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DE518905C - Slag cement made from blast furnace slag and Portland cement - Google Patents

Slag cement made from blast furnace slag and Portland cement

Info

Publication number
DE518905C
DE518905C DEA46534D DEA0046534D DE518905C DE 518905 C DE518905 C DE 518905C DE A46534 D DEA46534 D DE A46534D DE A0046534 D DEA0046534 D DE A0046534D DE 518905 C DE518905 C DE 518905C
Authority
DE
Germany
Prior art keywords
cement
slag
blast furnace
portland cement
furnace slag
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
DEA46534D
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.)
ALBRECHT DUEMMLER
Original Assignee
ALBRECHT DUEMMLER
Publication date
Priority to DEA46534D priority Critical patent/DE518905C/en
Application granted granted Critical
Publication of DE518905C publication Critical patent/DE518905C/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
    • C04B7/21Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing 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

Schlackenzement aus Hochofenschlacke und Portlandzement Es sind sowohl Hochofenzemente aus Hochofenschlacke und Portlandzement als auch Schlackenzemente aus Hochofenschlacke, Zement und Kalk bekannt. In letzterem Falle werden die drei Bestandteile in annähernd gleichen Teilen verwendet, und als Kalk werden in der Regel kalkhaltige Klinker oder Kalkhydrat benutzt. Auch sind Zemente aus Hochofenschlacke mit geringen Zusätzen von Kalk und Gips bekannt.Slag cement from blast furnace slag and portland cement are both Blast furnace cements made from blast furnace slag and Portland cement as well as slag cements known from blast furnace slag, cement and lime. In the latter case, the three Components used in approximately equal parts, and as lime are used in the Usually calcareous clinker or hydrated lime is used. Cements are also made from blast furnace slag known with small additions of lime and gypsum.

Diesen Vorschlägen gegenüber unterscheidet sich die Erfindung dadurch, daß als Zuschläge zu der Hochofenschläcke Portlandzement und Ätzkalk in geringen Mengen von je bis zu 5 °/ä und Gips gleichzeitig verwendet werden, und zwar müssen diese Stoffe, wie dies an sich bekannt ist, innig gemischt sein. Eingehende Versuche haben ergeben, daß hierdurch ein Hochofenzement erhalten wird, der hinsichtlich seiner Festigkeitseigenschaften Portlandzement überragt und der sich besonders durch hohe Anfangsfestigkeiten auszeichnet. Auch ist der neue Zement in jeder Hinsicht raumbeständig. Ein weiterer wesentlicher Vorteil ist die große Billigkeit des neuen Zementes, den man fast als einen reinen Höchofenzement bezeichnen kannte. Druckfestigkeit in kg/cm2 nach Tagen 3 7 2$ Wasser Lag. komb.Lag. Reiner Zement................................. 40I 537 549 Schlacke 92,4 Kalk 4,75 Zement - Gips 2;85 ... 320 403 445 501 - 92.I5 _ - - 5,0 - 2,85... 353 428 479 531 - 87,4 - 4,75 - 5,4 - 2,85 ... 405 470 538 6o3 Die vorstehende Tabelle zeigt die Ergebnisse einer Reihe von Vergleichsversuchen, wobei mit genau denselben Bestandteilen ^gearbeitet wurde.The invention differs from these proposals in that, as additives to the blast furnace slugs, Portland cement and quick lime in small amounts of up to 5% each and gypsum are used at the same time, and these substances, as is known per se, must be intimately mixed be. In-depth tests have shown that this gives a blast furnace cement which surpasses Portland cement in terms of its strength properties and which is particularly characterized by high initial strengths. The new cement is also dimensionally stable in every respect. Another important advantage is the great cheapness of the new cement, which was known almost as a pure Höchofen cement. Compressive strength in kg / cm2 after days 3 7 2 $ Water lag. Combined lag. Pure cement ................................. 40I 537 549 Slag 92.4 lime 4.75 cement-gypsum 2; 85 ... 320 403 445 501 - 92.I5 _ - - 5.0 - 2.85 ... 353 428 479 531 - 87.4 - 4.75 - 5.4 - 2.85 ... 405 470 538 6o3 The table above shows the results of a series of comparative tests, where exactly the same components were used.

Der Versuch 3 zeigt die große überleggenheit des neuen Zementes. Erhöht man die Mengen des zuzusetzenden Portlandzementes, so erhält man zwar weitere Festigkeitssteigerungen, die jedoch in keinem Verhältnis zu den Mehrkosten stehen.Experiment 3 shows the great superiority of the new cement. Elevated if the amounts of Portland cement to be added are used, further increases in strength are obtained, However, they are not in proportion to the additional costs.

Claims (1)

PATENTANSPRUCI3: Hochwertiger Schlackenzement aus Hochofenschlacke mit Zusätzen von Port-Landzement und Kalk, dadurch gekennzeichnet, daß als gemeinsame Zusätze Portlandzement und Ätzkalk, und zwar je bis zu 5 °/0, und außerdem Gips verwendet und sämtliche Stoffe in an sich bekannter Weise innig miteinander gemischt sind.PATENT CLAIM3: High quality slag cement made from blast furnace slag with additions of port land cement and lime, characterized in that as common Additions of Portland cement and quick lime, each up to 5%, and also gypsum used and all substances intimately mixed with one another in a manner known per se are.
DEA46534D Slag cement made from blast furnace slag and Portland cement Expired DE518905C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA46534D DE518905C (en) Slag cement made from blast furnace slag and Portland cement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA46534D DE518905C (en) Slag cement made from blast furnace slag and Portland cement

Publications (1)

Publication Number Publication Date
DE518905C true DE518905C (en) 1931-02-21

Family

ID=6935301

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA46534D Expired DE518905C (en) Slag cement made from blast furnace slag and Portland cement

Country Status (1)

Country Link
DE (1) DE518905C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535709A1 (en) * 1982-11-04 1984-05-11 Setec Geotechnique Setting activator for a mixture based on sands, granulated slag or fly ash.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535709A1 (en) * 1982-11-04 1984-05-11 Setec Geotechnique Setting activator for a mixture based on sands, granulated slag or fly ash.

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