On the environmental protection energy-saving building materials Research and Development Strategy

Paper Keywords: energy saving strategy of building materials
Abstract: The Environmental Protection energy-saving building materials were reviewed current Research on the Development of environmentally friendly energy-saving building materials, Applications in the future, building materials, green energy that is currently the world's hot issues of common concern, Environmental Protection and energy-saving construction materials can not develop without the Application of high-tech and new materials.

Building materials production and processing industry is a typical energy consuming industries, the production and processing not only spend a lot of energy, but also pollute the environment. According to statistics, the building materials industry in 2005 accounting for various types of energy consumption of total energy consumption 7% of the dust and emissions are generated by the country's total emissions of industrial dust and 63% and 8.5% among the nation's industry, the first and second place. Thus, in the national energy saving and emission reduction , the building materials industry has a pivotal role. Thus, the Development and promotion of environmentally friendly energy-saving building materials is imperative.

Energy Saving to do environmentally friendly building materials, construction materials should be considered, the production and use of energy, maximize the use of industrial waste as raw material, to ensure the conditions of a certain material costs, select the insulation effect of a good building material. Green energy efficient building materials is with the minimum of information, and make full use of industrial and agricultural waste and recycled materials to create high-performance materials. in the production process also minimize air pollution and energy consumption.

An environmentally friendly energy-efficient Development and Application of building materials
1.1 Environmental Protection Development of energy-saving building materials
1.1. A waste plant fiber
Waste plant fiber is a kind of multiple use of renewable biological resources, mainly refers to the straw, waste wood, bamboo and other waste. China is a large agricultural country, crop stalks and other waste plant fiber is rich in resources.

Waste plant fiber has many good performance, energy-saving building materials in the environmental Development and Application of performance has a great potential.

Compared to other building materials, the straw and other plant fibers to make the block for the processing of raw materials, quick and easy, no environmental pollution, green energy can be regarded as material, use it to construct buildings more can be said to have is one hundred percent of the ecological construction. However, due to the characteristics of the material itself, for the building also has some limitations, the current can not be used for more than two load-bearing elements of construction needs, but demand for the current widespread public private residential and small building block is very suitable for straw, but also to meet the current mentality of the people respect for nature.

1. 1.2 Gypsum Building Materials
Gypsum building materials have the advantages: 1) the calcined gypsum is relatively low energy consumption (only cement the 1 / 4 lime 1 / 3), and thus the use of gypsum construction materials can greatly save energy; 2) than solid brick building plaster concrete are saving materials; 3) gypsum building of a reusable, no construction waste; 4) gypsum nontoxic, has good heat resistance, fire resistance of fly ash .1 .1.3
Fly ash is a coal-fired power plant boilers, an industrial waste discharge. China's 2000 emissions of 160 million ash t, and continue to increase every year, ash covers an area of ​​large and threaten the ecological environment, dispose of One effective way is to fly ash used in building materials will. soil using fly ash instead of part of He fired brick production, hollow bricks, tiles and other ceramic sintered fly ash, and fly ash production of pottery quality of products is a promising new type of environmentally friendly energy-saving building materials.

1 .1 .4 foam glass
Foam glass is a set of Environmental Protection, thermal insulation, fire-retardant, moisture barrier, sound absorption in one of the new building materials. The raw material is waste glass bottles of various colors or flat pieces, belonging to the waste utilization; production of products with significant environmental benefits; production process does not have a "waste."
Foam glass with a light weight, high compressive strength, low thermal conductivity, good fire resistance, permeability waterproof ability, chemical stability, higher characteristic, is both heat and cold in the building materials. At present, widely used in the foam glass kinds of places, such as the place of bricks and blocks, as the roof, wall, ceiling material and insulation components.

1 .1 .5 membrane material
Composite membrane materials used in construction with good transparency, low density, high mechanical strength, durability, fire protection, thermal insulation and anti-ultraviolet, and other fine features, so a new generation of environmentally friendly energy-saving building materials. For the construction of a wide range of membrane materials , according to the different materials can be divided into two categories: 1) PTFE membrane material type, the resin content of more than 90%; 2) PVC type film material.

Membrane of natural light transmission rate of up to 20, even if the performance requirements of high thermal insulation layer membrane construction, the transmission rate of 4% to 8% in the membrane structure transmitted light to produce uniform diffuse internal incident light, no shadows, no glare, during the day to meet the needs of a variety of indoor activities, which can save a lot of electricity for lighting. membranes have high reflectivity and low absorption rate, and low thermal conductivity, which largely prevented the solar radiation into the room, reducing heat transfer, has good thermal insulation properties. membrane chemical stability, will not cause pollution and harm the human body, as a green membrane building materials in developed countries has been vigorously promoting and Applications.


1.1 .6 Other energy-saving environmentally friendly building materials
A nano-microencapsulated phase change materials can be energy saving as a new type of environmentally friendly building materials, the main component of nano-and micro-encapsulated phase change materials. Nanoparticles in the optical catalyst, can kill viruses, eliminate harmful gas VOC and inorganic , unreasonable people in the case of outdoor air to effectively improve indoor air quality, reduce energy consumption of air-conditioning systems; the same time, microencapsulated phase change material through the phase transition, the molecular structure of substances occurs rapidly changing temperature conditions in the endothermic or heat, temperature changes in the outside world can effectively maintain the stability of the indoor thermal environment, reducing energy consumption, to building energy conservation purposes. Links to free Research Papers Download http://www.hi138.com 1.2 Huanbao Application of energy-efficient building materials
1.2.1 for the wall and the environmentally friendly energy-efficient building envelope materials
Energy-saving building materials must be balanced with the external walls of a suitable heat storage capacity and good thermal insulation properties, compound wall is preferred.

Hollow block and brick are common, energy-saving building a good wall. In hollow block wall, you can add to fill the gap of expanded perlite, bulk bulk glass wool or mineral wool loose fill insulation, etc. materials, lower thermal conductivity and wall heat transfer between the role of block. In addition, the floc with high compressed air or blown glass wool block cavity wall, fill compaction, can also play an good thermal insulation effect.

Application of more energy-saving wall materials of Huanyou aerated concrete. Aerated concrete is a new type of wall insulation excellent low energy saving materials, all wall material is present only 65% ​​to meet the requirements of the standard Jieneng the Danyi material. It has been widely used both inside and outside walls, roof, floor sloping roof of peace, not only for civilian residential buildings, and can be widely used in industrial buildings and 4-layer structure of these hybrid bearing wall buildings.

For the building envelope, can be highly efficient use of lightweight glass wool, rock wool, foam and other insulation materials to reduce building energy consumption.

1.2.2 for the roof, floor and windows of the green energy-saving building materials
Energy-saving Environmental Protection for the roof materials are glass wool or mineral wool mats (mat), these insulation materials and decorative veneer composite made of the ceiling, attic space and roof to reduce heat transfer coefficient between the ceiling for heat insulation insulating effect.

Doors and windows of high-energy buildings energy consumption in total energy consumption of about 40% of the total green energy-saving windows and doors so it is particularly important. Plastic door and window insulation performance than the commonly used steel, wood, aluminum windows and doors are much better; the same time the production process of plastic doors and windows adopt cleaner production technologies, use less natural energy, to produce the windows and doors no poison, no pollution, no radiation, is conducive to Environmental Protection and human health, in line with people's "green building" concept, which is environmentally friendly energy-saving plastic windows and doors building materials.

2 green energy-saving strategies for future development of building materials
Development of environmentally friendly energy-saving building materials, to fundamentally change the building materials industry in the Development of the high input and low output, high consumption, high pollution and low efficiency of the extensive mode of production, select the resource-saving and pollution of the lowest type, quality and efficiency, Pilot-based approach to development, the development of building materials and resource use, ecological protection, pollution control organically combined, this is the 21st century, the development of the strategic objectives of building materials.

China's building materials industry, the direction of future development strategy should be: to develop environmentally friendly energy-saving building materials, the use of low energy manufacturing process and production technologies do not pollute the environment, try not to use the human body contains harmful organic chemicals, taking into account the production and recycling of recyclable , stick to the resource-saving and environment-friendly sustainable development.

3 Conclusion
Building materials, environment protection and energy is an important state policy and the implementation of sustainable development an important scientific concept of development policy. Building materials, green energy is not only an economic problem, more important is the development of a national strategic issues. The Government, the media has a responsibility and obligation to guide the consumer, only this type of environment protection and energy development road building can be more open. construction administrative departments should strengthen supervision, to the green energy conservation has been implemented to make the building truly to reduce energy consumption, save money, save resources and environmentally friendly purposes. building energy-saving society, and everyone's efforts and participation, health, comfort, low energy buildings have mushroomed in the motherland, for the benefit of the people, for the benefit of society. reposted elsewhere in the Research Papers Download http://www . hi138.com