EP1987103A1 - Composition anti-verglas et anti-neige pour pavages des routes - Google Patents

Composition anti-verglas et anti-neige pour pavages des routes

Info

Publication number
EP1987103A1
EP1987103A1 EP06727334A EP06727334A EP1987103A1 EP 1987103 A1 EP1987103 A1 EP 1987103A1 EP 06727334 A EP06727334 A EP 06727334A EP 06727334 A EP06727334 A EP 06727334A EP 1987103 A1 EP1987103 A1 EP 1987103A1
Authority
EP
European Patent Office
Prior art keywords
composition
ice
composition according
total weight
relative
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Withdrawn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
EP06727334A
Other languages
German (de)
English (en)
Inventor
Edvinas Peleckas
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.)
Advanced Technologies (for) Road Applications(at)
Original Assignee
Advanced Technologies (for) Road Applications(at)
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 Advanced Technologies (for) Road Applications(at) filed Critical Advanced Technologies (for) Road Applications(at)
Publication of EP1987103A1 publication Critical patent/EP1987103A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/20—Carboxylic acid amides
    • 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
    • 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

Definitions

  • the present invention relates to a technology for the preparation of bituminous conglomerate road pavings which are self de-icing, namely are such that they do not allow or such that they delay over time the formation of ice adhering to the said paving; this technology therefore makes it possible to eliminate or limit greatly the loss of safety due to the reduction in road-holding and braking properties on the road surface in winter conditions and prevent deterioration of the road structure and pollution of the water and land adjacent to the road bed.
  • the invention concerns a road paving composition, essentially consisting of at least one organic salt of alkaline and/or alkaline earth metals having a molecular weight less than 200 Da and at least one surfactant, achieving the abovementioned action by means of permanent incorporation inside various types of (closed or draining) pavings during different stages of their life (surfaces which are new, recycled or pre-existing on-site) or application onto the surface of the said paving.
  • a road paving composition essentially consisting of at least one organic salt of alkaline and/or alkaline earth metals having a molecular weight less than 200 Da and at least one surfactant, achieving the abovementioned action by means of permanent incorporation inside various types of (closed or draining) pavings during different stages of their life (surfaces which are new, recycled or pre-existing on-site) or application onto the surface of the said paving.
  • Another system is that of providing fixed installations in areas which are most exposed to these conditions so as to allow the automatic spraying of anti-ice liquid salts (generally calcium chloride in an aqueous solution) when required by the local weather conditions; these systems are also costly and localised and in any case give rise to problems of chloride pollution and attack.
  • anti-ice liquid salts generally calcium chloride in an aqueous solution
  • bituminous conglomerates i.e. those with a percentage of empty spaces tending towards zero
  • bituminous conglomerates anti-ice chlorides which, however:
  • the object of the present invention is to provide road surfaces, especially in the case of draining and noise-damping porous pavings, which in adverse weather conditions (as in winter) ensure conditions of maximum safety by preventing entirely the formation of ice due to atmospheric humidity or verglas and/or the snow from settling in the event of moderate snow falls and which, in the event of heavy or prolonged snow falls, make it possible to intervene with an ease and efficiency greater than in the case of normal closed pavings, using conventional salt spreaders and snow ploughs, while achieving a very marked reduction in the amount of aggressive salt used during the periods when ice alone is present and an increase in the probability of continuous management in safe conditions during snow falls, again with a reduction in the amount of salt used, even though less marked than in the case where ice alone is present.
  • the road paving composition which forms the object of the present invention is essentially composed of at least one organic salt of alkaline and/or alkaline earth metals having a molecular weight less than 200 Da, preferably chosen from among sodium and/or calcium acetate and formate, and at least one surfactant.
  • the preferred surfactant is a polyamine alkylamide, in particular a polyamine alkylamide with the formula:
  • n is a prime number between 6 and 10, preferably 8, and m is a prime number between 1 and 6, preferably 4.
  • the organic salt is present in an amount ranging between 90 and 99.8% and said surfactant is present in an amount ranging between 0.2 and 10%, relative to the total weight of the composition.
  • composition may also contain:
  • At least one alkylene glycol preferably chosen from among ethylene and/or propylene glycol, in an amount ranging between 0 and 2%, relative to the total weight of the composition; • at least one siloxane in an amount ranging between 2 and 5%, relative to the total weight of the composition.
  • the composition of the invention may be used as an additive which is incorporated in bituminous conglomerates, especially of the draining type (with an open bituminous composition) in adverse atmospheric conditions (as in winter), and, with a balanced release over the years, prevents or at least lowers, automatically, the formation of ice resulting from atmospheric humidity, or of verglas, or the settling of snow, in the case of snow falls which are not abundant, lowering the freezing point and allowing time for the routine intervention of salt- spreading machines and snow ploughs; said results being achieved without corrosive attack of the metals and the cement conglomerates forming the road.
  • formulation A preferably consists of:
  • alkylene glycol (1-10%); where the inorganic salt is usually a carbonate of alkaline and/or alkaline earth metals, preferably calcium carbonate.
  • the composition in question is normally added to a bituminous preparation essentially consisting of 30 to 60% of the said composition, preferably 45 to 55%, and 40 to 70% of bitumen, preferably 45 to 55%, relative to the total weight of the preparation.
  • This preparation may therefore be used for the composition of a bituminous conglomerate essentially consisting of the said preparation in combination with an inert, inorganic, granulated material, preferably chosen from silica and/or limestone; the preparation is preferably present in an amount ranging between 3 and 10% while the inert, inorganic, granulated material is preferably present in an amount ranging between 90 and 97%, relative to the total weight of the conglomerate.
  • composition of the present invention may be used in the form of a concentrated aqueous solution of a preparation which can be sprayed onto the road surface, both beforehand, if snow falls or ice formation on the asphalt are expected, and after the formation of ice or snow on the road, in order to dissolve them.
  • formulation B preferably consists of:
  • the poly amine alkylamide is an adhesion activator which binds the fatty chain to the bitumen and the polar amine head to the surface of the acidic admixtures (e.g. siliceous RSiOH) in accordance with the following reaction:
  • the preparation present in solution form dissolves the ice and/or snow owing to the interactions described above in case A, with the difference that this time binding of the fatty chain of the surfactant to the bitumen occurs only on the superficial part of the asphalt. It is not necessary, moreover, to add carbonates, since the preparation is present in an aqueous solution.
  • compositions according to the present invention may be performed using the methods known in the art such as, for example, those which are indicated below.
  • the solid components are fed, by means of a suitable conveyor, into a specially designed mixer connected to a suitable dust recirculating capture and elimination system.
  • liquid components are added in succession and mixing is continued to allow adsorption thereof on the powders and/or solid crystals previously mixed.
  • the preparation is discharged into a screw extractor which feeds an annular press where, under particular temperature and pressure conditions, a kind of sintering of the components is performed.
  • materials with a high melting point such as grains of powders coated with additives, treated in this system, owing to the local fusion which combines the individual grains of powder, are converted so that the product is intimately bonded and in each small grain ( ⁇ 10 micron) there is always the same percentage composition.
  • the preparation of the self de-icing conglomerate i.e. supplemented according to the present invention with formulation "A"
  • formulation "A” envisages adding the preparation to the bitumen heated to melting point (about 140-160 0 C) in concentrations which vary from 3 to 6%.
  • bituminous composition of the present invention also includes an inert granulated material
  • the road pavings made with the composition in question prevent or at least delay over time the formation of ice adhering to the said paving, in the event of temperatures below zero, or prevent the formation of ice resulting from "freezing rain”, or also prevent the "adhesion" of falling snow down to temperatures of 4 -
  • compositions according to the present invention differ from the known art as regards the following aspects:
  • bitumen film they are perfectly dispersed in the bitumen film so as to exercise their anti-ice action both on the exterior of the road surface (which makes contact with the tyres) and within the small channels inside the final structure of the draining/noise-damping conglomerates characterized by large internal areas lined with the film of supplemented bitumen, in contact with the water or moisture;

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne la formulation, la préparation et l'utilisation de compositions destinées à la fabrication de pavages pour routes de type anti-verglas, c'est-à-dire telles qu'elles empêchent ou retardent dans le temps la formation de glace adhérant audit pavage, dans l'éventualité de températures de l'air inférieures à zéro ou, pareillement, telles qu'elles empêchent la formation de glace résultant de pluies « verglaçantes » ou empêchent également l'adhérence de la neige tombante. L'invention consiste principalement en une composition contenant essentiellement au moins un sel organique de métaux alcalins et/ou alcalino-terreux ayant un poids moléculaire inférieur à 200 Da et au moins un tensioactif. La technologie a également d'autres utilisations, telles que l'élimination du caractère glissant potentiel provoqué par les sels classiques de fonte de la glace contenant du chlorure de calcium, en cas d'application de quantités excessives, l'élimination de l'action agressive des liquides filtrants sur les véhicules et les structures de routes en ciment renforcé (telles que les ponts, les viaducs, les trous d'homme, les canaux de drainage et analogues), et enfin la réduction de la pollution potentielle des nappes d'eau et du sol due à nouveau au chlorures. La composition en question peut être ajoutée au mélange usuel de formation des pavages pour routes ou peut être pulvérisée sur la surface des routes avant ou après les chutes de neige/la formation de verglas.
EP06727334A 2006-02-22 2006-02-22 Composition anti-verglas et anti-neige pour pavages des routes Withdrawn EP1987103A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2006/000618 WO2007096690A1 (fr) 2006-02-22 2006-02-22 Composition anti-verglas et anti-neige pour pavages des routes

Publications (1)

Publication Number Publication Date
EP1987103A1 true EP1987103A1 (fr) 2008-11-05

Family

ID=37106298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06727334A Withdrawn EP1987103A1 (fr) 2006-02-22 2006-02-22 Composition anti-verglas et anti-neige pour pavages des routes

Country Status (2)

Country Link
EP (1) EP1987103A1 (fr)
WO (1) WO2007096690A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114808482A (zh) * 2022-05-24 2022-07-29 哈尔滨正罡科技开发有限公司 一种融冰雪的防水卷材及其制备方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102050595B (zh) * 2010-10-21 2013-03-27 安徽中铁工程材料科技有限公司 一种高铁用乳化沥青的复合改性剂及其制备方法
CN105017786B (zh) * 2015-06-25 2017-07-18 河北建筑工程学院 聚乙二醇自融雪复合相变材料改性沥青及其制备方法
CN104974535B (zh) * 2015-06-25 2017-07-18 河北建筑工程学院 蓄盐颗粒自融雪复合改性沥青混合料及其制备方法
ITUA20164510A1 (it) * 2016-06-20 2017-12-20 Iterchimica S R L Composizione di additivo antighiaccio per conglomerati bituminosi
CN114994297A (zh) * 2022-06-20 2022-09-02 河南省机场集团有限公司 一种基于融雪性能的低冰点超薄磨耗层融雪残余寿命的预估方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3808250A1 (de) * 1988-03-12 1989-09-21 Veba Oel Ag Strassenbelag aus einem asphaltmischgut mit einer eishemmenden komponente
DE4034792A1 (de) * 1990-11-02 1992-05-07 Hoechst Ag Fluessiges enteisungsmittel auf der basis von acetaten und verfahren zum schmelzen von schnee und eis auf verkehrsflaechen mit hilfe dieses mittels
DE4221661A1 (de) * 1992-07-02 1994-01-05 Hoechst Ag Verfahren zum Schmelzen von Schnee und/oder Eis mit einem Alkalimetallcarboxylat
DE10118685C2 (de) * 2001-04-14 2003-04-24 Clariant Gmbh Enteisungsmittel und Verfahren zum Schmelzen von Schnee und Eis
US7105105B2 (en) * 2002-10-28 2006-09-12 Battelle Memorial Institute Deicing/anti-icing fluids

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007096690A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114808482A (zh) * 2022-05-24 2022-07-29 哈尔滨正罡科技开发有限公司 一种融冰雪的防水卷材及其制备方法
CN114808482B (zh) * 2022-05-24 2022-11-01 哈尔滨正罡科技开发有限公司 一种融冰雪的防水卷材及其制备方法

Also Published As

Publication number Publication date
WO2007096690A1 (fr) 2007-08-30

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