1:B Article ID: 1005 The traditional West Gable in the southern region uses a double-wall or double-wall sandwich to insulate the air layer. This is a very effective external wall insulation system. In recent years, China's external wall thermal insulation projects are mainly based on polystyrene (EPS or XPS) thin plaster external insulation system. Compared with the traditional external wall insulation method, the polyphenyl board thin plaster external wall insulation system has the advantage of reducing the thickness of the insulation layer. The thermal insulation effect of 30mm thick expanded polystyrene board is equivalent to 140mm thick aerated concrete block, 350mm thick clay hollow brick, 520mm thick concrete hollow block, and 1100mm thick concrete wall. Therefore, since the invention of Germany after the end of World War II, the system has been widely used in Europe and the United States, especially in regions with a cold climate. However, North America introduced the system at 0 inches in the 1960s. The system was modified based on North American architectural features (mostly wood-framed houses) and architectural styles to form the North American system. The current system in China is the European system. This kind of polyphenol board and thin plaster external wall insulation system with cold weather and thermal insulation as its main goal is suitable for summer heat insulation and summer heat and cold winter, which are mainly for the purpose of heat insulation in winter. The doubts. This is also the main reason why the system has not been able to get a large-scale promotion like the North in this climate region. In hot summer and cold winter areas, according to the provisions of Article 3.1.1 of China's "Code for Design of Thermal Design for Civil Buildings" (GB50176-93), it is necessary to meet the requirements for heat protection in summer and appropriately consider winter insulation. At the same time, the climate is hot in the hot summer and cold winter regions, and the annual average relative humidity of the air is above 80%. During the spring and early summer, there are prolonged periods of low temperature, rain, and indoor condensation, and the activities of termites are also relatively unclear. This climatic characteristic makes the exterior wall of the building in the area must have the date of collection: 2007 - features of protection against heat, rain, moisture and ant.
1 Analysis of Thermal Performance of Exterior Walls of Buildings in Hot Summer and Cold Winter 1.1 Analysis of Thermal Performance of Masonry Mortar f According to "Design Standard of Energy-efficiency for Residential Buildings in Hunan Province" (DBJ43/001 R - External Wall Thermal Resistance, m2 in a Heat Conduction Coefficient, WAm.K).
For the 240mm thick wall, the thermal conductivity A should be the target value of the thermal conductivity of the painting thermal insulation mortar for this project. 2 Cenospheres Inorganic insulation External wall coating mortar Research and development Based on the thermal performance analysis of external walls, we researched and developed summer. Hot and cold areas Cenospheres Inorganic insulation External wall plastering mortar, used for external and internal thermal insulation of external walls, the same with the traditional plastering process, construction is simple, mortar strength is high, to solve the external wall insulation mortar on the tiles .
2. Hollow microbeads inorganic thermal insulation mortar system construction root Opera building exterior decorative layer different, hollow microbead inorganic thermal insulation mortar external insulation system has two basic structures, such as Table 3, 4. Table 3 coating finishes External Inorganic Thermal Insulation Mortar (Inside and Outer Insulation) System Basic Structure Base Layer Wall Coating Finish Cenospheres Inorganic Exterior Wall Insulation Mortar System Basic Structure Interface Layer Insulation Layer Finish Layer Concrete Wall and Name Type Masonry Wall Interface Mortar (used in concrete Base layer) Inorganic Thermal Insulation Mortar Polymer Elastomer Underlayer Coating + Flexible Water-Repellent Putty + Coating Table 4 Facing Tile Hollow Beads Inorganic External Wall Insulation Mortar System Basic Structure Base Layer Wall Tile Finish Polymer Cement Inorganic Insulation Aggregate Wall insulation mortar system Basic structure Interface layer Heat preservation layer Finishing layer Concrete wall and name species Masonry wall Interface mortar (used on concrete base layer) Hollow microspheres Inorganic exterior wall insulation mortar Anti-cracking mortar + Alkali resistant fiberglass mesh + Adhesive Mortar + tile + sealing material (internal insulation without cracking mortar + alkali resistant glass fiber mesh) can be seen from Table 1, 2: (1) In addition to the reinforced concrete wall, the rest of the wall are only Inside and outside the paint; V 2: B Article ID :1005-8249 (2008) 01―0037―03 pyrite slag ceramics is based on pyrite slag as the main raw material, adding appropriate amount of high carbon fly ash, adhesive materials and fuel After the ingredients into the ball, sintered. After the product is used in concrete, it can not only produce good workability and bond with the cementitious material, but also has good heat insulation and heat preservation effect. And because of the high strength of the ceramsite itself, it can be used not only for the production of lightweight insulating blocks, sand-free large-pore ceramsite concrete, plain concrete and low- and medium-strength lightweight concrete, but also for the production of high-strength concrete.
1 Raw materials 1. The pyrite slag was selected from the pyrite slag of Baotou First Chemical Plant. The physical properties are shown in Table 1. The chemical composition is shown in Table 2. The effect of susceptibility, and it can reduce the water absorption of the glass beads. It consists of activators, air-entraining agents and water-soluble polymers.)
Table 5 Glassy Beads Performance Index Bulk Density Cylindrical Press Strength Thermal Conductivity Volume Surface Vitrification Floatation Rate/% Closed Porosity/% Hollow Beads Technical Performance of Inorganic External Wall Plastering Mortar Hollow Beads External Insulation of External Wall Plaster Mortar Performance See Table Item Unit Index Dry Apparent Density Thermal Conductivity Heat Storage Coefficient Compression Strength Compression Shear Bond Strength Linear Shrinkage Rate Water Absorption Softening Coefficient Combustion Performance Level Internal Irradiation Index IRa Radioactive External Irradiance Index Ir Level A Table 6 Hollow Beads Inorganic External wall insulation mortar performance indicators can be seen from Table 6, the external wall self-insulating mortar has a small thermal conductivity, high compressive strength, heat storage coefficient, shrinkage deformation, bonding strength advantages, is a good Thermal insulation material in hot summer and cold winter area, can be used for exterior wall decoration system of tile decoration, 3 hollow micro beads inorganic exterior wall insulation mortar application hollow bead inorganic exterior wall insulation mortar construction simple construction is simple, construction will Bag dry mortar powder is poured into a mortar mixer, and a suitable proportion of water is added to the consistency that can be applied. Plaster insulation mortar can be used for ordinary exterior concrete blocks, ordinary concrete hollow bricks, lightweight aggregate (ceramsite) concrete blocks, lightweight aggregate (ceramsite) concrete perforated bricks and aerated concrete blocks, etc. .
4 Conclusion In the hot summer and cold winter areas, thermal insulation mortar and existing wall materials can be used to form a wall self-insulating system. The system meets the requirements of energy-saving standards and has good performance in use. It can effectively solve the problem of the security of the external wall of the external insulation system.
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