This paper introduces the HS-ICF thermal insulation and load-bearing integrated composite wall with the EPS block as the thermal insulation module, which is connected by the plastic connecting bridge and then lapped into the hollow wall and poured the self-compacting concrete as the load-bearing structure.
HS-ICF composite wall; HS-EPS module; load-bearing insulation integration table 1HS-ICF system structure outer insulation layer A insulation layer structure legend protection layer outer wall surface layer insulation layer protection M interior wall layer concrete concrete block insulationé…Ž alkali glass fiber mesh reinforced 祢 祢 祢 槿 槿 槿 槿 槿 槿 ä¿ ä¿ ä¿ æ§¿ 槿 槿 槿 槿 槿 槿 槿 槿 槿 I I I I I I I I I I I I I I I ç›®å‰ ç›®å‰ ç›®å‰ ç›®å‰ ç›®å‰ ç›®å‰ ç›®å‰ ç›®å‰ ç›®å‰ ç›®å‰The main materials are clay hollow bricks, small concrete load-bearing hollow blocks, frame structure hollow block filling walls, etc. The formwork is generally made of cast-in-place reinforced concrete solid plates. With the gradual upgrading of the country's energy-saving requirements for buildings, solid clay bricks, load-bearing hollow blocks, and frame-structured hollow block-filled walls are all difficult to meet energy-saving standards. As a result, a composite wall of a certain strength and thickness EPS (styrofoam) insulation board is attached to the outer wall surface. Since the EPS insulation board and the wall are pasted into the cavity, the bonding area is only about 30%, resulting in nearly 70% of the cavity between the EPS board and the outer surface of the wall. These cavities not only affect the insulation effect, but also cause the insulation board to fall off and the wall corrosion after entering the water or generating water vapor, which seriously affects the durability of the house.
In various wall insulation technology systems, HS-ICF (InsulationConcreteForm) insulation composite wall technology is unique, and its stereotyped products have been mass-produced and obtained national patent rights. The system combines the thermal insulation formwork and concrete into a composite wall to jointly bear the functions of load bearing, heat preservation, heat insulation and sound insulation. The wall load-bearing structure is firm, reliable and has good seismic performance. It has been tested by Harbin Institute of Technology Testing Center and reached 65. More than 100% of building energy efficiency standards.
The HS-ICF thermal insulation composite wall system adopts EPS block as the thermal insulation module, and the modules are reliably connected into the formwork by plastic connecting bridges. The formwork is lapped into a hollow wall between the templates, and the wall is poured in the middle of the wall to prevent vibration and self-compacting concrete. . In the module and concrete, the steel bars can be conveniently arranged according to the needs, forming the HS-ICF system EPS insulation module-shear wall bearing composite wall. The surface of the wall is reinforced with alkali-resistant glass fiber mesh cloth and protected by polymer mortar. The wall structure is shown in Table 1. The system can ensure the bonding performance of the insulation layer, effectively solve the thermal bridge problem and maintain good thermal insulation performance. Economic and social benefits are significant.
HS-EPS module structure introduction HS-EPS wall module, the inner and outer surfaces are provided with dovetail slots according to the modulus. The module has grooves and convex grooves on the upper and lower sides, and can be divided into 60mm thick outside the wall and 40mm thick inside the wall. The shape is divided into rectangular, L-shaped, long, and the height is 180mm, 250mm, 300mm and other different specifications, as shown.
The connecting bridge fixing members can be freely combined into the inner and outer detachable templates of shear walls of different thicknesses as shown.
EPS template HS-EPS wall horizontal block field 2 with connecting bridge fixings freely composed of different thickness of shear wall inside and outside the free-form template HS-EPS floor module, the upper and lower surfaces are provided with dovetail grooves and grooves, with through holes in the middle Grooves and grooves are provided on the left and right sides, and reinforcing bars are arranged on the rib beams, and the floor modules are combined by the C-shaped steel into the length required by the design. The reinforced concrete is cast on the concrete to form a composite slab, as shown.
4HS-ICF system structure The combination of shear wall structure system and EPS module insulation, heat insulation and sound insulation technology not only achieves the heat preservation, heat insulation and energy saving effects, but also meets the structural stress requirements and has good seismic performance.
The EPS module is combined into a form of no-removal template, so that the concrete and the EPS module dovetail slot mechanically engage and securely combine together, which is safe and reliable, and prevents the insulation layer and the structural body layer from falling off.
5HS-ICF building features (1) Shear wall load-bearing structure is strong and reliable HS-ICF system EPS module load-bearing wall adopts cast-in-place concrete shear wall structure, which has strong integrity, good earthquake resistance, strong and reliable load-bearing structure and good durability.
Excellent thermal insulation and sound insulation performance. Both the inside and outside of the wall are insulated with HS-EPS module. The heat transfer coefficient is 0.41W/(m2K), and the energy saving effect can meet the standard requirement of energy saving of 65%.
The separate household wall and most of the indoor insulation in the household insulation and insulation house adopts the HS-ICF system EPS module wall. Each household and each room has independent thermal insulation function to prevent energy loss and energy reduction. Consumption, this is not comparable to the simple external insulation system.
The thickness of the wall is 260mm, there is no beam and no column in the room, and the living area is increased by 3%~5%. The ICF system of the building height is controlled by the concrete shear wall. The thickness of the concrete shear wall can be adjusted according to the design layer and height. For multi-storey residential buildings or office buildings below 21m, the thickness of the concrete shear wall is 15cm 20cm. The amount of steel bars is generally set according to the requirements.
The system adopts the building module block type connection. The module is not only the insulation layer but also the one-time permanent template. The wall uses the mechanized concrete pump, and the vibration-free self-compacting concrete is poured to fill the space inside the module. The main structure is constructed at the same time into a whole thermal insulation, and the building speed is extremely fast. Compared with the traditional construction method, the wall work efficiency is improved by 34 times, and the construction period can be saved by 50%. The line pipe can be easily placed into the EPS template. Inside, there is less construction waste, and the EPS module weighs about 2kg per piece, which is convenient for construction. When the workers were working on the wall, they were replaced by a concrete formwork and a combination of wall modules. After the concrete is put into the mold, the EPS board and the concrete are firmly combined, which is safe and eliminates the phenomenon that the insulation layer falls off and cracks.
The comprehensive cost of housing is lower than other structural systems. Because the wall of HS-ICF building system has the advantages of weight bearing, heat preservation and heat insulation integration, light weight and easy construction, its construction cost is far lower than that of other structural forms. At present, the commonly used 370mm thick solid clay brick wall is attached to the EPS board, and its superiority is self-evident.
Houses built with low cost of housing, energy-saving and environmental protection with HS-ICF energy-saving system, due to energy saving of more than 65%, the cost of use is reduced, the annual heating cost can be saved by 70%, and the standard area per square meter of building area is saved by 003t. According to this standard Harbin builds about 7 million m2 of houses every year. If this system is used, it can save 210,000 tons of standard coal, effectively reducing air pollution.
At the same time, the raw materials of the system use cement, gravel, sand, steel, Sino-US sustainable development demonstration village pilot project, Huangbaiyu Village, 42 ecological environmental protection and energy-saving housing completion. This is the Sino-US sustainable development demonstration village pilot project Huang Baiyu sustainable development The 42 eco-friendly houses in the first phase of the demonstration village were completed. The 42 eco-friendly residential walls are not made of clay bricks, the two model houses are made of WITTMANN bricks and grass bricks, the other 40 are made of concrete small hollow blocks and grass bricks; the residential yard walls are made of concrete small hollow blocks. Building; energy is concentratedly supplied by straw gas stations, all of which use straw gasification gas for the supply of straw gas. The assessment team of Tongji University evaluated the residential structure performance, energy supply system, and indoor thermal environment of residential buildings in the demonstration villages. It considered that the residential buildings saved more than 60% of the heating energy consumption than ordinary brick houses.
Huangbaiyu Village is located in Sishanling Manchu Township, Benxi City, in the eastern part of Liaoning Province, where the mountains and rivers are undulating and beautiful. It belongs to Jiushan Half-water and Half-field. The total area of ​​the village is 33,643 mu, the forest land is 28,300 mu, and the farmland area is 4,791 mu, including 1380 mu of cultivated land. A total of 413 households, 1,409 Han and Manchu villagers live here. Huang Baiyu was selected as the world's first sustainable development model village and was selected by the China-US Joint Council for Sustainable Development. The demonstration project follows the design concept from cradle to cradle, pays attention to the harmonious development of people and nature, and pays attention to the sustainable use of ecological resources. The whole village construction package occupies the construction of environmentally-friendly and energy-saving grass brick house residential quarters, and the villagers change from scattered residence to successive Move into residential areas; build straw gasification stations, improve energy structure; renovate existing primary school buildings, improve their functions; build facility-equipped medical stations, improve medical conditions; build information network, broadband network connected to each Households; construction of water supply and drainage systems, scientific treatment of sewage; construction of farming and breeding communities, environmental protection enterprises, resettlement of villagers' employment, etc. After the completion of the sustainable development demonstration village project, 2,252 mu of cultivated land can be arranged, of which 722 mu of land can be relocated. The field wasteland can be reclaimed and the existing cultivated land is expanded to 700 mu, and the existing cultivated land is 830 mu.
The first phase of Huangbaiyu Sustainable Development Demonstration Village was funded by the director of the village committee and the general manager of Liaoning Jinliangchun Liquor Industry Co., Ltd. Dai Xiaolong to raise 3 million yuan. It is reported that the construction project of the villager residential quarters of the demonstration project is 100 sets in 2006, 150 sets in 2007, and 2008 (Zhang Shaoxian Liang Fuhong Su Liping) and other building materials, without the use of a clay brick to protect the land resources. EPS corner scraps during construction can be recycled, greatly reducing construction waste on the construction site.
The architectural design of the HS-ICF has different shapes of modules. It can be adjusted and combined according to the design requirements of the building profiles. It is easy to process on site and provides sufficient space for the architect's design creation. According to the heat transfer coefficient required by the area where the building is located, the thickness of the EPS module of the HS-ICF system can be arbitrarily selected.
6 Summary The main purpose and application scope of the HS-ICF system is to build apartments, office buildings, villas, schools, hospitals, shopping malls, factories, warehouses, indoor swimming pools, cold storages, etc., which can meet the construction market and various investors and individuals. Kind of demand.
The HS-ICF system breaks the concept of internal and external thermal insulation of the external wall, and integrates thermal insulation and building structure bearing wall construction. Promoting this building energy-saving system will generate huge social and economic benefits (a basic production line with an annual output of 2 million m2 module scale, which can reach an annual output value of RMB 100 million, a profit and tax of 20 million yuan, and can solve 100 employed persons) Reduce the cost of using the house and promote the development of related products and industries. The system has now developed specific technical procedures to ensure quality in construction applications.
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