JPS54138804A - Manufacture of aggregate material from blast furnace slag - Google Patents

Manufacture of aggregate material from blast furnace slag

Info

Publication number
JPS54138804A
JPS54138804A JP4589978A JP4589978A JPS54138804A JP S54138804 A JPS54138804 A JP S54138804A JP 4589978 A JP4589978 A JP 4589978A JP 4589978 A JP4589978 A JP 4589978A JP S54138804 A JPS54138804 A JP S54138804A
Authority
JP
Japan
Prior art keywords
blast furnace
furnace slag
aggregate
manufacture
concrete
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4589978A
Other languages
Japanese (ja)
Inventor
Shuji Kajikawa
Kazuo Kanai
Haruo Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP4589978A priority Critical patent/JPS54138804A/en
Publication of JPS54138804A publication Critical patent/JPS54138804A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C21B3/08—Cooling slag

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Manufacture Of Iron (AREA)

Abstract

PURPOSE:To manufacture aggregate of excellent quality equal to that of natural ballast, without forming yellow water, by, in manufacture of aggregate used for concrete from blast furnace slag, cooling the slag rapidly from a temp. not lower than 600 deg.C. CONSTITUTION:In cooling process, blast furnace slag is cooled rapidly from a temp. not lower than 600 deg.C at a cooling rate of 20 - 100 deg.C/min. Hereafter it is crushed by a crusher to a prescribed particle size and is used as aggregate for concrete. Sulfur contained in the blast furnace slag is prevented from seeping by the glassy material formed through above-described rapid cooling of the blast furnace slag, thus excellent aggregate for use in concrete is obtained.
JP4589978A 1978-04-20 1978-04-20 Manufacture of aggregate material from blast furnace slag Pending JPS54138804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4589978A JPS54138804A (en) 1978-04-20 1978-04-20 Manufacture of aggregate material from blast furnace slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4589978A JPS54138804A (en) 1978-04-20 1978-04-20 Manufacture of aggregate material from blast furnace slag

Publications (1)

Publication Number Publication Date
JPS54138804A true JPS54138804A (en) 1979-10-27

Family

ID=12732081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4589978A Pending JPS54138804A (en) 1978-04-20 1978-04-20 Manufacture of aggregate material from blast furnace slag

Country Status (1)

Country Link
JP (1) JPS54138804A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002277176A (en) * 2001-03-15 2002-09-25 Mitsui Eng & Shipbuild Co Ltd Slag cooling method and slag cooling device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178781A (en) * 1974-12-30 1976-07-08 Nippon Steel Corp Kosaibarasuno seizohoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178781A (en) * 1974-12-30 1976-07-08 Nippon Steel Corp Kosaibarasuno seizohoho

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002277176A (en) * 2001-03-15 2002-09-25 Mitsui Eng & Shipbuild Co Ltd Slag cooling method and slag cooling device

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