EP0061135A1 - Utilisation de poussière de scorie de haut-furneau dans la construction de digues - Google Patents

Utilisation de poussière de scorie de haut-furneau dans la construction de digues Download PDF

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Publication number
EP0061135A1
EP0061135A1 EP82102148A EP82102148A EP0061135A1 EP 0061135 A1 EP0061135 A1 EP 0061135A1 EP 82102148 A EP82102148 A EP 82102148A EP 82102148 A EP82102148 A EP 82102148A EP 0061135 A1 EP0061135 A1 EP 0061135A1
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EP
European Patent Office
Prior art keywords
blast furnace
furnace slag
slag sand
sand
weight
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.)
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Application number
EP82102148A
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German (de)
English (en)
Other versions
EP0061135B1 (fr
Inventor
Günther Martens
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Guenther Martens KG
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Guenther Martens KG
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Publication date
Application filed by Guenther Martens KG filed Critical Guenther Martens KG
Priority to DK134782A priority Critical patent/DK154094C/da
Publication of EP0061135A1 publication Critical patent/EP0061135A1/fr
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Publication of EP0061135B1 publication Critical patent/EP0061135B1/fr
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like

Definitions

  • the invention relates to the use of blast furnace slag sand in the construction of dikes.
  • Blast furnace slag which consists essentially of lime, magnesia, alumina and silicates, is produced in large quantities as pig iron when producing pig iron in the blast furnace. If the still liquid slag arriving from the blast furnace is rapidly cooled in water, the granulated blast furnace slag sand or blast furnace sand is produced, which, in contrast to solid blast furnace slag, which is created by slow cooling of the liquid slag stream and has a high degree of crystallinity, is essentially glassy , has an amorphous structure, the degree of amorphicity is usually around 90%.
  • Blast furnace slag sand is an annoying by-product for the iron and steel production in industry. Its disposal and storage are associated with high costs, in particular because a solidification effect occurs after a certain storage time.
  • the consolidation is so strong that about 12 kg of dynamite are required to blast large lumps formed from the blast furnace slag sand, while rock, for example, only requires the use of about 1 kg of dynamite per ton.
  • blast furnace slag sand positively for purposes in which the blast furnace slag sand can be used in large quantities due to its special properties, and the transportation costs should also be relatively low.
  • positive properties of blast furnace slag sand is its hydraulic binding ability, which in the course of time brings about the fastening described above.
  • the transmittance of a blast furnace slag sand layer is so large that surface water may seep into the substrate, so that it is already known that blast furnace slag sand ort scheme p in admixture with clay or Lehmkies as cover soil, for example, for parking or S to use (DE-PS 476 884; DE-OS 27 31 369).
  • blast furnace slags Sand is mainly used in the cement industry for the production of metallurgical cement.
  • the cement industry cannot absorb the significant amounts of blast furnace slag sand that is constantly being produced in the manner desirable for the iron and steel making industry.
  • a dike core is formed by filling a correspondingly excavated formwork with a cement mixture which contains, among other things, blast furnace slag sand as an additive.
  • the water-shielding core formed in this way has the desirable flexibility to be able to compensate for ground movements; the core itself is then covered in the usual way with an earth fill, which is then provided with the conventional vegetation.
  • the blast furnace slag sand is therefore only used in conjunction with cement and leads to a good elasticity of the concrete-like mass produced, as can also be seen, for example, from the "Information sheet on blast furnace slag for base layers, substructure and substructure improvement in road construction" of the Research Association for Roads , 1972 edition.
  • Dikes manufactured in this way like conventional dikes, show the problem that damage to the dyke can easily occur due to impact, that is, holes made by the surf in the embankment embankment, and by overflow, for example as a result of ice accumulation, or by embankment slippage, breakbacks and combat falls caused by wave overturning which often lead to the complete destruction of a dike stretch.
  • Animal pests such as earth rats, mice, moles, rabbits, foxes and others, as well as soil-related processes in the form of settlement, subsidence and shrinkage phenomena can also endanger the existence of the dike.
  • blast furnace slag in hydraulic engineering is also known from "road construction technology" No. 10, 1961, pages 549 et seq., But it is the use of crystalline blast furnace slag which may have been processed into crushed sand before use, the crushed sand then used as an aggregate.
  • DE-OS 17 84 264 relates to the use of stones from molten slag or blast furnace slag in hydraulic engineering, whereby use is made of the fact that the capillaries of the stones formed from the slag are closed, so that water does not take up. To secure the dyke, the stones are laid out in the densest possible packing and poured into the joints with concrete or bitumen.
  • the invention is therefore based on the object of providing a use of the type mentioned at the outset which enables the production of dikes which are reliably secured against damage by water, by soil-related processes such as settlement, subsidence and shrinkage phenomena and in particular by pest infestation.
  • this object is achieved in that an intermediate layer consisting exclusively of blast furnace slag sand is arranged between the sand core and the stick bottom of the dike.
  • a preferred embodiment of the invention provides that the blast furnace slag sand has an amorphous degree of at least 90%.
  • the blast furnace slag sand has the following composition: 0.4% by weight of granules; 13.4 wt% water; 0.19% by weight insoluble residue; 35.20% by weight Si0 2 ; 0.70% by weight Ti0 2 ; 11.40% by weight Al 2 O 3 ; 0.53 wt% FeO; 0.3 wt% MnO; 41.87 wt% CaO; 5.1 wt% MgO; 3.13 wt% CaS; 0.31% by weight Na 2 0; 0.45% by weight K 2 0; 0.02 wt% S0 3 and 0.007 wt% P.
  • a special embodiment of the invention further proposes that the blast furnace slag sand is produced by introducing the liquid slag arriving from the blast furnace at a temperature of at least 1300 ° C. into the focal point of a cold, focusing high-pressure water jet. It can in particular be provided that the liquid slag has a temperature of approximately 1350 ° C. when it is introduced into the focusing water jet.
  • the water jet is generated by a nozzle arrangement with a pressure of approximately 8 bar.
  • an intermediate layer consisting exclusively of blast furnace slag sand is provided in dykes with natural vegetation between the sand core and the clover bottom, the blast furnace slag sand having to have an unusually high degree of amorphousity, the damage to the dyke described above is reliably avoided. There are also no signs of weather from precipitation, frost and drought, which can otherwise lead to the dike bottom being washed away, damage to the turf and to shrinkage cracks in the dike body.
  • blast furnace slag sand can also be used as a paving bed for receiving the paving stones in the area of the stone embankment of dykes.
  • the blast furnace slag sand can of course also be used in a known manner for the construction routes required for dyke construction, since a base layer produced therefrom can be driven on by heavy vehicles even before compacting with a smooth vibratory roller or the like, without substantial deformations occurring.
  • the blast furnace slag sand can of course also be bound with cement, while a feature essential to the invention is precisely in this there is that only blast furnace slag sand is used for the intermediate layer between the sand core and the Kleiboden.
  • blast furnace slag sand instead of cement in dike construction is also advantageous because blast furnace slag sand is extremely inexpensive for the reasons already explained. This is especially true if the transport costs are very low, as is often the case because blast furnaces are usually located on waterways and the blast furnace slag sand can therefore be transported from the blast furnace to the dyke construction site by ship.
  • a blast furnace slag sand intermediate layer 2 is arranged above the sand core 5.
  • a sticky base 3 is applied to this, while a turf base 4 completes the layering of the dike.
  • the blast furnace slag sand intermediate layer also forms a plaster bed on the lake side 8 for embankment stones 11.
  • the covering 7 and / or the subsoil 6 of the road may also consist of blast furnace slag sand.
  • the device shown in FIG. 2 for producing the blast furnace slag sand used according to the invention has a high-pressure nozzle arrangement 10 which generates a high-pressure water jet 14 which is directed to the right in the direction of the arrow 12 in the drawing and which is designed to be focused.
  • the jet pressure of the nozzle arrangement 10 is approximately 8 bar.
  • the water jet 14 is designed to focus and is focused onto a focal point region 16. In these focal p unkt Scheme 16 arriving from the blast furnace having a temperature of ca.1350 ° C liquid slag 18 is initiated.
  • a blast furnace slag sand of this type is particularly favorable for the use according to the invention, not only because of the large reactive surface achieved in this way and the resulting high binding capacity, but also because of the strongly glassy structure, which obviously leads to the formation of fine needles, which are caused by the possible dike pests are spared.
  • the blast furnace slag sand then precipitates downwards in the manner shown in the drawing in the form of the slag sand layer 20 which can be removed by means of a conveyor or the like.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
EP82102148A 1981-03-24 1982-03-17 Utilisation de poussière de scorie de haut-furneau dans la construction de digues Expired EP0061135B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK134782A DK154094C (da) 1981-03-24 1982-03-24 Anvendelse af hoejovnsslaggesand ved dige- eller daemningsbygning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3111471 1981-03-24
DE3111471 1981-03-24

Publications (2)

Publication Number Publication Date
EP0061135A1 true EP0061135A1 (fr) 1982-09-29
EP0061135B1 EP0061135B1 (fr) 1985-01-16

Family

ID=6128115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102148A Expired EP0061135B1 (fr) 1981-03-24 1982-03-17 Utilisation de poussière de scorie de haut-furneau dans la construction de digues

Country Status (2)

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EP (1) EP0061135B1 (fr)
DE (1) DE3261896D1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE476884C (de) * 1927-01-06 1929-05-31 Gerard Johannes Eilers Tennisfeld
DE1784264A1 (de) * 1968-07-24 1971-10-07 Paul Becker Verwendung von Steinen aus Schmelzschlacke im Wasserbau und Strassenbau
DE2812553A1 (de) * 1977-04-19 1978-10-26 Arbed Verfahren zum granulieren von hochofenschlacke und auf diese weise erhaltener schlackensand
DE2729985A1 (de) * 1977-07-02 1979-01-18 Nichireki Chem Ind Co Verfahren zum bau von fugenlosen abdichtungswaenden und kernen von geschuetteten daemmen
DE2731369A1 (de) * 1977-07-12 1979-01-18 Peter W Thielemann Fa Deckerdegemisch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE476884C (de) * 1927-01-06 1929-05-31 Gerard Johannes Eilers Tennisfeld
DE1784264A1 (de) * 1968-07-24 1971-10-07 Paul Becker Verwendung von Steinen aus Schmelzschlacke im Wasserbau und Strassenbau
DE2812553A1 (de) * 1977-04-19 1978-10-26 Arbed Verfahren zum granulieren von hochofenschlacke und auf diese weise erhaltener schlackensand
DE2729985A1 (de) * 1977-07-02 1979-01-18 Nichireki Chem Ind Co Verfahren zum bau von fugenlosen abdichtungswaenden und kernen von geschuetteten daemmen
DE2731369A1 (de) * 1977-07-12 1979-01-18 Peter W Thielemann Fa Deckerdegemisch

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
1263 BITUMEN, Band 38, Nr. 3, 5/6 (DE) J. KRAMER und Th. JANSSEN: "Deichbau an der Ostfriesischen Kuste Unter Anwendung von Asphaltbauweisen" Seiten 81-87 *
CIVIL ENGINEERING-ASCE, Vol. 42, Nr. 4, April 1972, "Slag used to Stop Erosion" Seite 92 *
PROF. DR. ING. K. WINNACKER, PROF. DR. L. KUCHLER: "Chemische Technioligie", Sonderdruck, Band 6, "Metallurgie" 1073, Carl Hanser Verlag, Munchen, Seite 398 *

Also Published As

Publication number Publication date
EP0061135B1 (fr) 1985-01-16
DE3261896D1 (en) 1985-02-28

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