UTILIZATION OF BOTTOM ASH FOR ALKALI-ACTIVATED (SI-AL) MATERIALS: A REVIEW

Laila Deraman, Mohd Mustafa, Al Abdullah, Yun Liew, Ming, Kamarudin Hussin, Zarina Yahya, Aeslina Kadir, Tun Hussein, Onn Malaysia, Pahat Johor, Malaysia
2015 unpublished
In Malaysia, 180 tons/day of solid waste bottom ash are produced by a Tanjung Bin power station, which is one of the four coal power plants in Malaysia. Hence, to overcome this problem, the solid waste could be used as source material in construction industry using geopolymer technique. Alkali-activated materials are introduced as an alternative materials to ordinary Portland cement (OPC) in the construction industry. There are many types of alkaline activator raw materials such as bottom ash,
more » ... ly ash, metakaolin and so on that can be substituted the materials existing such as cement and fine or course aggregate in the market now to make any production where the materials are coming from waste.The geopolymerization process involves a substantially fast chemical reaction under alkaline conditions with Si and Al minerals that results in a three-dimensional polymeric chain and ring structure consisting of Si-O-Al-O. The higher Si-O-Al-O bonds are contained in the geopolymer, the higher compressive strength results will find. Several types of building materials such as bricks and blocks can be formed for commercial exploitation using bottom ash with geopolymerization method.
fatcat:hhsk4zmruvfn5lar6367knn23m