Definition of Green Building Materials: refers to the use of clean production technology, the use of energy resources with less natural resources, the use of industrial or urban solid waste to produce non-toxic, non-polluting, and beneficial to human health building materials. It is a kind of health, environmental protection and safety (fire-fighting) building materials that are harmless to the human body and the surrounding environment. It is a branch concept of the “green product†concept. It is also called ecological building matricals and health in the world. Healthy Building materials and RQ cyclic Building materials.
In 1992, the international academic community clearly proposed the definition of green materials: green materials are materials that are minimally loaded on the earth's environment and beneficial to human health, including raw material adoption, product manufacturing, use or recycling, and waste disposal. It is "environmental reconciliation material". Green building materials are a big category of green materials.
Broadly speaking, green building materials are not individual building materials, but the evaluation of the attributes of “health, environmental protection and safety†of building materials, including the five major links of production raw materials, production process, construction process, use process and waste disposal. Evaluation and comprehensive evaluation.
In addition to being the basic practicality of building materials, the basic functions of green building materials are to maintain human health and protect the environment. The basic characteristics of green building materials Compared with traditional building materials, green building materials can be summarized as follows:
1 The raw materials used in its production use as little natural resources as possible, and use a large amount of waste such as tailings, waste residue, garbage, and waste liquid.
2 Adopt low-energy manufacturing process and production technology that does not pollute the environment.
3 In the process of product preparation or production, do not use formaldehyde, halide solvent or aromatic hydrocarbon products, do not contain mercury and its compounds, and do not use pigments and additives containing lead, fusible, chromium and their compounds.
4 The design of the product is to improve the living environment and improve the quality of the raw, that is, the product not only does not harm the human health, but also beneficial to human health, the product has multi-functional, such as antibacterial, sterilization, anti-fog, deodorization, Insulation, flame retardant, fireproof, temperature regulation, temperature adjustment, noise reduction, degaussing, anti-ray, anti-static, etc.
5 Products can be recycled or recycled for recycling, pollution-free environment.
The development status of green buildings in China:
1 The awareness of environmental protection in the whole society is constantly increasing. Creating green buildings and healthy houses is becoming the goal pursued by more and more developers and architects. People have paid attention not only to the quality of individual buildings, but also to the environment of the community. They not only pay attention to structural safety, but also pay attention to the quality of indoor air. They not only pay attention to the material durability and low price, but also the impact of material consumption on the environment and energy. At the same time, the user's awareness of self-protection is also increasing. Today, in addition to the increasing attention to potential hazards in gas, electrical appliances, and housing structures, people's awareness of some chronic health hazards is also growing. People have realized that “green†is closely related to us.
2 Developed and produced a batch of “green building materialsâ€. Through the introduction, digestion and reference, we have developed environmentally friendly and healthy wallpapers, paints, carpets, laminate flooring, pipe fiber reinforced plasterboard and other decorative building materials, such as "Moldproof Wallpaper" is a revolutionary change in wallpaper. "Plastic metal composite pipe" is a high-tech product that replaced metal pipes in the early 1990s. The inner and outer layers are high-density polyethylene, the middle layer is aluminum, and the plastic and metal aluminum are two layers of glue. The excellent performance of plastics and metals, it has the advantage of not rusting, and does not make the water quality contaminated. At present, it has been successfully developed in China. In addition to the simple construction of latex paint decoration materials, all kinds of beautiful colors bring a colorful color to the home environment. There is no pollution in the environmental protection, and the mountains are bursting with fragrance after painting. When the wall is old. It can also be brushed or cleaned with a cleaning agent, while at the same time suppressing mold emission in the wall. At present, this kind of green material has a great potential to replace wallpaper. The development of environmental protection materials for gypsum board decoration has a great potential in recent years. Through technological research, it has developed a kind of mildew in the coastal wet tropical climate. Ask the gypsum board that is not deformed on the leaking board to decorate the environmentally friendly materials, thus creating a new situation in the hotel and home decoration.
3 Emphasis on environmental issues during the construction process. At present, the main environmental factors in the construction industry include noise emissions, dust emissions (dust), evacuation of transportation, waste of construction waste, leakage of paint, paint and chemicals, consumption of resources and energy such as consumption of production, living, and electricity. During the decoration process, the discharge of toluene and formaldehyde in paints, paints, glues and rubber-containing materials caused by complaints was caused. Some companies have passed the 150l400l environmental management standard certification.
4 The competent departments of the governments at all levels shall force the elimination of outdated products and processes in due course. The Notice of the Ministry of Construction, the State Economic and Trade Commission, the Quality and Technical Supervision Bureau, and the State Building Materials Bureau jointly issued the "Notice on the Elimination of Outdated Products in Housing Construction" (Building Housing [1999] No. 295), from June 1, 2000 From the new residential buildings, the sand casting cast iron drainage pipes will be eliminated, and the flexible polyethylene (UPVC) plastic pipe and the flexible pipe conforming to the 'diffuse soft interface' cast iron pipe and fittings> (GB/T2772-l999) will be promoted. Interface mechanism cast iron drain pipe. It is forbidden to use cold-galvanized steel pipes and promote the application of aluminum-plastic composite camps and cross-linked polyethylene pipes. Simultaneously. It is forbidden to use solid clay bricks in a time-limited manner, actively promote the use of new building structure systems and match them with new wall materials and recommend the use of environmentally friendly products that are harmless, non-radiative and non-polluting.
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