ELUTION TESTING METHOD AND SLAG PRODUCT MANUFACTURING METHOD

• Main Authors: FUJII IKUO, YUKI TOSHITAKA, KUROIWA TAKESHI, KINOSHITA TAKEICHI, MATSUNAGA SHINICHI
• Format: Patent
• Language: English
• Published: 10.11.2011
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide an elution testing method for measuring an elution amount of a component eluted from a steel making slag with a reduced elution time, and for obtaining a measurement result of the elusion amount sufficient to primary decision for a use of a slag product with respect to correlation with an elution test result by an official method and to reproducibility of the measurement result.SOLUTION: In an elution testing method that measures an elution amount of a component eluted from a specimen immersed in water, a steel making slag that is the specimen is pulverized so as to achieve a grain size in a range of 2 mm or smaller. The pulverized steel making slag is immersed in immersion water of min. 45°C to max. 90°C. After applying ultrasound to the immersion water for 5 minutes or longer, the elution amount of the component eluted in the immersion water is measured.