Nanotechnology is one of the new technologies and the demand for new materials in the building industry has been increased with increase in the population and constructions as well as the deficiency of consumable resources and materials. Attempts for achieving solutions to improve the quality and increase material function and reduce the consumption of raw materials and energy have led to use new technologies in this industry. Nanotechnology is one of the greatest new technologies in the present century, which has Valuable applications in the building industry. Among the cases of using nanotechnology in the building industry, the production of appropriate materials with proper characteristics for various parts of a building, the use of them in the building facilities as well as its application in production, consumption, and saving energy with high performance could be mentioned.
Nano, Nanotechnology, Material, Building construction.
The realization of global and national policies provides major opportunities for revision of the use of land, energy, and environment so that it could be created a habitation that not only provides a desirable and high quality life for the present and future generations, but also ensures the sustainability of the Earth planet and the human spirit (Taghadosi, 2002). Nowadays, the application of new technologies in various industries has led to the incidence of great developments in the process of completion and upgrading of technology and human knowledge. Nanotechnology, as one of the new human technologies has been able to make substantial developments in various industries especially the construction industry. The substance of nanotechnology is the ability of working in the atomic and molecular scales, and beyond that, in the dimensions of 1 to 100 nm with the aim to produce and manipulate in the how atoms or molecules are arranged, by the use of material, equipment, and systems with new capabilities. In fact, the purpose is to create future molecule by molecule. The nanotechnology will lead to make dramatic changes in the use of natural resources, energy, and water and reduces wastewater and pollution. In addition, it will provide the possibility of recycling and reuse of materials, energy, and water. Regarding the indiscriminate use of energy and the environmental damages, the world energy is in a critical condition, which looking for a solution in this field will be a help for survival and preservation of the environment for future generations (Abbaspour 2007).
For summarizing the application of nanotechnology in construction industry, it could be expressed so that this technology is attempting to penetrate the building industry from two aspects: at first, in order to optimize and enhance the performance of existing technologies, and then, to present a new group of materials and productions that had not been possible before the emerge of nanotechnology. Originally, the nano science and technology has put a new path in front of building engineers, from which new methods have been shown to produce high efficiency materials with better performances. More durable and higher quality concretes and more strength steel and self-cleaning glasses could be produced, thanks to this technology. Finally, it could be noticed that recent advances in the science have led to create materials by nanotechnology, and therefore, the reaction of materials in the nanotechnology could be controlled and fit it in the direction of building engineers performance.
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