A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR PRODUCING BLAST FURNACE SLAG FINE POWDER, AND METHOD FOR PRODUCING BLAST FURNACE CEMENT
PROBLEM TO BE SOLVED: To provide a method for precisely predicting an activity index and sorting excellent blast furnace slag even if quality of the blast furnace slag varies widely.SOLUTION: A method for producing blast furnace slag fine powder having the Cl content of 450-800 mg/kg comprises a step of simultaneously mixing/pulverizing the blast furnace slag, gypsum, limestone and an inorganic substance containing chlorine. The blast furnace slag fine powder contains 90-98 mass% of the blast furnace slag, 0.5-5.0 mass% of the gypsum and 0.5-5 mass% of the limestone.
【課題】高炉スラグの品質がばらついても、活性度指数を精度よく予測し、良好な高炉スラグを選別出来る方法を提供する。【解決手段】高炉スラグと石膏と石灰石と塩素を含む無機物質とを同時に混合して粉砕し、Ｃｌ含有量が４５０〜８００ｍｇ／ｋｇである高炉スラグ微粉末を製造する、高炉スラグ微粉末の製造方法である。更に、前記高炉スラグ微粉末は、前記高炉スラグ９０〜９８質量％、前記石膏０．５〜５．０質量％及び前記石灰石０．５〜５質量％を含有する、高炉スラグ微粉末の製造方法である。【選択図】 図１
METHOD FOR PRODUCING BLAST FURNACE SLAG FINE POWDER, AND METHOD FOR PRODUCING BLAST FURNACE CEMENT
PROBLEM TO BE SOLVED: To provide a method for precisely predicting an activity index and sorting excellent blast furnace slag even if quality of the blast furnace slag varies widely.SOLUTION: A method for producing blast furnace slag fine powder having the Cl content of 450-800 mg/kg comprises a step of simultaneously mixing/pulverizing the blast furnace slag, gypsum, limestone and an inorganic substance containing chlorine. The blast furnace slag fine powder contains 90-98 mass% of the blast furnace slag, 0.5-5.0 mass% of the gypsum and 0.5-5 mass% of the limestone.
【課題】高炉スラグの品質がばらついても、活性度指数を精度よく予測し、良好な高炉スラグを選別出来る方法を提供する。【解決手段】高炉スラグと石膏と石灰石と塩素を含む無機物質とを同時に混合して粉砕し、Ｃｌ含有量が４５０〜８００ｍｇ／ｋｇである高炉スラグ微粉末を製造する、高炉スラグ微粉末の製造方法である。更に、前記高炉スラグ微粉末は、前記高炉スラグ９０〜９８質量％、前記石膏０．５〜５．０質量％及び前記石灰石０．５〜５質量％を含有する、高炉スラグ微粉末の製造方法である。【選択図】 図１
METHOD FOR PRODUCING BLAST FURNACE SLAG FINE POWDER, AND METHOD FOR PRODUCING BLAST FURNACE CEMENT
高炉スラグ微粉末の製造方法および高炉セメントの製造方法
MISUMI HIDETOSHI (author) / ITO TAKAYASU (author) / TAKAHASHI TOSHIYUKI (author)
2016-01-18
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| Engineering Index Backfile | 1950
| Engineering Index Backfile | 1964