulation board), and the plastic expansion bolt is installed and firmly secured to tightly bond the glass wool board with the outer wall surface. After the anchoring point is tightened, it should be 1-2mm lower than the surface of the glass wool board. The arrangement of anchor points: Anchor points are set at the four corners of the glass wool board and in the middle of the horizontal seam. The installation of anchor bolts should have a longitudinal spacing of 300mm and a transverse spacing of 400mm, arranged in a plum blossom pattern. The spacing should be increased to 200mm at the corners of the base wall, and meet the requirements of the design and relevant standards.

Thermal insulation materials can collect excess heat, release it smoothly and timely, with small gradient changes, effectively reducing losses, and can balance room temperature and winter insulation. Overcoming inherent deficiencies such as wall cracks, condensation, mold, and peeling in the decoration of new and old buildings; And it is safe and reliable to bond with the substrate as a whole, with good flexibility and no cavities, avoiding tearing and detachment under negative wind pressure. Effectively overcome problems such as rib and corner outward warping deformation and brick detachment after panel splicing. Organic compounds in the material react with free acids present in the main wall substrate to form compounds that penetrate into the micropores of the main wall, forming a community that ensures dry adhesion and improves wet adhesion retention, resulting in excellent adhesion. By selecting raw materials such as floating beads and brucite fibers (tubular fibers), a closed hydrophobic microporous cavity structure is formed in the structure, which serves as a carrier for phase change materials and ensures their long-term practicality.