DE1796133C - Method for producing a building block, in particular a hollow block or solid block - Google Patents
Method for producing a building block, in particular a hollow block or solid blockInfo
- Publication number
- DE1796133C DE1796133C DE1796133C DE 1796133 C DE1796133 C DE 1796133C DE 1796133 C DE1796133 C DE 1796133C
- Authority
- DE
- Germany
- Prior art keywords
- block
- percent
- weight
- producing
- hollow
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000007787 solid Substances 0.000 title description 2
- 239000000203 mixture Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 4
- 239000003077 lignite Substances 0.000 claims description 4
- 239000008262 pumice Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002956 ash Substances 0.000 claims 2
- 239000011449 brick Substances 0.000 description 1
- 239000011455 calcium-silicate brick Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Description
I 796I 796
Das Hauptpa'ent is» auf einen Baustein, insbesondere einen Hohlblock- oder Vollstein, gerichtet, der Braunkohlenfilterasche und einen Zuschlag aus Hüttenbims (geschäumter Hochofenschlacke) enthält und dem in an sich bekannter Weise etwa 5 °/o Zement beigemischt sind.The main patent is »on a building block, in particular a hollow block or solid stone, straightened, the brown coal filter ash and an aggregate Hüttenbims (foamed blast furnace slag) contains and in a known manner about 5% Cement are mixed in.
Die vorliegende Erfindung gibt ein besonders vorteilhaftes Verfahren zur Herstellung derartiger Bausteine an. Sie besteht darin, daß einem Gemisch aus 43 Gewichtsprozent Braunkohlenfilterasche, etwa 5 Gewichtsprozent Zement und etwa 52 Gewichtsprozent Hüttenbims 6 Gewichtsprozent Wasser, bezogen auf das Gemisch, zugesetzt werden, worauf aus diesem Gemisch Steinrohlinge unter 300 kg/cm2 Preßdruck geformt und unter Dampf bei 0,5 atü und 105° C bis zu 8 Stunden gehärtet werden.The present invention specifies a particularly advantageous method for producing such building blocks. It consists in adding to a mixture of 43 percent by weight of brown coal filter ash, about 5 percent by weight of cement and about 52 percent by weight of pumice 6 percent by weight of water, based on the mixture, whereupon stone blanks are formed from this mixture under 300 kg / cm 2 pressure and with steam 0.5 atm and 105 ° C for up to 8 hours.
Es wurde gefunden, daß die nach diesem Verfahren hergestellten Bausteine überraschend hohe Festigkeiten aufweisen und ohne weiteres in Konkurrenz zu Ziegelsteinen, Kalksandsteinen und Betonsteinen treten können. Für die hohe Festigkeit ist neben dem Preßdruck vor allem auch der richtige Feuchtigkeitsgehalt der Mischung maßgebend. Überschreitet oder unterschreitet der Feuchtigkeitsgehalt den angegebenen Wert, so haben die fertigen Steine geringere Festigkeitswerte als die in erfindungsgemäßer Weise mit einem i;euchtigkeitsanteil von 6% hergestellten Bausteine.It has been found that the building blocks produced by this process have surprisingly high strengths and can easily compete with bricks, sand-lime bricks and concrete blocks. In addition to the pressing pressure, the correct moisture content of the mixture is decisive for the high strength. If the moisture content exceeds or falls below the specified value, the finished stones have lower strength values than those in the manner according to the invention with an i ; Moisture content of 6% manufactured building blocks.
Die an sich bekannte Dampfhärtung hat sich für die Herstellung des neuen Steines als außerordentlich vorteilhaft erwiesen. Da die Steine schon nach relativ kurzer Zeit Festigkeiten erhalten, welche ohne weiteres ihre Verladung erlauben, genügen relativ kurze Härtezeiten. Die Härtung erfolgt vorteilhaft bei 0,5 atü und 105° C, weil dann im Verhältnis zur erzielten Festigkeit eine optimal geringe Wärmemenge benötigt wird.The steam hardening, which is known per se, has proven to be extraordinary for the production of the new stone proved beneficial. Since the stones acquire strength after a relatively short time, some without further allow their loading, relatively short curing times are sufficient. The hardening takes place advantageously at 0.5 atü and 105 ° C, because then an optimally low amount of heat in relation to the strength achieved is needed.
Claims (1)
Family
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