EP0659202A1 - Procede pour la fabrication d'un sable de concassage et/ou de gravillons saliferes synthetiques - Google Patents

Procede pour la fabrication d'un sable de concassage et/ou de gravillons saliferes synthetiques

Info

Publication number
EP0659202A1
EP0659202A1 EP93918985A EP93918985A EP0659202A1 EP 0659202 A1 EP0659202 A1 EP 0659202A1 EP 93918985 A EP93918985 A EP 93918985A EP 93918985 A EP93918985 A EP 93918985A EP 0659202 A1 EP0659202 A1 EP 0659202A1
Authority
EP
European Patent Office
Prior art keywords
salt
mortar
grain size
parts
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.)
Ceased
Application number
EP93918985A
Other languages
German (de)
English (en)
Inventor
Wilhelm Kämereit
Alois Boes
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 EP0659202A1 publication Critical patent/EP0659202A1/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
    • 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

Definitions

  • the invention relates to a method for producing a
  • Patent document Z5S 296 B1 known. In this procedure
  • Freezing point (e.g. 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
  • DE-A 29 23 939 describes the production of a salt-containing filler as an additive for road surface construction, a fine-pored mineral (red filler) being used as the basis.
  • the red filler is treated with a saline solution so that the solution penetrates into the cavities of the red filler and the added salt is deposited therein by drying.
  • the filler is made hydrophobic with the aid of silicon compounds.
  • the binder is not cement, but a hardenable synthetic resin, so that there is no water-containing mortar at any time during the production process.
  • the Feinkorngemsich according to DE 3404 271 AI is produced by dry grinding several components together. In a variant of this method, cement is added to the mixture. However, this measure only serves to bind any small amounts of moisture that may be present and to reliably maintain the flowability of the fine-grain mixture until it is used. A water-based mortar is not present either in the production or in the use of this fine grain mixture when installed in traffic areas.
  • the object of the invention is therefore a manufacturing process for a synthetic salt-containing chippings according to the generic term of
  • the invention provides for a mortar mixture with salt mixed with water (preferably NaCl or KCl) with a grain size of at most 0.5 mm, preferably at most 0.2 mm, and from mineral fines with a grain size of at most 1 mm, preferably at most 0.5 mm, and cement.
  • the mineral fines can, for example, in the form of sand or rock flour (in particular
  • Limestone powder can be added. This addition can also be carried out in a moist state, so that 5 grinding sludges which are produced in stone processing and which in themselves have to be disposed of at low cost are added to this Purpose are easily usable. It is particularly important that the salt granules have been made hydrophobic before the mortar mixture has been prepared.
  • the proportion of the hydrophobicized salt can advantageously be in the form of a fine grain mixture beforehand, for example according to EP 0 422 753,
  • the "salt fraction" can also be a certain mineral fraction
  • the amount of mixing water to be added should be kept as low as possible in order to produce a particularly hard grit.
  • the water / cement factor can range from 0.3 to 0.6. Lower values lead to even better results.
  • the mortar produced is at least cured to a certain degree before it is crushed to the desired size of the grit in a stone crusher.
  • a grain size of at most 5.6 mm is preferred.
  • the shredding can take place as soon as the mortar is dry and sufficient
  • a complete hardening is not necessary before the shredding. It is only necessary that a strength is achieved at which an undesirably high fine fraction no longer arises during the comminution. The final hardening can easily take place even in the crushed state. It is advisable to classify the shredded product, whereby the fine fraction is separated out. Grain size fractions in the range 0.09-5.6 mm are preferably sought for the synthetic grit.
  • a fiber material in particular glass fiber material, is added to the mortar during mixing. It is particularly expedient to use a recycling material for this purpose, which is obtained by shredding glass-fiber-reinforced plastic waste. Only the coarse fraction with a fiber length of 2 - 8 mm should be used, especially since the fine fraction again for the
  • composition of the mortar mixture is expediently in the following areas:
  • Fiber material are added to the mortar mixture.
  • the usability of the synthetic chippings produced according to the invention can be improved further by the hydrophobized salt (eg NaCl, KCl) being mixed with a Corrosion protection agent is treated.
  • a Corrosion protection agent eg NaCl, KCl
  • Chippings produced according to the invention can also be used together with a filler, which also has a freezing point-lowering effect, in a top layer covering. This allows the effect of ice formation inhibition to be achieved at considerably lower temperatures
  • the grit produced according to the invention could also be used for cover layers other than bitumen-bound,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Cosmetics (AREA)

Abstract

Un mélange pour mortier, préparé avec de l'eau à gâcher, s'utilise pour les couches d'usure bitumées de surfaces de circulation. Il est constitué de sel (NaCl ou KCl de préférence) dont la grosseur des grains ne dépasse pas 0.5 mm, d'éléments minéraux fins dont la grosseur des grains ne dépasse pas 1 mm, et de ciment.
EP93918985A 1992-09-09 1993-09-08 Procede pour la fabrication d'un sable de concassage et/ou de gravillons saliferes synthetiques Ceased EP0659202A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4230545 1992-09-09
DE19924230545 DE4230545C1 (de) 1992-09-09 1992-09-09 Verfahren zur Herstellung eines synthetischen salzhaltigen Brechsandes und/oder Splitts
PCT/DE1993/000848 WO1994005740A1 (fr) 1992-09-09 1993-09-08 Procede pour la fabrication d'un sable de concassage et/ou de gravillons saliferes synthetiques

Publications (1)

Publication Number Publication Date
EP0659202A1 true EP0659202A1 (fr) 1995-06-28

Family

ID=6467801

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93918985A Ceased EP0659202A1 (fr) 1992-09-09 1993-09-08 Procede pour la fabrication d'un sable de concassage et/ou de gravillons saliferes synthetiques

Country Status (8)

Country Link
EP (1) EP0659202A1 (fr)
JP (1) JPH08501116A (fr)
AU (1) AU4943993A (fr)
CA (1) CA2144150A1 (fr)
DE (1) DE4230545C1 (fr)
FI (1) FI951075A0 (fr)
NO (1) NO950872L (fr)
WO (1) WO1994005740A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19518111A1 (de) * 1995-05-17 1996-11-21 Mahmood Anwer Khan Herstellung von Baumaterialien auf der Basis von Steinsalz
DE19638743C2 (de) * 1996-09-10 1998-11-26 Mannesmann Ag Körniges Material, dessen Herstellung und Verwendung
DE19843193A1 (de) 1998-09-15 2000-03-30 Mannesmann Ag Verfahren zur Herstellung eines mit einem Bindemittel umhüllten Abstreusplitts
ES2507965B1 (es) * 2013-04-15 2015-07-22 Corporate Planning Results S.L. Pavimento anti-hielo
CN108285648B (zh) * 2018-02-07 2020-07-10 华东交通大学 一种路面沥青除冰抗剥离添加剂及制备方法
CN117822371B (zh) * 2024-03-05 2024-06-04 中国电建集团昆明勘测设计研究院有限公司 一种道路的防结冰方法、装置、设备及存储介质

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4094686A (en) * 1974-06-07 1978-06-13 Plastiroute S.A. Road-surface additive for preventing ice and melting snow
US4296207A (en) * 1979-06-11 1981-10-20 Mannesmann Aktiengesellschaft Antifreeze protection of roads
DE2923939C2 (de) * 1979-06-11 1986-09-11 Mannesmann AG, 4000 Düsseldorf Die Frostwirkung hemmender Zuschlagstoff für eine bitumengebundene Deckschicht einer Straße und Verfahren zur Herstellung eines ersten Zuschlagstoff-Gemischanteils beziehungsweise des vollständigen Zuschlagstoffs
DE3404271A1 (de) * 1984-02-03 1985-08-08 Mannesmann AG, 4000 Düsseldorf Feinkorngemisch
DD271347A1 (de) * 1988-03-31 1989-08-30 Bauakademie Ddr Gemisch fuer frostunempfindliche verkehrsflaechen
NO176812C (no) * 1989-10-13 1995-05-31 Mannesmann Ag Fremgangsmåte for fremstilling av en finkornblanding som viser hydrofobe egenskaper
CS113591A3 (en) * 1991-04-22 1992-11-18 Pavol Ing Kovac Antifreeze ingredient into bituminous wearing courses of roads andpavements

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9405740A1 *

Also Published As

Publication number Publication date
NO950872D0 (no) 1995-03-07
NO950872L (no) 1995-03-07
DE4230545C1 (de) 1994-03-24
FI951075A (fi) 1995-03-08
JPH08501116A (ja) 1996-02-06
CA2144150A1 (fr) 1994-03-17
WO1994005740A1 (fr) 1994-03-17
FI951075A0 (fi) 1995-03-08
AU4943993A (en) 1994-03-29

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