Construction technology of external wall insulation of a high-rise building
1, elastic control line: according to the technical requirements of building facade design and external wall insulation, horizontal and vertical control lines, expansion lines, decorative joints, etc. of external wall doors and windows. All appear on the wall.
2. Hanging datum line: Hanging vertical datum steel wire at necessary places such as large corners (yin and yang corners) on the external walls of buildings, and hanging horizontal lines at appropriate positions on each floor to control the verticality and flatness of polystyrene board.
3. Preparation of special adhesive: (1) Prepare according to the proportion provided in the instruction manual of special adhesive, with special personnel in charge, strictly measure and mechanically stir to ensure uniform mixing. ⑵ The mixed adhesive can only be used after standing for 5 minutes. (3) The adhesive must be mixed with it, and the mixed adhesive should be used up within1h..
4. Pre-adhesive folding grid cloth: all exposed places (such as expansion joints, doors and windows, etc.) on the side of polystyrene board should be folded with grid cloth.
Two high-rise building external wall insulation construction preparation:
1, material preparation: (1), polystyrene foam plastic board; (2) special adhesive; (3) One-component polymer mortar; (4), alkali-resistant glass fiber grid cloth; 5], plastic expansion bolt; [6], polystyrene foam stick; Once, water.
2. Tool preparation: (1), wire cutter or wallpaper knife; (2) hand saw; (3) Mo Dou; (4), 2m by foot; 5], ruler; [6], wood square; Once, tape measure; Electric agitator; Levies, trowels; ⑽, Yin and Yang Angle; ⑾, plastic mixing barrel; ⑿, coarse sandpaper. [13] 2m traction plate
3. Technical preparation: (1) Draw the block diagram and nail distribution diagram according to the specific conditions of the construction wall. 2. Prepare the construction disclosure according to the construction drawing and block diagram.
Code for acceptance of external wall insulation of three high-rise buildings
The insulation thickness of residential energy-saving insulation roof should not be less than 2.5 cm, and polystyrene insulation board should be used. External wall insulation can be divided into internal wall insulation and external wall insulation. Generally, external wall insulation should be adopted, because it can protect the main structure, make the external wall structure layer in a relatively stable room temperature state, avoid the cold and hot changes of the structure layer, eliminate temperature cracks to a great extent and prolong its service life.
Polyurethane foam construction is generally used for external wall insulation, which is practical and has a longer service life than other insulation materials. Under normal use and maintenance conditions, the service life of external wall thermal insulation engineering should be no less than 25 years.
The above is the construction-related knowledge collected by Zhong Da Consulting for architects about the "Construction Scheme for External Wall Insulation of High-rise Buildings". For more information, please visit the Zhong Da Consulting Architecture and Design link.
For more exclusive information about the construction industry, please pay attention to Zhong Da Consulting Micro Signal in real time.
src="/#/？ source=bdzd