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1、节能新材料新结构（The structure of the new energy and new materials）Abstract: energy saving, new materials and new technologies play an important role in saving energy, easing energy crisis, improving peoples quality of life and improving the quality of the environment. In this paper, the concept and range o
2、f energy saving new materials and new technologies are analyzed, and the application of specific energy saving technology in construction engineering is discussed.Key words: building engineering; energy saving technology; technical applicationEnergy saving new materials and new technologies are acco
3、mpanied by the international energy crisis. In addition, from the current situation of Chinas construction industry development, the application of energy-saving materials and new technologies is also very necessary. In recent years, Chinas construction industry has developed rapidly, but this devel
4、opment is based on high energy consumption. Survey data show that Chinas construction industry is currently at an average annual rate of 2 billion square meters in the development, but at the same time, construction energy consumption has accounted for 27.5% of the social terminal energy consumption
5、. And from the development of energy-saving new materials, new technologies, both from the product composition, or from the overall level of technology or quality, and developed countries have a big gap. When the domestic are discussing how to improve the building energy efficiency ratio, has been c
6、onsidering how to reduce carbon dioxide emissions, to reduce the greenhouse effect, when the domestic research is discussing such materials at the same time, foreign countries have studied how such material is extended to the whole world.First, energy-saving new materials and new technologiesTo redu
7、ce building energy consumption must be considered in building energy conservation, we mentioned here refers to the building energy saving, in order to meet the peoples normal life, work and learning needs of the premise, in the construction planning, architectural design, production and use of build
8、ing materials, construction equipment selection and construction and use of buildings and production process, to reduce the energy consumption of buildings the purpose of using new materials and new technology.Reasonable design of building envelope thermal performance, improve heating, refrigeration
9、, lighting, ventilation, drainage and pipeline system operating efficiency, reduce energy consumption, renewable energy utilization is reasonable, scientific and effective, so as to improve building comfort and energy conservation purposes. In short, it means using as little energy as possible to li
10、ve as comfortably as possible. Generally speaking, such new material is a new type of building material is different from the traditional brick and gray material, its variety is very rich. From the function, can be divided into wall materials, decoration materials, doors and windows materials, heat
11、insulating materials and supporting hardware, plastic parts and various auxiliary materials; from the material point of view, it can be divided into natural materials, chemical materials, metal and non-metal materials etc.The application of energy saving new materials and new technologies is of grea
12、t significance in easing energy crisis, improving environmental quality and improving peoples living standard. First of all, the development and utilization of energy-saving new materials and new technologies can ease the tense situation of energy. Secondly, replacing the traditional bricks and sand
13、 materials with energy-saving new materials can reduce the waste of land resources and the emission of carbon dioxide and acidic gases. On the one hand, air pollution can be alleviated and air quality can be improved. Thirdly, with the continuous improvement of Chinas modernization drive, people are
14、 increasingly demanding the quality of the environment. Healthy and comfortable environment has become the need of peoples life.Two. Application of energy saving new material in Construction Engineering1, new energy-saving wallThere are many kinds of new wall materials. From the current application
15、situation, the proportion of new wall materials in wall materials is gradually increasing. The new wall materials mainly include brick, block, board, three major categories, such as clay hollow bricks, waste clay bricks, non clay bricks, building blocks, aerated concrete, light plates, composite pan
16、els and so on. Judging from the current development of the construction industry, it is necessary to develop new energy saving walls according to local conditions and local conditions, so as to achieve the goal of energy saving and environmental protection by changing the structure of wall materials
17、. In this regard, the development of European and American countries is worth learning. Brick production in Europe and America has now stabilized,And it develops towards large porosity and thin wall in technology. All kinds of new building materials have a relatively good development in Europe and t
18、he United States, such as concrete small hollow block is mainly towards the decoration, light and heat insulation in the direction of development, which is toward lightweight aerated concrete and high hardness in the direction of development. In addition, the bulk density of foreign aerated concrete
19、 is generally 400 - 500kg / m3, the weight of non bearing products is reduced to 300kg / m3, and the raw materials are widely used industrial waste residue. In addition, some other new materials, such as STP thermal insulation board and fly ash brick, are also widely used in foreign construction mar
20、ket.2 energy-saving doors and windowsDoors and windows are the most active part of the buildings heat exchange and heat transfer, and therefore become a relatively large part of building energy consumption. Therefore, the use of energy-saving doors and windows for the construction industry is of gre
21、at significance. The energy consumption for heating residential buildings as an example, the building energy consumption mainly by conduction heat consumption structure around the building envelope and air hole penetration through the doors and windows of two parts. The use of energy-saving doors an
22、d windows, on the one hand to improve the thermal performance of the window frame through the window and door profile its material selection or increase the bridge or wear and other measures, at the same time through the use of hollow glass, Loe glass glass to ensure air tightness and heat insulatio
23、n, on the other hand, through the foaming thermal insulation material, reducing the gap between the door and window frame and buildings lap, reduce the loss of door and window air infiltration heat loss.3. Energy-saving roofThe roof is also one of the important channels of heat loss. Under normal ci
24、rcumstances, the roof of energy-saving insulation is through the low capacity, low thermal conductivity, low water absorption and a certain degree of hardness of the heat insulation material, laying between the waterproof layer and roof. Therefore, there are a lot of thermal insulation materials can
25、 be selected, you can use the aerated concrete block, expansive cement plate, cement polystyrene board, polystyrene board, plastic extruded board, plate material, can also use the expanded perlite, ceramsite, pumice, slag and other bulk materials into cement on-site pouring. In addition, the expansi
26、on perlite, glass wool, rock wool and other loose materials can be packed into the bag and laid on the roof or the upper part of the ceiling. Finally, we can also use rigid polyester foam and fly ash, cement based foam concrete and other materials for on-site foam pouring.Three, the application of n
27、ew energy saving technology in construction projects1. Green energy saving technology in buildingsThe author believes that in the residential design process, we should make full use of solar energy, geothermal energy, through the full application of these clean energy to achieve the purpose of reduc
28、ing building energy consumption and environmental protection. First of all, through the rational planning of the building, can make good use of solar energy, so as to achieve the purpose of energy conservation. For example, a good residential design can achieve the goal of green energy conservation
29、through the use of solar energy. Good housing can control the building within the sunlight environment of solar energy utilization, improve the living environment of the microclimate, improve comfort, reasonable construction layout can improve the ventilation effect of the District, according to the
30、 local climate, make full use of manufacturing environment of natural wind, can reduce the energy consumption of cooling in summer. Secondly, in the era of energy crisis facing the world today, it is of great practical significance to exploit the great and attractive deep energy geothermal energy at
31、 the foot of mankind. Geothermal power can be used in many aspects, such as geothermal power generation technology, geothermal refrigeration technology, ground source heat pump technology, geothermal heating technology and so on. Among them, ground source heat pump technology is also one of the impo
32、rtant means of building energy efficiency. The ground source heat pump system takes heat from geothermal energy to raise the temperature, then heating and heating buildings, and solves the problems of heating and living hot water supply for residents. As a new energy of green cleaning, geothermal re
33、sources have the characteristics of less investment, quick effect, convenient use, energy saving and environmental protection. Therefore, the development and utilization of geothermal resources are promising and it is a rare clean energy. Thirdly, the adjustable shading curtain technology is also an
34、 important aspect of building energy saving technology. Conventional shade curtains are made of light or thickening fabric on the basis of traditional curtains, so as to achieve the basic control of light,Shading effect is achieved. Adjustable shading curtains can meet the shading and windproof effe
35、ct, can control the angle conversion wind through the computer burglary, natural environmental protection, energy saving and beautiful; adjustable shading curtains are simple and clean, convenient and practical, wind shock, has no side seam, full shading.2, wall insulation technologyThe construction
36、 of wall insulation system is the key link of energy saving measures. The heat preservation layer of the wall is usually arranged on the inside or outside of the wall, and the inner side is provided with technical measures, but the effect of heat preservation is not as good as that of the outside. T
37、he utility model can save the use area at the outside, but the problems of cracking, water seepage, shedding and durability are easy to be solved because of improper measures. Cost is generally higher than the internal settings. The construction process usually adopts plastering, spraying, dry hangi
38、ng, pasting and compounding. At present, there are mainly 4 kinds of external thermal insulation wall system: adhesive and fixed way, thin plastering external thermal insulation system, mechanical fixed way external thermal insulation system, hanging plate external thermal insulation system and ther
39、mal insulation block external thermal insulation system. According to different insulation materials and different construction methods, different construction technical measures are adopted. .ZL rubber powder polyurethane coating is a kind of exterior wall insulation and energy saving construction
40、technology.3, other energy-saving technologiesSolar energy is a renewable and clean energy source, and it will have great potential in the future construction industry. From the point of view of construction, it does not need transportation, and can be used free of charge, without any pollution to t
41、he environment. The author believes that solar energy technology in thermal insulation and energy conservation should have great potential for development. Therefore, in the process of building energy conservation, solar energy saving devices and buildings should be organically combined.With the fur
42、ther promotion of Chinas modernization and energy saving thoughts, building energy efficiency will become the focus of energy conservation research in the future. We believe that through the promotion of environmentally friendly building materials, the application of modern science and technology, will certainly enable Chinas construction industry toward green, environmental protection and energy saving direction. Posted at the China Paper Download Center http:/