Thermal insulation (material)
1, external wall insulation grid cloth
External wall thermal insulation grid cloth (glass fiber grid cloth) is a new type of alkali-resistant product, which is made of medium-alkali or alkali-free glass fiber mesh yarn, woven glass fiber grid cloth as the base material, coated with acrylic polymer solution and dried. The product has the characteristics of stable structure, high strength, alkali resistance, corrosion resistance and good crack resistance, and has the best reinforcement effect and simple construction.
It is mainly suitable for the reinforcement and crack prevention of internal and external surfaces of cement, gypsum, walls, buildings and other structures, and is a new building material for external wall insulation engineering.
2. Phenolic resin foam material
Phenolic foam material is a kind of polymer organic hard aluminum foil foam product, which is formed by foaming thermosetting phenolic resin. It is light, fireproof, non-flammable, smokeless, non-toxic and non-dripping, and does not shrink or embrittle in a wide temperature range (-196 ~+200℃). It is an ideal heat insulation material for HVAC and refrigeration engineering.
Phenolic foam has high closed cell rate, low thermal conductivity, good thermal insulation performance, water resistance and water vapor permeability, and is an ideal thermal insulation and energy-saving material. Phenolic aldehyde has a benzene ring structure, so its size is stable, and its change rate is
3. Foamed cement insulation material
The foaming agent is fully foamed mechanically through the foaming system of the foaming machine, and the foam is evenly mixed with the cement slurry, and then cast-in-situ construction or mold forming is carried out through the pumping system of the foaming machine, and a new lightweight thermal insulation refractory with a large number of closed pores is formed through natural curing. It belongs to bubble-like thermal insulation material, and its outstanding feature is that closed foam holes are formed in concrete, which makes the concrete light and warm.
Extended data
Construction requirements for external insulation of external wall
1. After the construction acceptance of external walls and doors and windows is completed, the base surface meets the requirements of the multi-layer formwork in Section III of Chapter V "Concrete Engineering" or Section I of Chapter VI "Masonry Engineering" in the Standard for Quality Inspection and Evaluation of Building Engineering (GBT30 1-88).
2. The ambient temperature for normal construction of external wall insulation system is 5℃~35℃.
3, the construction site should have roads, water, electricity.
4. The erection tools and scaffolding used for construction shall meet the construction needs (safe and reliable).
5. Mobile distribution boxes and water pipes for construction should be configured according to the construction needs.
6. The vertical and horizontal transportation facilities of distribution materials shall comply with relevant safety regulations.
7. The distance between the high-voltage wires in the construction environment and the construction site shall comply with relevant regulations, and there shall be corresponding protective facilities.
8. Remove all obstacles on the wall to be insulated.
9, paste insulation board when the wind can't exceed 5.
10, in order to ensure the construction quality, the construction surface should avoid long-term direct sunlight. Note: it is not suitable for construction in rainy days.