Potential Building Applications of Fly-ash-A Secondary Resource Material Generated during Aluminium Production
Aluminium is a power intensive industry.The electrolysis process used to produce Aluminium requires large quantities of electrical power.In order to meet this huge power demand, most Aluminium smelters are equipped with their own captive power plants.Flyash is the major by-product of the captive power plants.Flyash is captured and removed from the flue gas by high efficient electrostatic precipitators.The flyash is periodically removed from the collection hoppers below the precipitators and is pneumatically transported to storage silos.This flyash is used by cement industries.The balance ash is mixed with optimum water to be transported to the ash pond through high concentration slurry disposal.Presently more than several thousand hectares of land is occupied by ash ponds.There is a challenge to use the balance un-utilized quantity of fly ash, which if left unattended, pollutes the environment.It is the need of the hour to utilize this flyash, not only for environmental considerations, but also to avoid land usage for flyash dumping.The present paper highlights the development of alternative building materials such as (i) Flyash-Natural Fibre reinforced polymer composites as wood substitutes (ii) Fired clay flyash bricks (iii) Flyash-Sisal Cement Roofing Sheet, (iv) Paints (v) Construction of Prototype houses using flyash based materials for environmental management.
Aluminium Industries Flyash Alternative Building Materials Captive Power Plant Environmental Management
Mohini Saxena
Advanced Materials and Processes Research Institute (CSIR), Bhopal
国际会议
32th International Conference & Exhibition ICSOBA-2014(第32届国际铝土矿、氧化铝和铝工业技术学术年会)
郑州
英文
511-523
2014-10-12（万方平台首次上网日期，不代表论文的发表时间）