This year, as the "Green Building Construction Year" determined by Shaanxi Province, the "Regulations on the Development of New Wall Materials in Shaanxi Province" (hereinafter referred to as the "Regulations") closely related to the green construction industry has received widespread attention from the local industry. When interviewed by the Ministry of Housing and Urban-Rural Development of Shaanxi Province on the 19th, the reporter learned that the "Regulations" for the community to solicit opinions have already ended in mid-May and is expected to be introduced within the year. By then, new wall materials will accelerate the construction of green energy-saving buildings.

It is understood that at present, more than 80% of the existing buildings in China are high energy-consuming buildings, and building energy consumption accounts for about 30% of the total energy consumption of the entire society. Shaanxi will launch a pilot demonstration of green buildings this year. Large-scale public buildings and office buildings financed by investment will be constructed in accordance with the concept of green buildings. The goal is that green buildings account for more than 5% of new buildings. To this end, Shaanxi Province has formulated the "Regulations for the Development of New Wall Materials" for the first time. It will follow the principles of technological innovation, resource conservation, energy conservation and environmental protection to develop new wall materials and encourage enterprises to use local coal gangue, fly ash, tailings slag, and plant stalks. , Solid waste and other raw materials for the production of new wall materials, and gradually realize the recycling of resources and clean production. The government agency offices, public buildings, affordable housing, demonstration buildings, and state-invested productive projects are required to adopt new wall materials.

The new wall material is non-clay solid brick wall material that contains not less than 30% of industrial waste residue, crop straw, construction waste, thermal insulation, energy conservation and environmental protection, light weight, high strength and industrial production. According to the list of new wall materials published by the State and Shaanxi Province, the new wall materials include autoclaved fly ash bricks, gypsum blocks, fly ash small hollow blocks, metal surface polystyrene sandwich panels and polyurethane sandwich panels , paper plasterboard, fiber reinforced calcium silicate board and so on.

“Xi'an, as the first batch of cities in the country that banned the use of clay solid bricks, has started early in the development of new wall materials. At present, new building materials have all adopted new wall materials, and technological development and practical applications are among the highest in the country.” China Building Materials Xi’an Wall Materials Research Xiao Hui, director of the Design Institute, told reporters.

The Office of Building Energy Conservation and Wall Materials Reform in Shaanxi Province was informed that the effectiveness of the promotion of new wall materials in the province during the “11th Five-Year Plan” period was significant, and the construction area for the application of new wall materials reached 128.97 million square meters, accounting for the total area of ​​the construction project. 95.75%, the production of new wall materials using industrial waste 850 million tons, respectively, than the "Tenth Five-Year" increased by 20% and 50.4%, the cumulative energy saving of 2.255 million tons of standard coal, carbon dioxide emissions 5,639,900 tons, 18,100 tons of sulfur dioxide. The Xi’an International Horticultural Exposition that is being held in the park has used a lot of energy-saving and environmental-friendly new materials, highlighting the “Green Leading Fashion” concept of the World Park. The administrative center of Xi’an was in the north of the project construction at the beginning of this year, and all construction projects use environmental protection. Energy-saving new wall material. While relying on local large-scale chemical, steel, and power companies, Weinan City has formed 15 new wall material production lines using desulphurized gypsum, fly ash, and coal gangue as raw materials. The annual use of industrial wastes such as phosphogypsum and fly ash 360 Ten thousand tons.

In the construction of local green buildings, Greenland Group, a leading national integrated real estate company, is also implementing a green and low-carbon strategy. “Building lightweight has become a development trend, and a large number of new wall materials are needed.” Hu Haibo, head of architectural design of the Group’s real estate northwest division, said that they are boldly adopting various advanced new materials in construction projects, such as the Xi’an International Horticultural Exposition. Greenland Eco-Technology Museum and Green Spaces? 牵 ? ? ? ? 褂昧 褂昧 褂昧 娲 静 静 静 馇 馇 馇 馇 馇 牧 mdash; - Wood-plastic plate, 80% of which are waste plastic and bamboo powder, with corrosion resistance , Do not fade, high hardness, strong plasticity, good thermal insulation; etc.; in Xi'an Houcun green space on the 9th bureaucratic wall tried to use a real stone paint coating, with color cement and imitation sandstone effect, reducing the amount of natural stone.

In accordance with the relevant standards for energy saving and thermal insulation of external walls of buildings in China, the flame retardancy of energy-saving and heat-insulating materials must be no lower than B2. In March this year, the Ministry of Public Security issued the “Notice on Further clarification of the Requirements concerning Fire Supervision and Management of External Thermal Insulation Materials for Civil Buildings”, which stipulates that the exterior wall thermal insulation materials of civil buildings use materials with a Class A (non-combustible) flame retardant property, and the building energy conservation and heat preservation standards. The threshold is suddenly raised.

Wang Baocai, secretary general of the Xi'an Wall Roofing Materials Industry Association, believes that it is generally difficult for construction units to reduce costs and to lower prices and use B1 (non-flammable) materials. It is obviously not enough to achieve Class A organic insulation materials. Use rock wool, glass fiber and other inorganic materials. However, Hu Haibo told reporters that due to the high water absorption of inorganic materials, complicated installation, and high cost, it is difficult to promote the market. They cooperated with related companies to develop a new type of exterior wall thermal insulation and decoration integrated composite material. That is, an inorganic material is wrapped on the outer layer of the polyurethane thermal insulation material, which can ensure that the flame retardant performance reaches above Class B1, and is easy to install, and the cost is not high. At present, this new material is undergoing fire detection at the National Fireproof Building Materials Quality Supervision and Inspection Center.

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A double layer roll forming machine can make designs which gives it another name dual layer roll forming machine, and because this machine can makes two different designs, and double deck roll forming machine is also a familiar name to people. (Similar machines are like two in one roll forming machine.)

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