Effect on Compressive Strength by Mizing Ratio of MSWI Melting Slag/Bottom Ash
In this work, inorganic paste was made from melting slag (MS) of MSWI ash and MSWI bottom ash (MBA) by geopolymer technique. Heavy metals such as Pb and Cu are highly contained in MBA. In the view of environmental protection and resource conservation, recycling of MSWI ash is desirable. MS and MBA were mixed to make inorganic paste. Compressive strength was measured to evaluate the characteristics of inorganic paste after the period of 1, 3 and 7day.Compressive strength of almost 90 MPa was obtained at the mixing ratio of MS : MBA=9 : 1. And the crystalloid and crystal structure was analyzed by FTIR and XRD. Korea Standard leaching Test (KSLT) is also used to evaluate the environmental safety of inorganic paste. The leached concentration of Pb and Cu were 0.44 ppm and 0.15 ppm, respectively. According to this result,heavy metals were safety immobilized and stabilized.
melting slag MSWI bottom ash geopolymer immobilization compressive strength
Woo-Keun Lee Eun-Zoo Park Ji-Hyeon Lee Yeong-Seok Yoo
Department of Environmental Engineering, Kangwon National University, Chuncheon, Kangwondo, 200-701, Advanced Environmental Technology Research Division, Korea Institute of Construction Technology, 411
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
631-634
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）