DE2813013A1 - Steam hardened gas concrete - made from cement, lime, silicate-contg. additive and calcium sulphate - Google Patents

Steam hardened gas concrete - made from cement, lime, silicate-contg. additive and calcium sulphate

Info

Publication number
DE2813013A1
DE2813013A1 DE19782813013 DE2813013A DE2813013A1 DE 2813013 A1 DE2813013 A1 DE 2813013A1 DE 19782813013 DE19782813013 DE 19782813013 DE 2813013 A DE2813013 A DE 2813013A DE 2813013 A1 DE2813013 A1 DE 2813013A1
Authority
DE
Germany
Prior art keywords
silicate
lime
cement
calcium sulphate
contg
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.)
Withdrawn
Application number
DE19782813013
Other languages
German (de)
Inventor
Heinz Doblinger
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.)
Hebel Gasbetonwerk GmbH
Original Assignee
Hebel Gasbetonwerk GmbH
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 Hebel Gasbetonwerk GmbH filed Critical Hebel Gasbetonwerk GmbH
Priority to DE19782813013 priority Critical patent/DE2813013A1/en
Publication of DE2813013A1 publication Critical patent/DE2813013A1/en
Withdrawn legal-status Critical Current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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/18Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type

Abstract

Steam-hardened gas concrete is prepd. from a mixt. of lime and cement as binder with a preponderant amt. of lime, silicate-contg. additive(s) and sufficient calcium sulphate(s) that the final total sulphate content, (expressed as SO3) is 2-5 wt.% of the ignition loss free dry material; (part of) the components lime, cement, silicate-contg. additive and calcium sulphate are milled together before processing the mixt. into steam hardened gas concrete. Concrete with improved properties is obtd. by milling (part of) the silicate-contg. additive and calcium sulphate together. Partic. good results are obtd. if the whole of the silicate-contg. additive and calcium sulphate are milled together.

Description

Patentanmeldung PPatent application P

(Zusatz zu Patentanmeldung P 27 09 858.4-45) Verfahren zur Herstellung von dampfgehärtetem Gasbeton Gegenstand der Patentanmeldung P 27 O9 858.4-45, auf deren Offenbarung vollinhaltlich Bezug genommen wird und die Bestandteil der vorliegenden Anmeldung ist, ist ein Verfahren zur Herstellung von dampfgehärtetem Gasbeton, wobei eine Rohmischung aus Kalk und Zement als Bindemittel mit einem den Zementanteil übersteigenden Kalkanteil, mindestens einem silikathaltigen Zuschlag und mindestens einem Calciumsulfat hergestellt wid diese Rohmischung zu dampfgehärtetem Gasbeton weiterverarbeitet wird, das' dadurch gekennzeichnet ist, daß man Calciumsulfat in solchen Mengen zusetzt, daß der Gesamtsulfatgehalt des Endprodukts, ausgedrückt als SO3, 2 bis 5 Gew.-%, bezogen auf die glühverlustfreie Trockenmasse, beträgt und wenigstens eine Teilmenge der Komponenten Kalk, Zement, silikathaltiger Zuschlag und Calciumsulfat gemeinsam vermahlt.(Addition to patent application P 27 09 858.4-45) Method of production of steam-hardened aerated concrete is the subject of patent application P 27 O9 858.4-45 the disclosure of which is incorporated by reference in its entirety and is part of the present Registration is is a process for the production of vapor-hardened aerated concrete, wherein a raw mixture of lime and cement as a binder with a cement component excess lime content, at least one silicate-containing aggregate and at least A calcium sulphate is used to produce this raw mixture for vapor-hardened aerated concrete is further processed, which 'is characterized in that calcium sulfate is in added in amounts such that the total sulfate content of the final product is expressed as SO3, is 2 to 5% by weight, based on the dry matter free from ignition loss and at least a subset of the components lime, cement, silicate-containing aggregate and calcium sulfate ground together.

Durch die vorstehend beschriebenen Maßnahmen (Zusetzen von Calciumsulfat in den vorstehend angegebenen Mengen und gemeinsames Vermahlen wenigstens einer Teilmenge der Somponenten Kalk, Zement, silikathaltiger Zuschlag und Calciumsulfat) werden Gasbeton-Endprodukte mit vorzüglichen Druckfestigkeiten erhalten. Ein weiterer Vorteil ist, daß sich durch die erzielten hohen Druckfestigkeiten der Bindemittelanteil verringern läßt, wodurch beträchtliche Kosteneinsparungen erreicht werden.By the measures described above (adding calcium sulfate in the amounts given above and grinding at least one together Subset of the components Lime, cement, silicate-containing aggregate and calcium sulphate) become aerated concrete end products with excellent compressive strengths obtain. Another advantage is that the high compressive strengths achieved the amount of binder can be reduced, resulting in considerable cost savings can be achieved.

Es hat sich nunmehr gezeigt, daß die vorstehend beschriebenen vorzüglichen Eigenschaften im wesentlichen auch dann schon erreicht werden, wenn wenigstens eine Teilmenge wenigstens der Komponenten silikathaltiger Zuschlag und Calciumsulfat miteinander vermahlen werden.It has now been shown that the above-described excellent Properties are essentially achieved even if at least one Partial amount of at least the components of silicate-containing aggregate and calcium sulfate be ground together.

Die vorliegende Erfindung betrifft somit eine Abänderung des Verfahrens nach Patent ....,.,. (Patentanmeldung P 27 09 858.4-45) zur Herstellung von dampfgehärtetem Gasbeton, wobei eine Rohmischung aus Kalk und Zement als Bindemittel mit einem den Zementanteil übersteigenden Kalkanteil, mindestens einem silikathaltigen Zuschlag und mindestens einem Calciumsulfat hergestellt wird, wobei Calciumsulfat in solchen Mengen zugesetzt wird, daß der Gesamtsulfatgehalt des Endprodukts, ausgedrückt als SO3, 2 bis 5 Gew.-%, bezogen auf die glühverlustfreie Trockenmasse, beträgt und wenigstens eine Teilmenge der Komponenten Kalk, Zement, silikathaltiger Zuschlag und Calciumsulfat gemeinsam vermahlen wird und wobei diese Rohmischung zu dampfgehärtetem Gasbeton weiterverarbeitet wird, das dadurch gekennzeichnet ist, daß man wenigstens eine Teilmenge wenigstens der Komponenten silikathaltiger Zuschlag und Calciumsulfat gemeinsam vermahlt.The present invention thus relates to a modification of the method according to patent ....,.,. (Patent application P 27 09 858.4-45) for the production of steam-hardened Aerated concrete, with a raw mixture of lime and cement as a binding agent with one of the Lime content exceeding cement content, at least one silicate-containing aggregate and at least one calcium sulfate is produced, calcium sulfate in such Amounts added that the total sulfate content of the final product, expressed as SO3, 2 to 5% by weight, based on the dry matter free from ignition loss, is and at least a subset of the components lime, cement, silicate-containing aggregate and calcium sulphate is ground together and this raw mixture becomes steam-hardened Aerated concrete is further processed, which is characterized in that at least one a subset of at least the components silicate-containing aggregate and calcium sulfate ground together.

Besonders gute Ergebnisse werden erhalten, wenn man die Gesamtmenge an silikathaltigem Zuschlag und Calciumsulfat gemeinsam vermahlt.Particularly good results are obtained when looking at the total amount ground together with silicate-containing aggregate and calcium sulphate.

Claims (2)

Patentanmeldung P (Zusatz zu Patentanmeldung P 27 09 858.4-45) Patentansprüche 1. Abänderung des Verfahrens nach Patent ....... (Patentanmeldung P 27 09 858.4-45) zur Herstellung von dampfgehärtetem Gasbeton, wobei eine Rohmischung aus Kalk und Zement als Bindemittel mit einem den Zement anteil übersteigenden Kalkanteil, mindestens einem silikathaltigen Zuschlag und mindestens einem Calciumsulfat hergestellt wird, wobei Calciumsulfat in solchen Mengen zugesetzt wird, wobei Calciumsulfat in solchen Mengen zugesetzt wird, daß der Gesamtsulfatgehalt des Endprodukts, ausgedrückt als SO3, 2 bis 5 Gew.-%, bezogen auf die glühverlustfreie Trockenmasse, beträgt und wenigstens eine Teilmenge der Komponenten Kalk, Zement, silikathaltiger Zuschlag und Calciumsulfat gemeinsam vermahlen wird und wobei diese Rohmischung zu dampfgehärtetem Gasbeton weiterverarbeitet wird, dadurch gekennzeichnet, daß man wenigstens eine Teilmenge wenigstens der Komponenten silikathaltiger Zuschlag und Calciumsulfat gemeinsam vermahlt.Patent application P (addition to patent application P 27 09 858.4-45) claims 1. Modification of the process according to patent ....... (patent application P 27 09 858.4-45) for the production of vapor-hardened aerated concrete, a raw mixture of lime and Cement as a binder with a proportion of lime exceeding the cement, at least a silicate-containing aggregate and at least one calcium sulphate is produced, calcium sulfate being added in such amounts, calcium sulfate being added in such amounts Amounts added that the total sulfate content of the final product, expressed as SO3, 2 to 5% by weight, based on the dry matter free from ignition loss, is and at least a subset of the components lime, cement, silicate-containing aggregate and calcium sulphate is ground together and this raw mixture becomes steam-hardened Aerated concrete is further processed, characterized in that at least one Partial amount of at least the components of silicate-containing aggregate and calcium sulfate ground together. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man je Gesamtmenge an silikathaltigem Zuschlag und Calciumsulfat gemeinsam vermahlt.2. The method according to claim 1, characterized in that one per total amount ground together with silicate-containing aggregate and calcium sulphate.
DE19782813013 1978-03-23 1978-03-23 Steam hardened gas concrete - made from cement, lime, silicate-contg. additive and calcium sulphate Withdrawn DE2813013A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782813013 DE2813013A1 (en) 1978-03-23 1978-03-23 Steam hardened gas concrete - made from cement, lime, silicate-contg. additive and calcium sulphate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782813013 DE2813013A1 (en) 1978-03-23 1978-03-23 Steam hardened gas concrete - made from cement, lime, silicate-contg. additive and calcium sulphate

Publications (1)

Publication Number Publication Date
DE2813013A1 true DE2813013A1 (en) 1979-09-27

Family

ID=6035394

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782813013 Withdrawn DE2813013A1 (en) 1978-03-23 1978-03-23 Steam hardened gas concrete - made from cement, lime, silicate-contg. additive and calcium sulphate

Country Status (1)

Country Link
DE (1) DE2813013A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309402A1 (en) * 1983-03-16 1984-09-20 Sicowa Verfahrenstechnik für Baustoffe GmbH & Co KG, 5100 Aachen METHOD FOR PRODUCING BLOCK-SHAPED WALL BUILDING MATERIALS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309402A1 (en) * 1983-03-16 1984-09-20 Sicowa Verfahrenstechnik für Baustoffe GmbH & Co KG, 5100 Aachen METHOD FOR PRODUCING BLOCK-SHAPED WALL BUILDING MATERIALS

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