DK171045B1 - Process for cold regeneration of the upper layers of roadways - Google Patents
Process for cold regeneration of the upper layers of roadways Download PDFInfo
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- DK171045B1 DK171045B1 DK603887A DK603887A DK171045B1 DK 171045 B1 DK171045 B1 DK 171045B1 DK 603887 A DK603887 A DK 603887A DK 603887 A DK603887 A DK 603887A DK 171045 B1 DK171045 B1 DK 171045B1
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- 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
- C08L95/005—Aqueous compositions, e.g. emulsions
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- 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
- E01C11/005—Methods or materials for repairing pavings
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- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing paving
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Abstract
Description
DK 171045 B1DK 171045 B1
Den foreliggende opfindelse angår en fremgangsmåde til koldregenerering af materialer, som danner de øvre lag af vejbaner, til genanvendelse som basislag, justerende lag eller bærende lag på vejbaner.The present invention relates to a method for cold regenerating materials forming the upper layers of roadways for reuse as base layers, adjusting layers or load bearing layers.
5 Til reparation af en vejbane foretrækkes det at fjerne de øvre lag derfra for at sænke og/eller udjævne overfladen og således forberede den til modtagelse af en ny belægning. Det er naturligvis interessant at genvinde det materiale, som danner sådanne øvre lag, efter fræsning og muligvis knusning.5 For repairing a roadway, it is preferable to remove the upper layers therefrom to lower and / or smooth the surface and thus prepare it for receiving a new coating. Of course, it is interesting to recover the material that forms such upper layers after milling and possibly crushing.
10 De således opnåede fræsede og muligvis knuste materialer består af aggregater af det anvendte lejringsmateriale, som er belagt med ældet bindemiddel. De kan udvindes for at undergå et vist antal operationer, før de igen anvendes på vejbanen.The milled and possibly crushed materials thus obtained consist of aggregates of the bearing material used which are coated with aged binder. They can be extracted to undergo a certain number of operations before being re-used on the roadway.
For at give disse fræsede materialer de krævede egenskaber 15 til brug som et vejbanelag er det allerede blevet foreslået at inkorporere produkter, som har bindemiddelfunktionen til fælles, idet disse produkter er valgt blandt almindeligt anvendte bindemidler, dvs. bitumenemulsioner, flydendegjort bitumen, cement, kalk, flyveaske og granulerede slagger.In order to give these milled materials the required properties 15 for use as a roadway layer, it has already been proposed to incorporate products having the binder function in common, these products being selected from commonly used binders, ie. bitumen emulsions, liquefied bitumen, cement, lime, fly ash and granulated slag.
20 En sådan operation kan udføres i kulde som beskrevet i den europæiske patentansøgning nr. 182.748, hvori beskrives en fremgangsmåde til koldfræsning af øvre lag af en vejbanebelægning, og hvor et flydende materiale inkorporeres i en forudbestemt mængde i det fræsede materiale, idet denne mængde 2 5 beregnes til i en enkelt operation at give et materiale med et optimalt indhold af komprimeringsvæske. Dette flydende materiale kan være et vandigt materiale, et organisk materiale eller et organisk, vandigt materiale indeholdende f.eks. organiske bindemidler eller emulsioner af bitumen eller vej -30 tjære.Such an operation can be performed in cold as described in European Patent Application No. 182,748, which discloses a method for cold milling upper layers of a roadway coating and wherein a liquid material is incorporated in a predetermined amount into the milled material, this amount 2 5 is calculated to provide in a single operation a material with an optimum content of compaction fluid. This liquid material may be an aqueous material, an organic material or an organic aqueous material containing e.g. organic binders or emulsions of bitumen or road -30 tar.
Der kendes ligeledes en anden fremgangsmåde, som omfatter en virkelig regenerering af det ældede bindemiddel, og som kan DK 171045 B1 2 anvendes, når det drejer sig om bitumenbindemidler, hvori yderligere materialer, som generelt består af lette hydrocar-bonfraktioner, inkorporeres i det materiale, som skal regenereres, i varmen, og i et passende behandlingsanlæg for at 5 kompensere for de fraktioner, som tabes ved fordampning -nærmere bestemt under ældning af materialet - af de bituminø-se bindemidler, som anvendes.Another method is known which comprises a real regeneration of the aged binder and which can be used in the case of bitumen binders in which additional materials, which generally consist of light hydrocarbon fractions, are incorporated into the material. which is to be regenerated, in the heat, and in an appropriate treatment plant to compensate for the fractions lost by evaporation - more specifically during aging of the material - of the bituminous binders used.
En sådan behandling har, skønt den er virkningsfuld, ulemperne ved på den ene side at være meget kostbar, fordi det er 10 nødvendigt, at materialerne transporteres til behandlingsanlægget og kræver energiforsyning til opvarmning af materialet og på den anden side resulterer den i et ikke-negligerbart tidstab, eftersom den ikke udføres in situ og endelig fordi den ikke muliggør samtidig justering af bindemiddelsammensæt-15 ningen og dens andel i slutproduktet.Such a treatment, although effective, has the disadvantages of being very expensive on the one hand, because it is necessary for the materials to be transported to the treatment plant and requires energy supply to heat the material and on the other hand it results in a negligible loss of time since it is not performed in situ and finally because it does not allow simultaneous adjustment of the binder composition and its proportion in the final product.
US-A-4.373.961 omhandler en fremgangsmåde til genanvendelse af ældet materiale fra en vejbane, ifølge hvilken man behandler nævnte forinden fra vejbanen fjernede og knuste materiale in situ og koldt ved hjælp af en sammensætning i form af en 20 vandig emulsion, der indeholder en blanding af to bitumener.US-A-4,373,961 discloses a method for recycling aged material from a roadway according to which the previously removed and crushed material removed from the roadway is treated in situ and cold by a composition in the form of an aqueous emulsion containing a mixture of two bitumen.
Ved en sådan fremgangsmåde forekommer der ikke regenerering af ældet materiale, idet det eneste problem vedrører genetablering af materialets oprindelige holdbarhed. Bitumenblan-dingen, som udgør behandlingsbindemidlet, er specielt valgt 25 for at opnå dette resultat. Et sådant bindemiddel muliggør ikke renovering af en vejbane ved regenerering af det ældede bindemiddel, dvs. genetableringen af den fysisk-kemiske sammensætning af nævnte bindemiddel.In such an approach, regeneration of aged material does not occur, the only problem being the restoration of the original durability of the material. The bitumen blend which constitutes the treatment binder is specifically selected to achieve this result. Such a binder does not allow renovation of a roadway by regenerating the aged binder, ie. the re-establishment of the physico-chemical composition of said binder.
FR-A-2.330.733 angår en fremgangsmåde til fremstilling af en 30 selvhærdende masse, som er indrettet til at blive brugt øjeblikkeligt, omfattende en mastiks, der især kan anvendes til fugning. Det i dette tidligere dokument stillede problem er fuldstændigt forskelligt fra det, som angår regenerering eller renovering af en ældet vejbane. Produktet ifølge FR-A- DK 171045 B1 3 2.330.733 formuleres til anvendelse som sådan i form af en masse, som kan påføres ved hjælp af en spatel, og som er i stand til at hærde hurtigt. Et sådant produkt kan ikke sammenlignes med et bindemiddel, som anvendes ved en fremgangs- 5 måde til regenerering af en vejbanes øvre lag, idet nævnte bindemiddel er formuleret til vekselvirkning med det ældede materiale for at sikre regenereringen. Produktet ifølge FR-A- 2.330.733 omfatter især en vandig emulsion med en høj bitu-menkoncentration og med en lille andel af en blanding af ce- 10 ment og mineralsk olie. Hverken i sammensætning eller i anvendelsesmåde ville et sådant produkt egne sig til regenerering af en vejbane.FR-A-2,330,733 relates to a method of preparing a self-curing mass which is adapted to be used immediately, comprising a mastic especially useful for grouting. The problem posed in this previous document is completely different from that of regenerating or renovating an aged roadway. The product of FR-A-DK 171045 B1 3 2,330,733 is formulated for use as such in the form of a mass which can be applied by means of a spatula and which is capable of curing rapidly. Such a product cannot be compared to a binder used in a process for regenerating the upper layer of a roadway, said binder being formulated to interact with the aged material to ensure regeneration. In particular, the product of FR-A-2,330,733 comprises an aqueous emulsion with a high bitumen concentration and with a small proportion of a mixture of cement and mineral oil. Neither in composition nor in its application would such a product be suitable for the regeneration of a roadway.
I EP-A-191.157 beskrives et pulverformigt produkt på bitumen-basis, indeholdende en specifik blanding af kisel og en eller 15 flere syntetiske zeolitter. Et sådant produkt er i alt væsentligt beregnet til at blive støbt for især at tjene til tilvejebringelse af belægninger, som under brug udsættes for kraftige spændinger, f.eks. industrigulve. Som alle nye produkter på bitumenbasis kan det også anvendes som additiv un-20 der genanvendelsen af ældet bitumen. Ikke desto mindre omhandler EP-A-191.157 ikke en fremgangsmåde til behandling in situ og koldt af en vejbanes øvre lag og omhandler heller ikke midlerne til udførelse af regenereringen af materialet i dette lag. Især finder man ingen anvisninger på en formule-25 ring af et bindemiddel, som er i stand til at vekselvirke med det ældede materiale med henblik på at genetablere dets fysi-sk-kemiske egenskaber.EP-A-191,157 discloses a bitumen-based powdered product containing a specific blend of silicon and one or more synthetic zeolites. Such a product is substantially intended to be molded, in particular, to provide coatings which are subjected to high stresses during use, e.g. industrial flooring. Like all new bitumen-based products, it can also be used as an additive during the recycling of aged bitumen. Nevertheless, EP-A-191,157 does not disclose a method for treating in situ and cold of the upper layer of a roadway, nor does it disclose the means for performing the regeneration of the material in that layer. In particular, no directions are found for a formulation of a binder capable of interacting with the aged material in order to restore its physicochemical properties.
Den foreliggende opfindelse giver mulighed for renovering af vejbaner ved arbejde in situ og i kulde, mens fordelene ved 30 den kendte varmproces bibeholdes, dvs. en proces, som ikke blot tilvejebringer en genbinding af aggregater som i den førnævnte første proces, men som tilvejebringer en virkelig regenerering af det ældede bindemiddel. Naturligvis kan fremgangsmåden ifølge opfindelsen også udføres i et behandlings-35 anlæg.The present invention allows for the renovation of roadways by working in situ and in cold, while retaining the advantages of the known heating process, ie. a process which not only provides a re-binding of aggregates as in the aforementioned first process, but which provides a real regeneration of the aged binder. Of course, the process of the invention can also be carried out in a processing plant.
DK 171045 B1 4DK 171045 B1 4
Desuden er der ifølge opfindelsen, i kulde, en sand kontinuitet mellem det bindemiddel, som eksisterer i materialet på den gamle vejbane og mindst et yderligere bindemiddel, gennem mindst et såkaldt forligeliggørende middel, som vælges til at 5 tilvejebringe en fysisk-kemisk binding mellem ældet bindemiddel og et eller flere yderligere bindemidler, idet sidstnævnte danner en af faserne i et regenererende sammensat bindemiddel, som ligeledes er en del af den foreliggende opfindelse, idet de andre faser er fasen med et eller flere forlige-10 liggørende midler og en dispergerende fase, som kan være vandig .In addition, according to the invention, in cold, there is a true continuity between the binder existing in the material of the old roadway and at least one additional binder, through at least one so-called comparative agent selected to provide a physico-chemical bond between the aged binder and one or more additional binders, the latter forming one of the phases of a regenerating composite binder which is also part of the present invention, the other phases being the phase with one or more concurrent agents and a dispersing phase, which can be watery.
Endelig muliggør uafhængigheden af regenererings- og tilsætningsfaserne formulering og proportionering af bindemidlet til opnåelse af en materialesammensætning med en forudbestemt 15 formulering.Finally, the independence of the regeneration and addition phases allows formulation and proportioning of the binder to obtain a material composition of a predetermined formulation.
Ved således at anvende hydrocarbonbindemidler kan der kompenseres for de kvantitative og kvalitative tab under ældning af materialet gennem fraktioner, som udgør det eller de yderligere bindemidler og det eller de forligeliggørende midler.Thus, by using hydrocarbon binders, the quantitative and qualitative losses during aging of the material can be compensated through fractions constituting the additional binding agent (s) and the reconciling agent (s).
20 Ifølge opfindelsen modificeres rheologien af det eksisterende hydrocarbonbindemiddel i kulde, hvilket er hidtil ukendt i sammenligning med kendte processer.According to the invention, the rheology of the existing hydrocarbon binder is modified in cold, which is unknown in comparison to known processes.
Desuden giver opfindelsen den yderligere fordel, at den muliggør indførelse af uorganiske bindemidler, som giver et 25 højt modul og en stor trykstyrke. Sådanne uorganiske bindemidler kan fordelagtigt fuldende hydrocarbonbindemidlers effekt ved tilvejebringelse af lejringsfleksibilitet, idet denne komplementaritet tilvejebringes af en formulering, som forligeliggør virkningen af et hydrocarbonbindemiddel og et 30 uorganisk bindemiddel i den samme blanding.Furthermore, the invention provides the additional advantage of enabling the introduction of inorganic binders which provide a high modulus and high compressive strength. Such inorganic binders may advantageously complete the effect of hydrocarbon binders by providing storage flexibility, this complementarity being provided by a formulation which mediates the action of a hydrocarbon binder and an inorganic binder in the same mixture.
Formålet med den foreliggende opfindelse er derfor primært en fremgangsmåde til koldregenerering af materialer, som danner det eller de øvre lag af en vejbane, og som er blevet udvun DK 171045 B1 5 det til genanvendelse, idet disse materialer er til stede som aggreater, hvoraf nogle eller alle kan være belagt af et ældet hydrocarbonbindemiddel.The object of the present invention is therefore primarily a method of cold regenerating materials which form the upper layer (s) of a roadway and which have been recovered for recycling, these materials being present as aggregates, some of which are present. or all may be coated with an aged hydrocarbon binder.
Fremgangsmåden ifølge opfindelsen er karakteriseret ved det i 5 krav 1's indledning angivne, og den er ejendommelig ved det i krav l's kendetegnende del afgivne.The method according to the invention is characterized by the preamble of claim 1 and is characterized by the characterizing part of claim 1.
Sammensætningen af det sammensatte bindemiddel vælges fortrinsvis i overensstemmelse med naturen og betingelserne for de materialer, som skal regenereres.The composition of the composite binder is preferably selected according to the nature and conditions of the materials to be regenerated.
10 Desuden kan det eller de yderligere bindemidler vælges blandt hydrocarbonbindemidler og uorganiske bindemidler.In addition, the additional binder (s) may be selected from hydrocarbon binders and inorganic binders.
Desuden kan den mængde væskefase, som skal inkorporeres i det materiale, som skal regenereres, beregnes til i en enkelt o-peration at opnå et regenereret materiale med et optimalt 15 indhold af komprimeringsvæske. En sådan mængde væskefase beregnes som funktion af de forskellige parametre, som muliggør definition af det fræsede eller knuste materiale. Denne mængde vil især afhænge af massen af opsamlet fræset eller knust materiale, af materialets partikelstørrelsesfordeling, af 20 kantetheden hos korn, der danner dette materiale, og af komprimeringsenergien i overensstemmelse med standardspecifikationen SN 670330a (Proctor-test eller tilsvarende).In addition, the amount of liquid phase to be incorporated into the material to be regenerated can be calculated to obtain in a single operation a regenerated material with an optimum content of compaction fluid. Such amount of liquid phase is calculated as a function of the various parameters which allow definition of the milled or crushed material. In particular, this amount will depend on the mass of milled or crushed material collected, on the particle size distribution of the material, on the angularity of grains forming this material, and on the compression energy in accordance with standard specification SN 670330a (Proctor test or equivalent).
Der kan også udføres en yderligere blandingsoperation efter inkorporering af det sammensatte bindemiddel i materialet, 25 som skal regenereres.An additional mixing operation can also be performed after incorporating the composite binder into the material to be regenerated.
Arbejdet udføres fortrinsvis in situ ved at udføre fræsningen af de øvre vejbanelag på kendt måde, udlevere det sammensatte bindemiddel til fræsningszonen og koldblande bindemidlet med det fræsede materiale, som skal regenereres. Afpasningen af 30 den nødvendige mængde flydende sammensat bindemiddel udføres i overensstemmelse med maskinens fremføringshastighed.The work is preferably carried out in situ by performing the milling of the upper roadway layers in a known manner, supplying the composite binder to the milling zone, and cold blending the binder with the milled material to be regenerated. The adjustment of the required amount of liquid composite binder is performed in accordance with the machine feed rate.
DK 171045 B1 6DK 171045 B1 6
Et andet formål med den foreliggende opfindelse er et sammensat bindemiddel til udøvelse af den ovenfor beskrevne fremgangsmåde, idet et sådant bindemiddel også er defineret ovenfor .Another object of the present invention is a composite binder for carrying out the process described above, such binder being also defined above.
5 Som et eksempel foreslås der i overensstemmelse med den foreliggende opfindelse et bindemiddel, anvendt til regenereringen af et bitumenbelagt materiale, hvilket bindemiddel er karakteriseret ved, at det omfatter: en vandig, dispergerende fase, som omfatter mindst et 10 overfladeaktivt middel valgt blandt ioniske, overflade aktive midler og ikke-ioniske, overfladeaktive midler, mindst et yderligere hydrocarbonbindemiddel valgt blandt rene bitumener og specielle bitumener, fluxede eller ikke -fluxede, og 15 - mindst et forligeliggørende hydrocarbonbindemiddel valgt blandt aromatiske olier fra jordolier.As an example, in accordance with the present invention, there is proposed a binder used for the regeneration of a bitumen coated material, characterized in that it comprises: an aqueous dispersing phase comprising at least one surfactant selected from ionic, surface active agents and nonionic surfactants, at least one additional hydrocarbon binder selected from pure bitumens and special bitumens, fluxed or non-fluxed, and 15 - at least one compatible hydrocarbon binder selected from petroleum aromatic oils.
Som et andet eksempel foreslås der i overensstemmelse med den foreliggende opfindelse et sammensat bindemiddel, anvendt til regenereringen af en vejbane omfattende ikke-bundne mate-20 rialer, hvilket bindemiddel er karakteriseret ved, at det omfatter en vandig, dispergerende fase, som i opløsning omfatter mindst et overfladeaktivt middel valgt blandt ikke-ioniske, overfladeaktive midler og ioniske, overfladeaktive midler og tilvejebringer virkningsforligelighed mellem hydrocar-25 bonbindemidlerne og de hydrauliske bindemidler, samt mindst et yderligere hydrocarbonbindemiddel valgt blandt rene bitumener og specielle bitumener, fluxede eller ikke-fluxede, og mindst et hydraulisk bindemiddel.As another example, in accordance with the present invention, a composite binder used for the regeneration of a roadway comprising non-bonded materials is proposed, which binder is characterized by comprising an aqueous dispersing phase comprising in solution at least one surfactant selected from nonionic surfactants and ionic surfactants, providing compatibility between the hydrocarbon binders and the hydraulic binders, and at least one additional hydrocarbon binder selected from pure bitumens and special bitumens, fluxed or non-fluxed, and at least one hydraulic binder.
De ioniske, overfladeaktive midler, som kan anvendes, er især 30 valgt blandt alkalisalte af harpikssyrer, alkalisalte af animalske proteiner, kvaternære ammoniumsalte og fedtpolyaminhy-In particular, the ionic surfactants which may be used are selected from alkaline salts of resin acids, alkaline salts of animal proteins, quaternary ammonium salts and fatty polyamine hybrids.
De ikke-ioniske, overfladeaktive midler, som kan anvendes, er især valgt blandt polyoxyethylenerede forbindelser.The nonionic surfactants which can be used are especially selected from polyoxyethylenated compounds.
DK 171045 B1 7 drochlorider.DK 171045 B1 7 dry chlorides.
Den foreliggende opfindelse angår ligeledes det bindemiddel, 5 som er et resultat af kombination, ved koldblanding, af det sammensatte bindemiddel som defineret ovenfor og det eller de bindemidler af det behandlede materiale, som er blevet regenereret ved hjælp af det sammensatte bindemiddel.The present invention also relates to the binder resulting from combination, by cold mixing, of the composite binder as defined above and the binder (s) of the treated material which have been regenerated by the composite binder.
Til bedre forståelse af formålet med den foreliggende opfin-10 delse vil der i det følgende blive beskrevet særlige udførelsesformer for de regenererende, sammensatte bindemidler ifølge opfindelsen samt deres anvendelse til reparation af vejbaner. I disse eksempler er procentsatserne givet på vægtbasis.For a better understanding of the purpose of the present invention, specific embodiments of the regenerative composite binders of the invention as well as their use in roadway repair will be described below. In these examples, the percentages are given by weight.
Eksempel 1 15 Regenerering af et gammelt, bitumenbelagt materialeExample 1 Regeneration of an old bitumen coated material
Det regenererede, sammensatte bindemiddel formuleres som følger : 50 til 60% af en bitumen i overensstemmelse med standardspecifikationen T65-001, 20 - 5 til 15% af en blanding af aromatiske olier fra jord olie , 1 til 2% alifatisk polyaminhydrochlorid og 44 til 23% vand.The regenerated composite binder is formulated as follows: 50 to 60% of a bitumen according to standard specification T65-001, 20 - 5 to 15% of a mixture of aromatic oils from petroleum oils, 1 to 2% aliphatic polyamine hydrochloride and 44 to 23 % water.
Det indføres i en mængde på 1 til 3 vægt% af det formalede 25 materiale, idet det alifatiske polyaminhydrochlorid opløses i ionisk form i vandet, som danner en kontinuert fase, og hver DK 171045 B1 8 af de to andre komponenter, dvs. bitumen og blandingen af aromatiske olier, dispergeres i den kontinuerte fase, således at de udgør separate faser.Efter dispergering af disse to hydrocarbonfaser vil de forligeliggørende fraktioner gøre den 5 eksisterende, ældede bitumen flydende, mens de tunge, aromatiske forbindelser tilvejebringer brodannelse mellem dette sandt regenererede bindemiddel og det yderligere bindemiddel i den kontinuerte fase efter brud.It is introduced in an amount of 1 to 3% by weight of the ground material, the aliphatic polyamine hydrochloride being dissolved in ionic form in the water, which forms a continuous phase, and each of the other two components, i. bitumen and the mixture of aromatic oils are dispersed in the continuous phase to form separate phases. After dispersing these two hydrocarbon phases, the resulting fractions will liquefy the existing aged bitumen while the heavy aromatic compounds provide bridging between this regenerated binder and the additional binder in the continuous phase after rupture.
Eksempel 2 10 Regenerering af en vejbane med en stor andel af ikke-bundne og ikke særligt ujævne materialerExample 2 10 Regeneration of a roadway with a high proportion of non-bound and not very uneven materials
Det regenererende, sammensatte bindemiddel formuleres som følger: 30 til 40% af en bitumen i overensstemmelse med standard-15 specifikationen T65-001, dispergeret i den kontinuerte fase, 50 til 30% cement, dispergeret i vand, 0,5 til 2% af et kvaternært ammoniumsalt opløst i vand og 20,5 til 28% vand, som udgør den kontinuerte fase med det 20 kvaternære ammoniumsalt.The regenerating composite binder is formulated as follows: 30 to 40% of a bitumen in accordance with standard specification T65-001, dispersed in the continuous phase, 50 to 30% of cement, dispersed in water, 0.5 to 2% of a quaternary ammonium salt dissolved in water and 20.5 to 28% water which constitutes the continuous phase with the 20 quaternary ammonium salt.
Det kvaternære ammoniumsalt tilvejebringer virkningsforligelighed mellem hydrocarbonbindemidlerne og det hydrauliske bindemiddel.The quaternary ammonium salt provides compatibility of action between the hydrocarbon binders and the hydraulic binder.
Forholdet mellem forskellige komponenter af dette bindemiddel 25 reguleres i overensstemmelse med følgende elementer: naturen af det materiale, som skal behandles, DK 171045 B1 9 procentsatsen af tidligere tilsat kølevand på formalingsrotorniveau, ved hjælp af en separat vandlinie, idet denne procentsats beregnes således, at der opnås et optimalt vandindhold til komprimering, 5 - det respektive forhold mellem dette tilsatte vand og pro centsatsen af cement, som muliggør afbinding af sidstnævnte .The ratio of various components of this binder 25 is adjusted according to the following elements: the nature of the material to be treated, the percentage of previously added cooling water at the grinding rotor level, using a separate water line, this percentage being calculated so that an optimum water content is obtained for compression, 5 - the respective ratio of this added water to the percentage of cement which enables the latter to be decomposed.
Eksempel 3Example 3
Regenerering af en vejbane med en stor andel ikke-bundne ma-10 terialer og materialer bundet ved hiælp af et ældet hvdrocar-bonbindemiddel.Regeneration of a road surface with a high proportion of non-bonded materials and materials bonded using an aged hydrocarbon binder.
Det regenererende, sammensatte bindemiddel formuleres som følger: 25 til 35% af en bitumen i overensstemmelse med standard-15 specifikationen T65-001, i dispergeret fase, 3 til 5% af en blanding af aromatiske olier fra jordolie, i dispergeret fase, 0,5 til 2% af en blanding af fedtpolyaminhydrochlorid og et ikke-ionisk, overfladeaktivt polyoxyethylenmateriale, 20 opløst i vand, 50 til 30% cement, dispergeret i vand og 21,5 til 28% vand.The regenerating composite binder is formulated as follows: 25 to 35% of a bitumen in accordance with standard specification T65-001, in dispersed phase, 3 to 5% of a mixture of petroleum aromatic oils, in dispersed phase, 0, 5 to 2% of a mixture of fatty polyamine hydrochloride and a non-ionic surfactant polyoxyethylene material, 20 dissolved in water, 50 to 30% cement, dispersed in water and 21.5 to 28% water.
Som i eksempel 1 dispergeres begge faser, bitumen og aromatiske olier, i den vandige fase uafhængigt af hinanden og opfø-25 rer sig over for det ældede hydrocarbonmiddel som i eksempel 1. Blandingen af overfladeaktive midler har, med hensyn til virkninger på begge bindemidler, dvs. hydrocarbonbindemiddel DK 171045 B1 10 og uorganisk bindemiddel, den samme funktion som den kvater-nære ammoniumforbindelse i eksempel 2, idet der eksisterer den samme relation mellem afbindingen af cement og afpasningen af tilsat formalingsvand.As in Example 1, both phases, bitumen and aromatic oils, in the aqueous phase, are dispersed independently of one another and behave towards the aged hydrocarbon agent as in Example 1. The mixture of surfactants has, with respect to effects on both binders, i.e. hydrocarbon binder DK 171045 B1 10 and inorganic binder, the same function as the quaternary ammonium compound of Example 2, with the same relationship existing between the bonding of cement and the adjustment of added grinding water.
5 Eksempel 4Example 4
Regenerering af et gammelt, bitumenbelagt materialeRegeneration of an old, bitumen-coated material
Det regenererende, sammensatte bindemiddel, tilsat i en mængde på 1 til 30 vægt% af det formalede materiale, formuleres som følger: 10 - 50 til 65% af en blanding bestående af 90 til 98% af en bitumen i overensstemmelse med standardspecifikationen T65-001 og 2 til 10% af en blanding af aromatiske olier fra jordolie, idet denne blanding er en dispergeret fase, 1 til 2% af en blanding af ionisk, overfladeaktivt mid-15 del: alkalisalt af harpikssyre og animalsk protein i et vandigt medium og 49 til 33% vand.The regenerating composite binder added in an amount of 1 to 30% by weight of the ground material is formulated as follows: 10 - 50 to 65% of a mixture consisting of 90 to 98% of a bitumen in accordance with standard specification T65-001 and 2 to 10% of a mixture of petroleum aromatic oils, this mixture being a dispersed phase, 1 to 2% of a mixture of ionic, surfactant: alkaline salt of resin acid and animal protein in an aqueous medium and 49 to 33% water.
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8616023A FR2606801B1 (en) | 1986-11-18 | 1986-11-18 | PROCESS FOR COLD REGENERATION OF THE UPPER LAYERS OF PAVEMENTS AND BINDERS FOR THE IMPLEMENTATION OF THIS PROCESS |
| FR8616023 | 1986-11-18 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK603887D0 DK603887D0 (en) | 1987-11-17 |
| DK603887A DK603887A (en) | 1988-05-19 |
| DK171045B1 true DK171045B1 (en) | 1996-04-29 |
Family
ID=9340922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK603887A DK171045B1 (en) | 1986-11-18 | 1987-11-17 | Process for cold regeneration of the upper layers of roadways |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0274920B1 (en) |
| AT (1) | ATE100848T1 (en) |
| DE (1) | DE3788952T2 (en) |
| DK (1) | DK171045B1 (en) |
| ES (1) | ES2048162T3 (en) |
| FR (1) | FR2606801B1 (en) |
| PT (1) | PT86149B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2639375B1 (en) * | 1988-11-18 | 1993-11-26 | Muntzer Emile | REGENERATION AND COLD COATING OF BITUMINOUS RECYCLING MATERIALS |
| FR2661173B1 (en) * | 1990-04-18 | 1992-08-07 | Colas Sa | COMPOSITE BINDER, ITS PROCESS FOR OBTAINING AND ITS APPLICATION IN ROAD COVERINGS. |
| US5807429A (en) * | 1990-04-18 | 1998-09-15 | Colas S.A. | Compound binder, process for obtaining it and application in highway surfacing |
| FR2684699B1 (en) * | 1991-12-05 | 1998-11-20 | Beugnet Sa | PROCESS FOR DOUBLE COLD TREATMENT OF A GRANULAR MATERIAL FOR THE ROAD TECHNOLOGY. |
| DE4237512A1 (en) * | 1992-11-08 | 1994-05-11 | Wirtgen Gmbh | Method and device for repairing damaged lanes |
| ES2116898B1 (en) * | 1995-10-17 | 1999-04-01 | Repsol Petroleo Sa | BETUN REJUVENATING PRODUCTS SUITABLE FOR USE IN RECYCLING ROAD PAVEMENTS. |
| US6599057B2 (en) | 2001-06-14 | 2003-07-29 | Kmc Enterprises, Inc. | Cold in-place recycling of bituminous material |
| US7455476B2 (en) | 2003-12-18 | 2008-11-25 | Kmc Enterprises, Inc. | Method of reconstructing a bituminous-surfaced pavement |
| FR2909665B1 (en) * | 2006-12-07 | 2010-09-17 | Colas Sa | COLD CURING REACTIVE BINDER AND USE THEREOF |
| DE102010053406B4 (en) * | 2010-12-06 | 2014-06-12 | Joachim Eberhardt | Process for the production and installation of an asphalt building material suitable for cold incorporation and corresponding asphalt building material |
| DE102012108224A1 (en) * | 2011-09-08 | 2013-03-14 | Rothmund Maschinenbau Gmbh | Cold-Asphaltierungs device |
| CN112411305A (en) * | 2020-10-30 | 2021-02-26 | 湖南国晟环境科技有限公司 | Road solid waste mobile crushing and in-situ cold recycling construction method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2330733A1 (en) * | 1975-11-07 | 1977-06-03 | Deitermann Kg | Self-hardenable mass prodn - by adding a mixt contg e.g. pitch, hydrophilic binder, plasticizer to aq dispersion |
| US4373961A (en) * | 1981-10-13 | 1983-02-15 | Penelizer Corporation | Process and composition for use in recycling of old asphalt pavements |
| CH661953A5 (en) * | 1984-11-20 | 1987-08-31 | Colas Sa | METHOD FOR PREPARING A PAVEMENT COATING MATERIAL. |
-
1986
- 1986-11-18 FR FR8616023A patent/FR2606801B1/en not_active Expired
-
1987
- 1987-11-10 AT AT87402544T patent/ATE100848T1/en not_active IP Right Cessation
- 1987-11-10 EP EP87402544A patent/EP0274920B1/en not_active Expired - Lifetime
- 1987-11-10 DE DE3788952T patent/DE3788952T2/en not_active Expired - Fee Related
- 1987-11-10 ES ES87402544T patent/ES2048162T3/en not_active Expired - Lifetime
- 1987-11-17 DK DK603887A patent/DK171045B1/en not_active IP Right Cessation
- 1987-11-17 PT PT86149A patent/PT86149B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3788952D1 (en) | 1994-03-10 |
| EP0274920B1 (en) | 1994-01-26 |
| ATE100848T1 (en) | 1994-02-15 |
| FR2606801B1 (en) | 1989-03-10 |
| PT86149B (en) | 1993-09-30 |
| PT86149A (en) | 1988-12-15 |
| DE3788952T2 (en) | 1994-07-28 |
| EP0274920A1 (en) | 1988-07-20 |
| DK603887D0 (en) | 1987-11-17 |
| FR2606801A1 (en) | 1988-05-20 |
| DK603887A (en) | 1988-05-19 |
| ES2048162T3 (en) | 1994-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |