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A platform for research: civil engineering, architecture and urbanism
Preparation of alinite cement from municipal solid waste incineration fly ash
Abstract The feasibility of partially substituting ordinary raw materials with municipal solid waste incineration (MSWI) fly ash in alinite cement production was investigated by X-ray diffraction (XRD), X-ray fluorescence spectrometry (XRF) and scanning electron microscopy (SEM). The physical properties and leaching behavior of the produced cement were also evaluated. Experimental results show that good quality clinkers can be obtained by firing the raw mixes, in which the replacement of MSWI fly ash reaches to 30%, at 1200°C for 2h. Alinite cements have higher early strengths at all gypsum additions, while the best result having acceptable early and 28-day strengths is obtained at 5% of gypsum addition. Results also show that the leaching toxicity of heavy metals is far lower than that of the regulatory limit at all testing ages. Based on this study, MSWI fly ash is viable as an effective, alternative raw material in alinite cement production.
Preparation of alinite cement from municipal solid waste incineration fly ash
Abstract The feasibility of partially substituting ordinary raw materials with municipal solid waste incineration (MSWI) fly ash in alinite cement production was investigated by X-ray diffraction (XRD), X-ray fluorescence spectrometry (XRF) and scanning electron microscopy (SEM). The physical properties and leaching behavior of the produced cement were also evaluated. Experimental results show that good quality clinkers can be obtained by firing the raw mixes, in which the replacement of MSWI fly ash reaches to 30%, at 1200°C for 2h. Alinite cements have higher early strengths at all gypsum additions, while the best result having acceptable early and 28-day strengths is obtained at 5% of gypsum addition. Results also show that the leaching toxicity of heavy metals is far lower than that of the regulatory limit at all testing ages. Based on this study, MSWI fly ash is viable as an effective, alternative raw material in alinite cement production.
Preparation of alinite cement from municipal solid waste incineration fly ash
Wu, Kai (author) / Shi, Huisheng (author) / Schutter, Geert De (author) / Guo, Xiaolu (author) / Ye, Guang (author)
Cement and Concrete Composites ; 34 ; 322-327
2011-11-26
6 pages
Article (Journal)
Electronic Resource
English
MSWI , municipal solid waste incineration , XRD , X-ray diffraction , XRF , X-ray fluorescence spectrometry , SEM , scanning electron microscopy , EDS , energy disperse spectroscopy , ICP-AES , inductively coupled plasma atomic emission spectrophotometer , <italic>KH</italic> , lime saturation moduli , <italic>a</italic> , silica-alumina ratio , <italic>c</italic> , silica-chloride ratio , MSWI fly ash , Alinite , Gypsum , Compressive strength , Heavy metals
Preparation of alinite cement from municipal solid waste incineration fly ash
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