DE542861C - Process for the production of a portland cement or portland cement-like binder with a high alumina content - Google Patents

Process for the production of a portland cement or portland cement-like binder with a high alumina content

Info

Publication number
DE542861C
DE542861C DEG68435D DEG0068435D DE542861C DE 542861 C DE542861 C DE 542861C DE G68435 D DEG68435 D DE G68435D DE G0068435 D DEG0068435 D DE G0068435D DE 542861 C DE542861 C DE 542861C
Authority
DE
Germany
Prior art keywords
portland cement
production
manganese
high alumina
cements
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
DEG68435D
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 DEG68435D priority Critical patent/DE542861C/en
Application granted granted Critical
Publication of DE542861C publication Critical patent/DE542861C/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
    • C04B7/36Manufacture of hydraulic cements in general
    • C04B7/38Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

Verfahren zur Herstellung eines Portlandzementes oder portlandzementähnlichen Bindemittels mit hohem Tonerdegehalt Die Verwendung von hochtonerdehaltigen Zementen zur Herstellung von Beton. ist schon seit langem als ein vorzügliches Mittel erkannt worden, um Baustoffe von hohen Festigkeiten zu erzeugen. Es stellte sich jedoch heraus, daß Portlandzemente mit hohem Tonerdegehalt Sehr schnell abbinden. Es ist schon versucht worden, das Schnellbinden derartiger Zemente durch Zusatz erheblicher Mengen von Gips zu dem fertigen Erzeugnis zu verhindern: Diese Maßregel bleibt bei vielen hochtonerdehaltigen Portlandzementen ohne Erfolg. Andererseits würde aber auch versucht, einen Teil der Tonerde durch Eisenoxyd zu ersetzen; wie dies schon lange bei den Erzzementen in gewissem Umfange durchgeführt wird. Dieses Verfahren führte wohl zu einem gewissen Erfolg, hatte aber eine erhebliche Verminderung der Festigkeiten zur weiteren Folge, so daß es auch .keineswegs als einwandfreie Lösung des Problems der Verhinderung des Schnellbindens betrachtet werden kann. Der Erfinder hat nun schon vor längerer Zeit Mitteilungen über Einflüsse des Mangangehaltes auf die Hydraulizität von Silikaten und Aluminaten (vgl. Stahl u. Eisen 1924, S.1405) gemacht. Bei diesen Versuchen wurde bereits erkannt, d@aß durch Manganzusatz die Festigkeiten von Silikaten verringert werden, die von Aluminaten dagegen nicht. Im weiteren Verfolg der Arbeiten wurde 'nun festgestellt, daß bei Äluminaten auch durch verhältnismäßig hohen Manganzusatz tatsächlich in kein_em-Fall eine Festigkeitsverminderung herbeigeführt wird; daß dieser Zusatz aber die Abbindezeit von Aluminaten verlängert. Man hat somit ein brauchbares Mittel, um , hochtonerdehaltgen Portlandzementen die Neigung zum Schnellbinden zu nehmen und sie in ein brauchbares Erzeugnis mit guten Festigkeiten überzuführen.Process for the production of a portland cement or similar to portland cement High alumina binder The use of high alumina cements for the production of concrete. has long been recognized as an excellent remedy been used to produce building materials of high strength. However, it turned out found that high alumina portland cements set very quickly. It is Attempts have already been made to quickly set such cements by adding considerable amounts To prevent amounts of plaster of paris to the finished product: This measure remains many high alumina Portland cements to no avail. On the other hand, it would also tried to replace part of the clay with iron oxide; like this already has been carried out to a certain extent for a long time with ore cements. This method probably led to some success, but had a significant decrease in Strengths to the further consequence, so that it also .not a flawless solution the problem of preventing quick-tie can be considered. The inventor a long time ago received reports about the influences of the manganese content the hydraulic properties of silicates and aluminates (cf. Stahl and Eisen 1924, p.1405) made. In these experiments it was already recognized that the manganese was added Strengths of silicates are reduced, but not those of aluminates. In the further follow-up of the work it was found that with Äluminati also due to the relatively high addition of manganese, there is actually no reduction in strength in any case is brought about; but that this addition increases the setting time of aluminates. One has thus a useful means to, high alumina Portland cements the Tendency to take quick ties and turn them into a usable product with good ones To transfer strengths.

Es ist zwar schon versucht -worden, manganhaltige Zemente herzustellen. Diese Zemente hatten aber den gleichen oder einen geringeren Tonerdegehalt wie normale Portlandzemente. Da diese manganhaltigen Zemente mitgeringem Tonerdegehalt keineguten Erhärtüngsfähigkeiten haben, sind diese: Patente in der Technik nicht ausgenutzt wor-' den. Erst jetzt nach der Erkenntnis; daß Silikate durch den Manganzusatz geschädigt werden, Aluminate dagegen nicht, ist es möglich, brauchbare manganhaltige Zemente herzustellen. Geeignete manganhaltige Rohstoffe sind nicht nur die verschiedenen Manganerze, sondern auch die manganhaltigen Hocho@enschlacken. Wie bereits ausgeführt worden ist, können unter Verwendung eines Zuschlages manganhaltiger Stoffe hochtonende= hältige Portlandzemente hergestellt werden, welche keine Neigung mehr zum Schnellbinden besitzen. Der Mangangebalt des fertigen Zementes' muß inindektens 2 % betragen, der Tonerdegehalt mindestens 1o % . ' Das neue Verfahren bietet somit nicht nur die Möglichkeit der nutzbringenden Verwendung manganhaltiger Schlacken; sondern es erlaubt auch die Herstellung langsam bindender hochtonerdehaltiger Portlandzemente. Selbstverständlich kann bei diesen Zementen auch ein Teil der Tonerde durch Eisenoxyd ersetzt werden.Attempts have already been made to produce cements containing manganese. However, these cements had the same or a lower alumina content than normal ones Portland cements. Since these low-alumina manganese-containing cements are not good Have hardening capabilities, are these: Patents not used in technology become. Only now after the knowledge; that silicates are damaged by the addition of manganese but not aluminates, it is possible to use manganese-containing cements to manufacture. Suitable raw materials containing manganese are not just the different ones Manganese ores, but also the high o @ @ slags containing manganese. As already stated has been, can high-toning = with the use of a surcharge of manganese-containing substances containing Portland cements are produced, which no longer tend to set quickly own. The manganese content of the finished cement must be 2%, the alumina content at least 1o%. 'The new process therefore not only offers the possibility of beneficial use of manganese-containing slags; but it also allows that Production of slowly binding high alumina Portland cements. Of course In these cements, part of the clay can also be replaced by iron oxide.

Die so -hergestellten portlandzement- oder tonerdezementartigen Bindemittel körnen für sich allein oder vermischt mit Gips oder auch als Zusatzklinker zur Herstellung 'von hüttenzementähnlichen Erzeugnissen verwendet werden; sie können äuch mit künstlicher Hochofenschlacke, TraB, Tonerdezement, Portlandzement u. dgl. zwecks Herstellung von Mischzementen vermahlen werden.The so-produced Portland cement or alumina cement-like binders can be used on their own or mixed with plaster or as additional clinker for production '' are used in products similar to steel cement; you can also use artificial ones Blast furnace slag, TraB, high alumina cement, Portland cement and the like for the purpose of production be ground by mixed cements.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines Portlandzementes oder portland2ementähnlichen Bindemittels mit hohem Tonerdegehalt, dadurch gekennzeichnet, daß in der Zementrohmischung manganhaltige Stoffe in solcher Menge enthalten sind, daß der Mangangehalt (als MnO berechnet) des fertigen Zementes mindestens 20/0 und sein Tonerdegehalt mindestens i o % beträgt.PATENT CLAIM Process for the production of a Portland cement or binder similar to portland2ement with a high alumina content, characterized that the raw cement mixture contains manganese-containing substances in such quantities, that the manganese content (calculated as MnO) of the finished cement is at least 20/0 and its alumina content is at least 10%.
DEG68435D 1926-10-15 1926-10-15 Process for the production of a portland cement or portland cement-like binder with a high alumina content Expired DE542861C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG68435D DE542861C (en) 1926-10-15 1926-10-15 Process for the production of a portland cement or portland cement-like binder with a high alumina content

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG68435D DE542861C (en) 1926-10-15 1926-10-15 Process for the production of a portland cement or portland cement-like binder with a high alumina content

Publications (1)

Publication Number Publication Date
DE542861C true DE542861C (en) 1932-01-29

Family

ID=7134400

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG68435D Expired DE542861C (en) 1926-10-15 1926-10-15 Process for the production of a portland cement or portland cement-like binder with a high alumina content

Country Status (1)

Country Link
DE (1) DE542861C (en)

Similar Documents

Publication Publication Date Title
DE542861C (en) Process for the production of a portland cement or portland cement-like binder with a high alumina content
DE1671201A1 (en) Hydraulic binder compositions that expand as they harden
DE2040484B2 (en) USE OF A BINDING AGENT FOR THE MANUFACTURING OF THERMAL TREATMENT AND / OR STEAM CURING COMPONENTS AND METHOD FOR MANUFACTURING A BINDING AGENT TO BE USED IN THIS WAY
DE1646685B1 (en) Process for the production of a sulphate-resistant cement from steelworks slag
DE2401185C2 (en) binder
DE698857C (en) Process for the production of solid, meltable briquettes from iron and steel chips
DE677597C (en) Process for the production of hydraulic binders, preferably for road and path construction
DE552127C (en) Process for producing a carbon-rich pig iron with less than 0.5% silicon, less than 0.3% manganese and not more than 0.05% sulfur in a coke oven
DE833474C (en) Production of a hydraulic binder
DE204699C (en)
AT153230B (en) Process for the production of hydraulic binders.
DE2011150A1 (en) Organic additives for the rapid setting of concrete
DE234367C (en)
DE662982C (en) Process for increasing the hydraulic properties of slag
DE878621C (en) Process for the production of gypsum slag cement
AT118638B (en) Material for filling potholes or for making road surfaces.
DE2625067C3 (en) Cement-based filling compound with high water-binding agent values
DE626828C (en) Process for removing lime, dolomite or other lime-rich substances
DE406667C (en) Utilization of acidic blast furnace slag
DE1571310A1 (en) Hut cement
DE589514C (en) Process for the production of concrete bodies with particularly high strengths
DE729840C (en) Portland cement sintered binder and process for its production
DE612917C (en) Hydraulically hardening binder
DE653648C (en) Process to increase the improvement effect of Si-material on cements and cement mortars
DE582996C (en) Process for binding sulfates in clays, mortars, etc. like