On the Application of foam Glass in Interior Design

. foam glass is the waste glass under the action of other materials to make a new type of mixed material, its itself has good stability, corrosion resistance, heat resistance, not combustion, remain normal at high and low temperature, exposed to oxidation in the air, in building indoor and outdoor insulation, noise reduction, waterproof moisturizing [1] , etc. In this paper, through the classification, performance, use and other aspects of foam glass, and through the method of data comparative analysis, the foam glass and various materials are compared, the data show that the foam glass has a good effect than traditional glass and thermal insulation materials.


2.Performance and application of foam glass
Foam glass is a kind of healthy, environmental protection, no pollution, no radioactive material, after use can be recycled to redo, for environmentally friendly green materials, then its not burning, waterproof, moisture-proof, can be used in the scope of large temperature difference, for 268℃ -427℃, can be used to many needed environment, place, and its not easy to weathering, aging, not by the influence of insect biting and microbial corrosion, very stable. In different use scenarios, there are also different requirements for the use of foam glass. By changing the dose of added chemical agents, we can adjust the internal opening and closed opening pore rate, so as to achieve the required performance, and make different specifications of foam glass (such as Table 2). The conventional standard use temperature for foam glass is-268℃ to 427℃. Foam glass used for building insulation, the temperature requirement is-200 ℃ to 400℃. In cracks, the size and number of holes and other appearance, there are also different requirements in different use scenarios. In addition, the thermal conductivity of the foam glass used in the building shall not be less than 0.048. The compression resistance strength of product No.160 shall not be less than 0.5MPa, and that of product No.180 shall not be less than 0.6MPa. Foam glass and ordinary glass in the performance of the difference mainly depends on its internal pore rate, ordinary glass fragile, have the risk of cracking, and foam glass high temperature resistance, not combustion can avoid the occurrence of this situation, have large capacity, heat preservation, thermal insulation, water absorption, fire excellent performance [3] , and because of the stability of the material internal pores, so its expansion shrinkage rate is small, similar to cement, increasingly become one of the choice of building materials.

Heat-insulated foam glass
Because of foam glass fire moistureproof, sound absorption water, thermal insulation, corrosion resistance and performance stability, size can be cut, so can be widely used in building inside and outside, basement to waterproof, insulation, heat insulation (such as table 3), when used for thermal insulation materials, foam glass pores for more than 75% of the closed hole bubbles to achieve the best effect. Compared with the traditional thermal insulation materials, foam glass has the advantages of small water absorption, good size stability, no oxidation, no deterioration and no combustion. Therefore, foam glass can be used in the indoor insulation layer, and the nature is stable, corrosion resistance, long service life.
In addition, the insulating foam glass has the following advantages: 1. simple construction: the quality of foam glass is stable, the adhesive strength is large, the construction period is short and firm and reliable.
2. good stickiness: because the building wall and foam glass itself is mostly inorganic materials, and because of the adhesive strength, so the foam glass and wall have a very good compatibility, each structure is reliable.
3. waterproof crack resistance: foam glass itself strong waterproof performance, water absorption, almost 0, make the wall in the use of foam glass insulation, avoid the use of traditional insulation material, water absorption, powder, volume shrinkage expansion rate and late empty drum, foaming, cracking, and so on and so forth.
4. impact resistance: the physical properties of foam glass and its internal uniform and dense pores make it have good performance in the corresponding impact situation.
Foam glass is A kind of superior performance of heat insulation (cooling), sound absorption, moisture, fire proof light high strength building materials and decorative materials, the use of temperature range of minus 196 degrees to 450 degrees, A class non-combustible and the building life, thermal conductivity is 0.058, moisture coefficient is almost 0. Although other new thermal insulation materials emerge in an endless stream, but the foam glass with its permanent, safety, high reliability, low heat insulation, moisture-proof engineering, sound absorption and other fields occupy an increasingly important position. Its production is the reuse of waste solid materials, which is an example of protecting the environment and obtaining rich economic benefits.

Sound-absorbing foam glass
Because the pores in the foam glass are small and uniform and dense, and the current production principle of sound absorption materials is also to use loose porous materials, the pores are mostly open holes through the interior, the sound is subject to air friction and viscosity resistance, the sound energy into heat energy, so that the sound is "absorbed" by the material. As a new type of sound absorption material, foam glass has obvious advantages compared with traditional organic fiber, inorganic fiber, inorganic foam and foam plastics [4] (such as Table 4).
Foam glass if to reach the degree of sound absorption, the internal hole rate and connected hole rate above 50%, often used in indoor places, such as: conference room, concert hall, recording studio, gymnasium, etc., and because of its corrosion prevention, moistureproof, waterproof performance, also can be used in the outdoor, such as: swimming pool, subway, viaduct sound barrier [5] .
Sound absorption with foam glass can not only have a good noise reduction, and has the light, non-combustible, not rot and moisture, water absorption, sound absorption and thermal insulation with foam glass under the appropriate process can also make color products, both the sound absorption, insulation, and can yet be regarded as a good decoration material, has a double role. Soundabsorbing foam glass has been widely used in developed countries in subways, underground military facilities, tunnels, factory workshops, concert halls, theaters and conference halls, as well as in buildings around airports to reduce noise.
1. Due to its good aging resistance and water resistance, foam glass is very suitable for the weather and humid outdoor environment. For example, the sound barriers of urban roads, underground engineering, subway and so on.
2. Sound-absorbing foam glass can effectively control the time of reverberation in the process of designing the sound quality of the hall. At present, this feature is widely used in film theaters, concert halls, film and television recording studios and other places. 3. Because of its own sound absorption characteristics, foam glass can also be used to make mufflers. Because the fiber sound absorption material will blow dust in the process of use, and foam glass does not exist this problem, more suitable for the requirements of the environment.
4. Many transportation hubs, such as bus stations, railway stations and airports. Because the noise is larger, we will generally choose sound-absorbing foam glass to decorate the wall and the top, on the one hand, reduce the noise, on the other hand, reduce the mixing sound, can effectively improve the clarity of the broadcas Sound absorption and sound elimination with foam glass can not only play a good noise reduction role, but also has light quality, non-combustible, not rot and moisture, water absorption after not softening and other characteristics. Sound absorption and sound elimination and heat insulation foam glass can also be made into color products under the appropriate process, both play sound absorption, insulation role, and can yet be regarded as a good decorative material, has a double role. Soundabsorbing foam glass has been widely used in developed countries in subways, underground military facilities, tunnels, factory workshops, concert halls, theaters and conference halls, as well as in buildings around airports to reduce noise.

3.Research status
Foam glass is playing an increasingly important role in today's development. The waste industrial waste is transformed into pollution-free and stable building materials that can be reused. However, in the current environmental technology, the production and use of foam glass still has great defects. 1.Due to the complex raw materials of foam glass, it is difficult to use relatively simplified machines to produce directly at present, requiring different machines to cooperate with each other, resulting in increased production costs, which is also the direct reason why the foam glass has not been widely promoted.
2.the use value of foam glass more attached to the internal pores, and in the production process, there are many factors affecting the pores, such as: adhesive, foaming agent, foam agent, solvent and heating temperature and heat preservation time, and has not yet developed fine machine, stable production need to use specification, size of foam glass.
3.Most of China's domestic manufacturers do not carry out specialized and large-scale production. In production, energy consumption, dust environmental pollution, low production efficiency and other problems are very obvious, making the production cost of manufacturers increase, specialized production process and other problems constantly hinder [6] . 4.foam glass principle can be used many waste material production, but in this stage, the production of foam glass materials or use waste glass materials, cost is still high, not yet large-scale use of rich resources, low price of raw materials production [7] , makes the foam glass production cost is higher. 5.At present, the use scope of foam glass is basically limited to the insulation of buildings, cold storage of large warehouses, noise reduction of machine room, highway sound insulation wall, etc., but its application field is limited and has not been used in high-end fine fields, resulting in its low added value.

4.Conclusion
As foam glass is more remarkable compared with other materials in terms of moisture resistance, fire resistance, and corrosion resistance, in addition to its nondeteriorating and non-aging characteristics, it can be used for a long time in environments with large temperature differences, humid air, and materials susceptible to corrosion [8] . Because it is non-polluting and nonhazardous to the environment, it is called a green and environmentally friendly material, and the world is paying more and more attention to green issues, energy saving and environmental protection tend to be stricter, and the use of foam glass in the future will be more and more extensive [9] . Although the research, production, and promotion of foam glass in China are not yet mature, more and more institutions and researchers will definitely conduct in-depth research and exploitation of foam glass in the future because of its good performance, and continuously optimize the technical production process to meet the green and low-carbon development needs of the future society [10] .