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Title: Preparation of the saving-energy sulphoaluminate cement using MSWI fly ash. Author: Shi HS, Deng K, Yuan F, Wu K. Journal: J Hazard Mater; 2009 Sep 30; 169(1-3):551-5. PubMed ID: 19409703. Abstract: MSWI fly ash was used as a major cement raw material in sintering sulphoaluminate cement clinker successfully in the laboratory. Sintering system, mechanical performance, hydration process and microstructure of the clinker was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence spectrometry (XRF), etc. The result shows that the clinker can be sintered properly under the temperature of 1200-1300 degrees C and sintered time of 120 min. Cl(-) content in the clinker made with MSWI fly ash is about 1.08%. However most Cl(-) cannot leach out in water solution from the hardened cement paste during curing age between 1d and 28d because of the Cl(-) being combined in clinker minerals and its hydrates. The compressive strength of the sulphoaluminate cement was high in early age while that developed smoothly in later age.[Abstract] [Full Text] [Related] [New Search]