Rapid Determination Of CaO and SO3 in Loose Powder Cement by Energy Dispersive X-Ray Fluorescence (EDXRF) Technique
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Date
2006
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Abstract
Percentage CaO and SO3 in loose powder cement were determined rapidly using the EDXRF spectrometer. Sample particle size was further reduced by grinding in a rotating disc gyratory mill for a period of 120 seconds. To avoid the absorption of secondary x-rays from the low atomic number elements (Ca and S), measurement was carried out in helium atmosphere instead of air. The results showed a high degree of accuracy and precision technically desired for process control in a cement factory. The method was found to be more effective (less time consuming and cost saving) compared to the pressed pellet or the fused bead methods employed on the EDXRF spectrometry and the spectrophotometric and gravimetric methods often used by the industry.