EP0692045A1 - Procede de fabrication d'un agregat synthetique pour des couches de roulement de surfaces reservees a la circulation - Google Patents

Procede de fabrication d'un agregat synthetique pour des couches de roulement de surfaces reservees a la circulation

Info

Publication number
EP0692045A1
EP0692045A1 EP94910330A EP94910330A EP0692045A1 EP 0692045 A1 EP0692045 A1 EP 0692045A1 EP 94910330 A EP94910330 A EP 94910330A EP 94910330 A EP94910330 A EP 94910330A EP 0692045 A1 EP0692045 A1 EP 0692045A1
Authority
EP
European Patent Office
Prior art keywords
component
alkaline earth
earth metal
alkaline
mixture
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.)
Ceased
Application number
EP94910330A
Other languages
German (de)
English (en)
Inventor
Rainer Dr. rer. nat. FÜLLING
Wilhelm Dipl.-Ing. Kämereit
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0692045A1 publication Critical patent/EP0692045A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
    • E01C11/245—Methods or arrangements for preventing slipperiness or protecting against influences of the weather for preventing ice formation or for loosening ice, e.g. special additives to the paving material, resilient coatings
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/021—Agglomerated materials, e.g. artificial aggregates agglomerated by a mineral binder, e.g. cement
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/30—Compositions 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 magnesium cements or similar cements
    • C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
    • C09K3/185—Thawing materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/601—Agents for increasing frost resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction

Definitions

  • the invention relates to a method for producing a
  • Patent document 259 296 B1 known. In this procedure
  • Grain lying on the surface or exposed by the wear on the ceiling reduces the freezing point of water. This can ensure that, for example, road surfaces, in which this material was installed, at temperatures around Freezing point (eg down to approx. - 3 oC) remain ice-free and can easily be cleared of snow in heavy snow, since the snow does not adhere.
  • a disadvantage here is, however, that the salty chippings from surface water over time
  • Matrix body inevitably has a significantly reduced impact resistance compared to the original grit. Investigations have shown that leached chippings in the impact crushing test generally no longer have the required minimum strength values for a road surface. Use of this synthetic grit e.g. in road surface construction can therefore lead to the fact that
  • the amount of salt available in the top layer is, however, a major determinant of the frost temperatures up to which the desired effect lasts. This temperature limit should
  • the object of the invention is therefore a manufacturing method for a synthetic additive according to the generic term of
  • the invention provides that the synthetic additive in
  • Components are finely divided minerals that individually or collectively contain alkaline earth metal oxides and alkaline earth metal hydroxides.
  • Mg and Ca are suitable as alkaline earth elements, the former preferably in the form of MgO.
  • the second component must contain alkaline earth metal chlorides in aqueous solution and can otherwise especially mineral inert substances as an essential component.
  • MgCl 2 (preferably as a water-containing salt or as a solution) is particularly preferred as the alkaline earth chloride.
  • the proportions of the two components can fluctuate in a relatively wide range, based on the alkaline earth active substances contained in each case.
  • the permissible fluctuation range for the ratio of the first to the second component is approximately between 5: 1 and 1: 1 based on the anhydrous salt.
  • filling materials in particular sand and / or stone powder (preferably limestone powder) and / or glass powder and / or glass fiber material or to use from the outset as a first component a material that already contains significant amounts of filler material.
  • the proportion of the filling materials is preferably 0.5 to 3 times based on the amount of alkaline earth oxides and alkaline earth hydroxides.
  • Semi-fired dolomite is particularly suitable for the first component.
  • the components used for the mixture may also contain minor proportions of other salts such as NaCl as accompanying substances, without this leading to impairments.
  • extraordinarily hard and solid artificial rock which is preferably crushed in a conventional manner to fine chippings and / or crushed sand.
  • Traffic areas should inhibit, even after the release of the active ingredients responsible for this (eg MgCl 2 ) by an unusually high Strength. While, for example, in the case of a grit of grain which was produced by the known generic method, after
  • Additive is characterized in an advantageous manner in that the grit or crushed sand grains are not polishable, that is to say allow the top layer to have a very good grip. Due to its high mechanical strength, this material is also well suited for carrying out surface treatments on top layers. In this use, the long-term mechanical stability is particularly important, as in particular grit grains protrude much more from the binder compound and are therefore exposed to the external attack correspondingly more intensely than is the case with direct installation in the top layer, where the surroundings of the individual Grain can have a supporting effect. Especially based on MgO and MgCl 2
  • the aggregates produced are characterized by an excellent affinity for bitumen and are therefore very easy to process.
  • Grain fraction of 0.09 - 2.0 mm 40% by weight (of which 50% by volume from MgO / MgCl 2 - according to the invention
  • Binder B80, binder content: 6.9% by weight
  • a stone mastic asphalt made from a mixture of minerals with grains of gravel and road bitumen was used as a binder
  • the mix was composed as follows:
  • Grain fraction over 2 mm 75% by weight (of which 33% by volume from MgO / MgCl 2 mineral raw material according to the invention)
  • Binder B65, binder content: 7% by weight
  • a surface treatment of an asphalt concrete road surface was carried out.
  • a binder 1.3-1.8 kg / m 2 of an unstabilized cationic emulsion with 60% by weight bitumen was first applied uniformly by machine. Immediately afterwards, 12-16 kg / m 2 of fine chippings were also spread and rolled in by machine. This fine chippings consisted of 40% by volume of the invention
  • the machine was applied in the cold state as a thin layer in an amount of 5 kg / m 2 .
  • composition of the sludge was as follows: Binder: 12% by weight of an unstable cationic
  • Emulsion with 60% by weight bitumen Emulsion with 60% by weight bitumen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Architecture (AREA)
  • Road Paving Structures (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un agrégat synthétique contenant une substance empêchant la formation de verglas, qui s'utilise dans la réalisation et le traitement superficiel de couches de roulement de surfaces réservées à la circulation. Selon ce procédé, on produit un mélange minéral durcissable. La pierre artificielle obtenue après durcissement est concassée à la grosseur de grain voulue et est calibrée si besoin est. Afin de pouvoir obtenir un matériau granuleux, ayant une stabilité sensiblement accrue et pouvant être utilisée aussi bien dans la réalisation de revêtements de surfaces réservées à la circulation que dans leur traitement superficiel, l'invention suggère que le mélange soit composé d'un premier constituant contenant de l'oxyde alcalino-terreux à fines particules et/ou de l'hydroxyde alcalino-terreux et d'un second constituant contenant du chlorure alcalino-terreux dans une solution aqueuse. Le rapport en poids de la proportion d'oxyde alcalino-terreux et d'hydroxyde alcalino-terreux du premier constituant à la proportion de chlorure alcalino-terreux du second constituant est de l'ordre de 5:1 à 1:1.
EP94910330A 1993-04-01 1994-03-08 Procede de fabrication d'un agregat synthetique pour des couches de roulement de surfaces reservees a la circulation Ceased EP0692045A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4311016A DE4311016A1 (de) 1993-04-01 1993-04-01 Verfahren zur Herstellung eines synthetischen Zuschlagstoffs für Deckschichten von Verkehrsflächen
DE4311016 1993-04-01
PCT/DE1994/000270 WO1994023131A1 (fr) 1993-04-01 1994-03-08 Procede de fabrication d'un agregat synthetique pour des couches de roulement de surfaces reservees a la circulation

Publications (1)

Publication Number Publication Date
EP0692045A1 true EP0692045A1 (fr) 1996-01-17

Family

ID=6484681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94910330A Ceased EP0692045A1 (fr) 1993-04-01 1994-03-08 Procede de fabrication d'un agregat synthetique pour des couches de roulement de surfaces reservees a la circulation

Country Status (4)

Country Link
EP (1) EP0692045A1 (fr)
JP (1) JPH08508232A (fr)
DE (1) DE4311016A1 (fr)
WO (1) WO1994023131A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017221391B3 (de) 2017-11-29 2019-03-07 Marie Müller Verfahren zum Herstellen einer Betonmischung, Betonmischung, Betonformteil und dessen Verwendung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT348916B (de) * 1973-06-13 1979-03-12 Plastiroute Sa Mischgut zur herstellung eines eine eisbildung hemmenden und schnee tauenden strassenbelags
DE3404271A1 (de) * 1984-02-03 1985-08-08 Mannesmann AG, 4000 Düsseldorf Feinkorngemisch
US5004505A (en) * 1988-11-04 1991-04-02 Cac, Inc. Magnesium oxychloride cement compositions and methods for manufacture and use
NO176812C (no) * 1989-10-13 1995-05-31 Mannesmann Ag Fremgangsmåte for fremstilling av en finkornblanding som viser hydrofobe egenskaper
US5076850A (en) * 1989-10-23 1991-12-31 E. I. Du Pont De Nemours And Company Process for treating metal chlorides
CS113591A3 (en) * 1991-04-22 1992-11-18 Pavol Ing Kovac Antifreeze ingredient into bituminous wearing courses of roads andpavements
DE4129621A1 (de) * 1991-09-06 1993-03-11 Gruenau Gmbh Chem Fab Pulverfoermiger hydrophober fueller fuer bitumengebundene verkehrsflaechen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9423131A1 *

Also Published As

Publication number Publication date
JPH08508232A (ja) 1996-09-03
DE4311016A1 (de) 1994-10-06
WO1994023131A1 (fr) 1994-10-13

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