DE421776C - Process for the production of a salt water resistant cement from blast furnace slag - Google Patents

Process for the production of a salt water resistant cement from blast furnace slag

Info

Publication number
DE421776C
DE421776C DEG58651D DEG0058651D DE421776C DE 421776 C DE421776 C DE 421776C DE G58651 D DEG58651 D DE G58651D DE G0058651 D DEG0058651 D DE G0058651D DE 421776 C DE421776 C DE 421776C
Authority
DE
Germany
Prior art keywords
blast furnace
furnace slag
salt water
production
water resistant
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.)
Expired
Application number
DEG58651D
Other languages
German (de)
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.)
RICHARD GRUEN DR
Original Assignee
RICHARD GRUEN DR
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 RICHARD GRUEN DR filed Critical RICHARD GRUEN DR
Priority to DEG58651D priority Critical patent/DE421776C/en
Application granted granted Critical
Publication of DE421776C publication Critical patent/DE421776C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/14Cements containing slag
    • C04B7/147Metallurgical slag
    • C04B7/153Mixtures thereof with other inorganic cementitious materials or other activators
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

Verfahren zur Herstellung eines salzwasserbeständigen Zementes aus Hochofenschlacke. Es ist schon lange bekannt, Hochofenschlacke mit gewöh'nlic'hem Portlandzementklinker zu vermahlen. Das Mischungsverhältnis schwankt bei dieser Vermählung zwischen 7o bis 15 Prozent Klinkerzusa;z. Für manche Spezialzemente wird auch weniger genommen.Process for the production of a salt water resistant cement from blast furnace slag. It has long been known to grind blast furnace slag with ordinary Portland cement clinker. The mixing ratio fluctuates between 70 and 15 percent clinker additive for this type of grinding; For some special cements less is used.

Auch die Vermahlung von Erzzement mit Hochofenschlacke ist nach der Patentschrift 359766 der Klasse Bob möglich und führt zu guten Ergebnissen, besonders zu salzwasserbeständigem Zement. Nach dem neuen Verfahren soll eine Hochofenschlacke statt mit Portlandzementklinker oder mit Erzzement mit hocnton.-erdehaltigem Klinker oder mit geschmolzenem Tonerdezement vermahlen werden. Das Molekularverhältnis des Kalkes zu Tonerde kann in weiten Grenzen schwanken, und die Tonerde kann teilweise durch Eisenoxyd ersetzt sein. Zwei Beispiele für derartige Zemente sind im folgenden angeführt Kieselsäure Tonerde und Eisen Kalk Magnesia 1. 15,0 Prozent 30_7 Prozent 51,7 Prozent 2,3 Prozent, 2. 10,7 - 49,2 - 38,5 - 1.3 - Die tonerdehöhen Zusatzzemente können in gesintertem oder geschmolzenem Zustande verwendet werden. Auch zerrieselte Zemente sind brauchbar; sie haben häufig recht gute Eigenschaften.The grinding of ore cement with blast furnace slag is also possible according to patent specification 359766 of the Bob class and leads to good results, especially to cement that is resistant to salt water. According to the new process, a blast furnace slag is to be ground with clinker containing clay or with molten alumina cement instead of Portland cement clinker or ore cement. The molecular ratio of lime to clay can vary within wide limits, and some of the clay can be replaced by iron oxide. Two examples of such cements are given below Silica alumina and iron lime magnesia 1. 15.0 percent 30_7 percent 51.7 percent 2.3 percent, 2. 1 0, 7 - from 49.2 to 38.5 - 1.3 - The high-alumina additional cements can be used in the sintered or molten state. Sprinkled cements can also be used; they often have quite good properties.

Die Vermahlung der Tonerdezemente mit der Hochofenschlacke geschieht in der bei Hochofenzement üblichen Weise, am besten zusammen in, einer Mühle mit der Hochofenschlacke. Natürlich kann aber auch 'die Vermahlung getrennt stattfinden und erst bei der Feinmahlung die Vereinigung herbeigefiüirt werden. Gipszusatz ist nicht unbedingt nötig, kann aber, wie üblich, stattfinden; auch ein höherer Gipszusatz schadet nichts.The high-alumina cements are ground with the blast furnace slag in the usual way with blast furnace cement, preferably together in a mill with the blast furnace slag. Of course, the grinding can also take place separately and the union can only be brought about during the fine grinding. Plaster of paris is added not absolutely necessary, but can, as usual, take place; also a higher amount of plaster of paris does no harm.

Die auf diese Weise hergestellten Zemente haben den großen Vorzug, daß sie nicht so teuer sind wie reine Tonerdezemente; außerdem zeichnen sie sich vor diesen durch höhere Salzwasserbeständigkeit aus und erreichen für alle Bauvorhaben genügende Festigkeiten.The cements produced in this way have the great advantage of that they are not as expensive as pure alumina cements; they also stand out in front of these by higher salt water resistance and achieve for all construction projects sufficient strength.

Claims (1)

PATRNT-ANsPRUcH: Verfahren zur Herstellung eines salzwasserbeständigen Zementes aus Hochöfenschlacke, dadurch gekennzeichnet, daß die Hochofenschlacke mit hochtonerdehaltigem Klinker oder mit geschmolzenem Tonerdezement vermahlen wird in gleichem Mischungsverhältnis wie ges bei Hoc'hofenzement und Eisenportlandzement üblich ist.PATRNT CLAIM: Process for the production of a salt water resistant Cement made from blast furnace slag, characterized in that the blast furnace slag is ground with high alumina clinker or with molten alumina cement in the same mixing ratio as total for Hoc'hofenzement and Eisenportlandzement is common.
DEG58651D 1923-03-11 1923-03-11 Process for the production of a salt water resistant cement from blast furnace slag Expired DE421776C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG58651D DE421776C (en) 1923-03-11 1923-03-11 Process for the production of a salt water resistant cement from blast furnace slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG58651D DE421776C (en) 1923-03-11 1923-03-11 Process for the production of a salt water resistant cement from blast furnace slag

Publications (1)

Publication Number Publication Date
DE421776C true DE421776C (en) 1925-11-17

Family

ID=7131941

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG58651D Expired DE421776C (en) 1923-03-11 1923-03-11 Process for the production of a salt water resistant cement from blast furnace slag

Country Status (1)

Country Link
DE (1) DE421776C (en)

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