DK143034B - SURFACE COATING MATERIAL AND PROCEDURE FOR ITS MANUFACTURING - Google Patents
SURFACE COATING MATERIAL AND PROCEDURE FOR ITS MANUFACTURING Download PDFInfo
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- DK143034B DK143034B DK477768A DK477768A DK143034B DK 143034 B DK143034 B DK 143034B DK 477768 A DK477768 A DK 477768A DK 477768 A DK477768 A DK 477768A DK 143034 B DK143034 B DK 143034B
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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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Description
i U3034in U3034
Opfindelsen angår et overfladebelægningsmateriale og mere specielt et materiale til brug ved vejbelægnings-og reparationsarbejder, opbygning af overfladebelægninger i rekreationsområder og andre arealer til sportsudøvelse 5 etc. Materialet formuleres som opslemning ved grundig blanding af en særlig art vandig anionisk emulsion af et bituminøst bindemiddel, sædvanligvis og fortrinsvis asfalt, med et fast partikelformigt materiale, såsom et mineralsk aggregat, gummipartikler, afskårne fibre, etc.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a surface coating material, and more particularly to a material for use in road paving and repair work, the construction of surface coatings in recreational areas and other areas for sports 5. The material is formulated as a slurry by thorough mixing of a particular kind of aqueous anionic emulsion of a bituminous binder. and preferably asphalt, with a solid particulate material such as a mineral aggregate, rubber particles, cut fibers, etc.
10 Yderligere vand kan tilsættes for at give blandingen op-slemningskonsistens. Når materialet bruges til overfladebelægning vil det ved tilsætning af en afbindingsinitia-tor, enten sammen med eller efter kombination med det partikelformige materiale, afbinde ved en kemisk reak-15 tion med hurtig sammenløbning og emulsionsbrydning i stedet for ved dehydratisering, fordampning, som ved de fleste tidligere kendte anioniske bituminøse emulsioner, og danne en sort, sej, sammenhængende overfladebelægning oven på det underlag, på hvilket det er påført. Materia-20 let opnår overraskende hurtigt trækstyrke og regnfasthed.Additional water may be added to give the mixture a slurry consistency. When the material is used for surface coating, it will, by the addition of a quenching initiator, either with or after combination with the particulate material, settle by a chemical reaction with rapid decomposition and emulsion breaking rather than by dehydration, evaporation, as with the most previously known anionic bituminous emulsions, forming a black, tough, cohesive surface coating on top of the substrate on which it is applied. The Materia-20 easily achieves surprisingly fast tensile strength and rain resistance.
En meget vigtig anvendelse af det foreliggende materiale er til slurry seal. Anvendelse af bituminøse, as-faltagtige, emulsioner som slurry seal er velkendt ved vejbelægningsteknik. Disse slurry seal-blandinger benyt-25 tes specielt til fornyelse og belægning af gammel, men endnu brugbar vejbelægning, ved udfyldning af små revner og afskallede dele. Sædvanligvis er det blandinger af langsomtafbindende bituminemulsioner, småstensaggregater og mineralsk fyldstof, for eksempel Portlandcement, hvor 30 der tilsættes vand til opnåelse af den ønskede opslem- ningskonsistens. Fremgangsmåderne til påførsel af slurry-seal-belægninger er velkendte og beskrevet i teknikken.A very important use of the present material is for slurry seal. The use of bituminous, asphalt-like, emulsions such as slurry seal is well known in the paving technique. These slurry seal mixtures are especially used for the renewal and coating of old, but still usable, paving, by filling in small cracks and peeled parts. Usually, it is mixtures of slow-decomposing bituminous emulsions, pebbles and mineral filler, for example Portland cement, where water is added to obtain the desired slurry consistency. The methods of applying slurry-seal coatings are well known and described in the art.
For eksempel kan man finde en detailleret beskrivelse af en sådan påførsel på side 217 i "The Asphalt Hand-35 book" revideret udgave, september, 1960, udgivet af The Asphalt Institute, College Park, Maryland.For example, a detailed description of such application can be found on page 217 of "The Asphalt Hand-35 book" revised edition, September, 1960, published by The Asphalt Institute, College Park, Maryland.
Emulgeret asfalt i form af anioniske emulsioner dannet med anionaktive "Vinsol"-harpiks-emulgatorer, der 2 143034 er lignosulfonatsalte, har kunnet fås i handelen og har været brugt i slurry seal-arbejde i ganske lang tid. Da afbindingshastigheden af sådanne anionemulsioner, når de anvendes i en slurry seal, primært er en funktion af 5 fordampningshastigheden af vand fra blandingen, brydes emulsionen imidlertid ikke hurtigt nok, og asfaltbinde-midlet begynder ikke at afsættes som et lag på aggregatoverfladen, før en betydelig del af vandet er fordampet fra den udlagte overfladebelægning, se f.eks. "Bitumi-10 nous Slurry Surface Handbook", udgivet af Slurry Seal,Emulsified asphalt in the form of anionic emulsions formed with anionic "Vinsol" resin emulsifiers, which are lignosulfonate salts, have been commercially available and have been used in slurry seal work for quite some time. However, since the rate of decomposition of such anion emulsions when used in a slurry seal is a function of the rate of evaporation of water from the mixture, the emulsion does not break fast enough and the asphalt binder does not begin to deposit as a layer on the aggregate surface until a considerable part of the water is evaporated from the laid surface coating, see e.g. "Bitumi-10 nous Slurry Surface Handbook", published by Slurry Seal,
Inc. of Waco, Texas 1966. Hvis der afsættes fugtighed, som ved regn, før belægningens overflade bliver tør, fugtes den lagte blanding igen, og den reparerede eller fornyede overflade beskadiges, før den har afbundet til-15 strækkeligt. En anden ulempe ved slurry seal-blandinger dannet med anioniske bituminemulsioner er den tendens, mange af dem har til at danne skind, hvilket fænomen forsinker-dehydratisering. Desuden kan bituminøse bindemidler, når de anvendes i form af anioniske emulsioner, 20 som regel ikke fæstne sig til silikatholdige aggregater.Inc. of Waco, Texas 1966. If moisture is deposited, as in rain, before the coating surface becomes dry, the laid mixture is moistened again and the repaired or renewed surface is damaged before being sufficiently bound. Another disadvantage of slurry seal mixtures formed with anionic bituminous emulsions is the tendency of many of them to form skins, which delays dehydration. In addition, when used in the form of anionic emulsions, bituminous binders may not usually adhere to silicate-containing aggregates.
På den anden side er anvendelsen af slurry seal-blandinger med kationiske asfaltemulsioner blevet en del udbredt i det sidste tiår, se f.eks. beskrivelsen på side 56 i "Paving Handbook" udgivet af American Bitumuls 25 and Asphalt Company, San Francisco, California, 1958. I-midlertid er brugen af disse slurry seal-blandinger ledsaget af visse ulemper. Nogle af dem afbinder langsomt, andre har selv om de afbinder kemisk og ikke ved fordampning, f.eks. som vist i beskrivelsen til sydafri-30 kansk patent nr. 666.702, og selv om de er mindre påvirkede af regn, vist sig at være overordentlig følsomme over for temperaturpåvirkninger, hvilket ofte resulterer i uheld, fordi de afbinder for hurtigt. Kationiske bituminemulsioner til brug i slurry seals kræver 35 derfor anvendelse af yderligere stabilisatorer. Desuden har de vist sig at være meget påvirkelige af arten og graderingen af aggregater, idet emulsionen brydes for hurtigt især ved kontakt med "snavsede" aggregater, det 3On the other hand, the use of slurry seal mixtures with cationic asphalt emulsions has become quite widespread in the last decade, see e.g. the description on page 56 of the "Paving Handbook" published by American Bitumuls 25 and Asphalt Company, San Francisco, California, 1958. In the meantime, the use of these slurry seal mixtures is accompanied by certain disadvantages. Some of them slowly decompose, others even though they chemically decompose and not by evaporation, e.g. as shown in the description to South African Patent No. 666,702, and although less affected by rain, has been found to be extremely sensitive to temperature influences, which often results in accidents because they bind too quickly. Cationic bituminous emulsions for use in slurry seals therefore require the use of additional stabilizers. In addition, they have been found to be very influenced by the nature and grading of aggregates, the emulsion breaking too quickly especially when contacted with "dirty" aggregates, the 3
14303 A14303 A
vil f.eks. sige lerholdige. Dette tvinger brugeren til at benytte hyppig reformulering af emulsionen og regrade-ring af aggregatet eller tilsætning af kostbare tilsætningsstoffer .for example, say clay-containing. This forces the user to use frequent reformulation of the emulsion and downgrade of the aggregate or the addition of expensive additives.
5 Det er således indlysende, at på trods af mindre modtagelighed for ødelæggelse ved pludselig nedbør, regn, er kationiske emulsioner langt fra at være det ideelle materiale til dannelse af slurry seal-blandinger.5 It is thus obvious that, despite less susceptibility to destruction by sudden rainfall, rainfall, cationic emulsions are far from being the ideal material for forming slurry seal mixtures.
Emulsioner fremstillet med ikke-ioniske emulga-10 torer er blevet foreslået til dannelse af slurry seal-blandinger, f.eks. i beskrivelsen til engelsk patent nr. 1.058.056, men til sikring af tilfredsstillende afbinding af bindemidlet, det vil sige, at blandingen hverken afbinder for langsomt eller overdrevent hurtigt, må der an-15 vendes yderligere hjælpemidler i form af anioniske eller kationiske emulgatorer, visse modifikationsmidler og/el-ler stabilisatorer. Dette forøger naturligvis omkostningerne ved fremstilling af slurry seal-blandinger u-rimeligt.Emulsions prepared with non-ionic emulsifiers have been proposed to form slurry seal mixtures, e.g. in the specification to English Patent No. 1,058,056, but to ensure satisfactory bonding of the binder, i.e., that the mixture does not bind too slowly or excessively rapidly, additional auxiliary agents in the form of anionic or cationic emulsifiers must be used. certain modifiers and / or stabilizers. This, of course, increases the cost of producing slurry seal mixtures unreasonably.
20 I beskrivelsen til dansk patentansøgning nr.20 In the description of Danish patent application no.
5094/66 er det foreslået at fremstille et vejbelægningsmateriale, specielt et slurry seal-materiale, indeholdende et fast partikelformigt materiale og en af-bindingsinitiator, som Portlandcement, læsket kalk eller 25 blandinger deraf, i en vandig bitumenemulsion, der som emulgator indeholder et organisk sulfat eller sulfonat.5094/66, it is proposed to prepare a paving material, in particular a slurry seal material, containing a solid particulate material and a decomposition initiator, such as Portland cement, slaked lime or mixtures thereof, in an aqueous bitumen emulsion containing as an organic emulsifier sulfate or sulfonate.
Det foretrækkes at anvende organiske sulfonater, og særlig anbefales sulfonerede aromatiske ethere, f.eks. di-sulfonater af alifatisk substituerede diphenylethere.It is preferred to use organic sulfonates, and in particular sulfonated aromatic ethers are recommended, e.g. disulfonates of aliphatic substituted diphenyl ethers.
30 Endvidere anbefales det at bruge sådanne sulfonerede aromatiske ethere i blanding med ikke-ioniske overfladeaktive midler samt højere alifatiske arainoxider og eventuelt også harpikssæber og opløseligt protein, såsom kasein eller lim. Sammensætningen af dette vejbelæg-35 ningsmateriale bliver på denne måde mere kompliceret, og også mere bekosteligt end ønskeligt, og dertil kammer, at der for materialet angives afbindingstider, som er overdrevent hurtige, 1-5 min., men som allerede anført ovenfor 14303Λ 4 bør afbindingen hverken være for langsom eller overdreven hurtig.Furthermore, it is recommended to use such sulfonated aromatic ethers in admixture with nonionic surfactants as well as higher aliphatic aqueous oxides and optionally also resin soaps and soluble protein such as casein or glue. The composition of this paving material in this way becomes more complicated, and also more expensive than desirable, and in addition, for the material, binding times are stated which are excessively fast, 1-5 minutes, but as already stated above 14303Λ 4 the binding should not be too slow or excessively fast.
Således er der stadig i teknikken behov for enkle, effektive og mindre kostbare, hurtigtafbindende komposi-5 tioner af emulgeret bitumen eller asfalt og faste partikelf ormige stoffer, og fortrinsvis er uafhængige af sidstnævntes elektriske overfladeladning.Thus, in the art, simple, effective and less expensive, fast-bonding compositions of emulsified bitumen or asphalt and solid particulate matter are still needed, and are preferably independent of the latter's electrical surface charge.
Ved den foreliggende opfindelse tilvejebringes et overfladebelægningsmateriale, der er af en lignende 1C type som det sidst omtalte, kendte materiale, men som både har en enklere sammensætning og en for anvendelsen i praksis passende hurtig, men ikke for hurtig afbinding (15-30 minutter). Materialet indeholder i intim blanding et fast partikelformigt materiale og pr. 100 vægt-15 dele af dette materiale 0,1 til 5 vægtdele Portlandce-ment, læsket kalk eller blandinger deraf og 3 til 150 vægtdele af en bitumenemulsion, som indeholder 50-70 vægt % bituminøst bindemiddel* 0,1 til 5 vægt% af en emulgator og vand til 100 vægt% af emulsionen, og det for ma-20 terialet ejendommelige er^. at emulgatoren udgøres af et emulgerende salt af en Cg-C22 α-olefinsulfonsyre.The present invention provides a surface coating material which is of a similar type 1C to the last known prior art material, but which has both a simpler composition and a fast, but not too fast, bonding suitable for use (15-30 minutes). . The material contains in intimate mixture a solid particulate material and per unit weight. 100 weight-15 parts of this material 0.1 to 5 parts by weight Portland cement, slaked lime or mixtures thereof and 3 to 150 parts by weight of a bitumen emulsion containing 50-70% by weight bituminous binder * 0.1 to 5% by weight of an emulsifier and water to 100% by weight of the emulsion, and that peculiar to the material is ^. the emulsifier is an emulsifying salt of a Cg-C22 α-olefin sulfonic acid.
Olefingruppen i emulgatoren kan være enten lige-kædet eller forgrenet. Fortrinsvis anvendes α-olefinsulf onsyrer indeholdende fra 12-20 carbonatomer. Syren 25 neutraliseres med base til dannelse af en mængde ioniseret salt i en mængde, der er tilstrækkeligt til emulgering af bitumenet. Som passende baser kan nævnes NaOH, KOH, LiOH, NH^OH og organiske baser, såsom lavere amin-baser, f.eks. triethylamin, diethylamin.The olefin group in the emulsifier may be either straight chain or branched. Preferably, α-olefin sulfonic acids containing from 12-20 carbon atoms are used. The acid 25 is neutralized with base to form an amount of ionized salt in an amount sufficient to emulsify the bitumen. Suitable bases include NaOH, KOH, LiOH, NH 2 OH and organic bases such as lower amine bases, e.g. triethylamine, diethylamine.
30 Det faste partikelformige stof, der anvendes i materialet, kan alt efter den påregnede anvendelse af materialet være et vilkårligt af et antal stoffer. Som eksempler på passende materialer kan således nævnes organiske materialer, gummislibeaffald fra slidbanebelæg- Λ “ 35 ning på dæk og afskårne fibre, såsom fra bagasse og hamp, organiske polymere, såsom polypropylen og poly-estre, uorganiske materialer, såsom glasfibre og asbest og mineralske aggregater, såsom grus, knust lava, knust 143034 5 granit og knust kalksten. Partikelstørrelserne er ikke i afgørende i materialet. Således kan partiklernes størrelse ligge i området fra en μ eller mindre til 2 1/2 cm eller større. Blandinger, der har en stor variation i par-5 tikelstørrelse, er passende.The solid particulate substance used in the material may be any of a number of substances, depending on the intended use of the material. Examples of suitable materials include organic materials, rubber abrasive waste from tire coating and cut fibers such as bagasse and hemp, organic polymers such as polypropylene and polyesters, inorganic materials such as glass fibers and asbestos and minerals. aggregates such as gravel, crushed lava, crushed granite and crushed limestone. The particle sizes are not essential in the material. Thus, the size of the particles may range from one μ or less to 2 1/2 cm or larger. Mixtures having a large variation in particle size are appropriate.
Ved den specielle anvendelse af materialet som slurry seåls er det almindeligt at benytte et mineralsk aggregat, enten kiselsyreholdigt eller kalkholdigt, f.eks. fint sand, knusningssmuld eller knust granit, og 10 partikelstørrelsen af materialet ligger inden for det område, der normalt er specificeret for slurry seals.In the special use of the material as slurry seals, it is common to use a mineral aggregate, either silicic or calcareous, e.g. fine sand, crushing dirt or crushed granite, and the particle size of the material is within the range normally specified for slurry seals.
De i materialet anvendte afbindingsinitiatorer kan også benævnes alkaliske fyldstoffer og omfatter som nævnt læsket kalk og Portlandcement eller blandinger heraf.The bonding initiators used in the material may also be referred to as alkaline fillers and, as mentioned, include slaked lime and Portland cement or mixtures thereof.
15 Fyldstofferne anvendes fortrinsvis i en mængde på fra ca.The fillers are preferably used in an amount of from approx.
0,25 til ca. 2% beregnet på vægten af fast partikel-formigt materiale. Et antal andre materialer har vist sig at have kapacitet til at virke som afbindingsinitiatorer, idet der opnås den forsinkede, men hurtige afbinding på 20 en måde, der svarer til kalk og Portlandcement. Imidlertid var det færdige materiale i hvert tilfælde "oste-agtigt" af karakter og manglede tilstrækkelig styrke.0.25 to approx. 2% by weight of solid particulate matter. A number of other materials have been found to have the capacity to act as debonding initiators, obtaining the delayed but rapid bonding in a manner similar to lime and Portland cement. However, in each case the finished material was "cheese-like" in character and lacked sufficient strength.
Blandt disse materialer var ferrisulfat, aluminiumsulfat, aluminiumchlorid og calciumacetat. Et antal andre ma-25 terialer omfattende lithiumcarbonat, natriumphosphat og natriumhydroxid kunne ikke bryde emulsionen.Among these materials were ferric sulfate, aluminum sulfate, aluminum chloride and calcium acetate. A number of other materials including lithium carbonate, sodium phosphate and sodium hydroxide failed to break the emulsion.
Til anvendelse som slurry seal foretrækkes ifølge opfindelsen et materiale, som er ejendommeligt ved, at det faste pulverformige materiale er et mineralsk aggre-30 gat, at materialet indeholder fra ca. 15-25 vægtdele e-mulsion pr. 100 vægtdele aggregat, at emulgatoren er til stede i emulsionen i en mængde på fra ca. 0,30 til 3^0 vægt%, og at materialet indeholder tilstra&keligt vand til frembringelse af slurry-seal konsistens.For use as a slurry seal, according to the invention, a material which is characterized in that the solid powdered material is a mineral aggregate, is preferred, the material containing from approx. 15-25 parts by weight of e-mulsion per 100 parts by weight of aggregate that the emulsifier is present in the emulsion in an amount of from about 0.30 to 30% by weight, and that the material contains sufficient water to produce slurry-seal consistency.
35 De omtalte salte af cg”c22 olefinsulfonsyrer frem stilles ved reaktion mellem højere cg“C22f °9 fortrinsvis C12~C20' Ugekædede olefiner og gasformigt svovlsyreanhy-drid og forsæbning af de resulterende sulfoneringsproduktblandinger med base, såsom NaOH eller KOH. Frem- 6 143034 stillingen er beskrevet i en bulletin fra Chevron Chemical Company, Oronite Division, med titlen "Preparation of C-^cj-C^g Alfa-Olefin Sulfonate (AOS)," udgivet i 1966, og også i fransk patentskrift nr. 1.419.652. I disse "alfa-ole-5 finsulfonsyre"-salte er kationen sædvanligvis en alkali-metalkation, normalt natrium.The said salts of cg "c22 olefin sulfonic acids are prepared by reaction between higher cg" C22f ° 9 preferably C12 ~ C20 'Unchained olefins and gaseous sulfuric anhydride and saponification of the resulting sulfonation product mixtures with base such as NaOH or KOH. The position is described in a bulletin from the Chevron Chemical Company, Oronite Division, entitled "Preparation of C--Cj-C ^ g Alfa-Olefin Sulfonate (AOS)," published in 1966, and also in French Patent 1,419,652. In these "alpha-olefin-sulfonic acid" salts, the cation is usually an alkali metal cation, usually sodium.
Opfindelsen angår også en fremgangsmåde til fremstilling af det omhandlede overfladebelægningsmateriale, hvilken fremgangsmåde er ejendommelig ved 10 (A) dannelse af en emulsion af fra ca. 50 til 70 vægt% bitumen under tilstedeværelse af fra ca. 0,3 til ca.The invention also relates to a process for the preparation of the present coating material which is characterized by the formation of an emulsion of from approx. 50 to 70% by weight bitumen in the presence of from about 0.3 to approx.
3,0% efter vægt af en C^2~^20 a~°^e^^nsu^onsyref °9T (B) grundig blanding af fra ca. 15 til ca. 25 vægtdele af denne emulsion med 100 vægtdele mineralsk aggre-15 gat og tilstrækkeligt vand til dannelse af en vandig slurry, hvilken blanding udføres under tilstedeværelse af fra ca. 0,1 til ca. 5. vægtdele Portlandcement eller kalk som afbindingsinitiator. Det har vist sig, at fra 0,25 til 0,9 vægt% af sulfonatemulgatoren er særdeles 20 effektiv med hensyn til dannelse af bitumenemulsionen i vand ved anvendelse af kendte emulgeringsfremgangsmåder.3.0% by weight of a C ^ 2 ~ ^ 20 a ~ ° ^ e ^^ nsu ^ acid acid ° 9T (B) thorough mixing of from about. 15 to approx. 25 parts by weight of this emulsion with 100 parts by weight of mineral aggregate and sufficient water to form an aqueous slurry, which mixture is carried out in the presence of from ca. 0.1 to approx. 5. parts by weight of Portland cement or lime as a setting initiator. It has been found that from 0.25 to 0.9% by weight of the sulfonate emulsifier is extremely effective in forming the bitumen emulsion in water using known emulsification methods.
Alle de i handelen forekommende vejbelægningsasfalttyper egner sig som et passende bitumen. Der tilsættes tilstrækkelig base, såsom NaOH eller KOH, til sikring af, 25 at en væsentlig del af olefinsulfonsyren findes i form af et ioniseret salt. Fortrinsvis vil pH af blandingen ligge i området fra 7 til 12. Emulgering af det bitu-minøse bindemiddel udføres på kendt måde, f.eks. ved brug af en kolloidmølle.All commercially available road pavement types are suitable as a suitable bitumen. Sufficient base, such as NaOH or KOH, is added to ensure that a substantial portion of the olefin sulfonic acid is in the form of an ionized salt. Preferably, the pH of the mixture will range from 7 to 12. Emulsification of the bituminous binder is carried out in a known manner, e.g. using a colloid mill.
30 Ved fremstilling af disse emulsioner til brug ved slurry seal-blandinger, er de mest praktiske blandinger de, som indeholder fra ca. 55 til ca. 65 vægt% af et vejbelægningsbitumen, sædvanligvis asfalt, fra ca. 0,25 til ca. 0,75% af olefinsulfonatemulgatoren og eventuelt 35 kan fra ca. 0,1 til ca. 0,3% phenolsulfonsyre tilsættes som adhssionshjælpemiddel.In preparing these emulsions for use in slurry seal mixtures, the most practical mixtures are those containing from ca. 55 to approx. 65% by weight of a road surface bitumen, usually asphalt, from approx. 0.25 to approx. 0.75% of the olefin sulfonate emulsifier and optionally 35 may be from ca. 0.1 to approx. 0.3% phenolic sulfonic acid is added as an adhesive aid.
Ved dannelsen af slurry seals kan Portlandcement eller læsket kalk eller en blanding deraf først sættes 7 14303Λ til aggregatet i mængder på fra ca. 0,25 til ca. 2% beregnet på basis af vægten af tørt aggregat og blandes grundigt i ca. 10 sekunder eller mere, eller det kan alternativt tilsættes senere med emulsionen. Ved arbejde 5 med aggregater med et lille overfladeareal kan op til 5% af fyldstoffet, beregnet på basis af vægten af tørt aggregat, anvendes således. Dernæst blandes den fugtede aggregat/fyIdstofblanding og vand, for eksempel i en for-ælter, med emulsionen i en mængde på fra ca. 10 til 10 ca. 30% af vægten af det tørre aggregat og omrøres grundigt til dannelse af en spredelig vandig slurry seal.In the formation of slurry seals, Portland cement or slaked lime or a mixture thereof may first be added to the aggregate in amounts of from approx. 0.25 to approx. 2% calculated on the basis of the weight of dry aggregate and mixed thoroughly for approx. 10 seconds or more, or it can alternatively be added later with the emulsion. Thus, for work 5 with aggregates with a small surface area, up to 5% of the filler, based on the weight of dry aggregate, can be used. Next, the moistened aggregate / feed mixture and water, for example in a pre-parent, are mixed with the emulsion in an amount of from approx. 10 to 10 approx. 30% by weight of the dry aggregate and thoroughly stirred to form a dispersible aqueous slurry seal.
Når denne først er dannet, bør den med det samme påføres på den vej eller vejbelægning, der skal have overflade eller repareres, ved udspredning fta f.eks. en sprede-15 kasse eller med river eller skrabere.Once formed, it should be immediately applied to the road or road surface that needs to be surface or repaired by spreading fta e.g. a spreading box or with rakes or scrapers.
På grund af den særlige beskaffenhed af den an-ioniske emulgator for det bituminøse vejbelægningsbindemiddel og den heldige kombination af flere bestanddele i slurry seal-blandingen ifølge opfindelsen, bliver det 20 muligt at udføre passende og grundig blanding uden sammenløbning af emulsionen. Derefter finder hurtig demul-gering sted på grund af afbindingsinitiatorens "udløsende" effekt, hvilken afbindingsinitiator fortrinsvis tilsættes til aggregatet før blanding med den anioniske 25 bituminøse emulsion, selv om den kan tilsættes på et hvilket som helst tidspunkt under denne blanding, og slurry seal-belægningen afbinder overraskende hurtigt til en sort sammenhængende belægning, og bliver regn-sikker på så kort tid som 15 minutter, og inden for et 30 tidsrum af fra ca. 15 minutter til ca. 1 time har overfladen opnået én sådan trækstryke, at den er parat til åbning for lettere køretøjer, herunder biler.Due to the particular nature of the bituminous road coating binder anionic emulsifier and the successful combination of several ingredients in the slurry seal blend according to the invention, it becomes possible to carry out appropriate and thorough blending without confluence of the emulsion. Then, rapid demulsification takes place due to the "triggering" effect of the stripper initiator, which stripper initiator is preferably added to the aggregate prior to mixing with the anionic bituminous emulsion, although it can be added at any time during this mixing and slurry sealant. the coating surprisingly quickly binds to a black cohesive coating and becomes rain-proof in as short a time as 15 minutes, and within a 30 time period of approx. 15 minutes to approx. For about 1 hour, the surface has achieved one such draw pressure that it is ready to open for lighter vehicles, including cars.
Den stabilitet, der opnås med de her omhandlede bituminøse emulsioner under blandingen til dannelse af cg 35 under påførsien i form af en slurry seal, uanset beskaffenheden af elektrisk overfladeladning på aggregatet, efterfulgt af en hurtig afbinding af slurry seal-belægningen er helt uventet og ikke fuldstændig forstået.The stability obtained with the present bituminous emulsions during the mixture to form cg 35 during application in the form of a slurry seal, irrespective of the nature of electrical surface charge on the aggregate, followed by a rapid unbinding of the slurry seal coating is quite unexpected and not completely understood.
8 1430348 143034
Imidlertid er det en kendsgerning, at denne blanding, hvor brugstiden, dvs. det tidsrum, i hvilket materialet kan forarbejdes uden størkning, af slurry seal-blandin-gen varer 2-4 timer, og denne hurtige afbinding af den 5 anioniske bituminøse emulsion tilfredsstiller et længe næret ønske inden for vejbelægningsteknikken og er ukendt i tidligere teknik.However, it is a fact that this mixture, where the useful life, ie. the length of time during which the material can be processed without solidification of the slurry seal mixture lasts 2-4 hours, and this rapid binding of the 5 anionic bituminous emulsion satisfies a long nourished desire in the road coating technique and is unknown in the prior art.
Der er blevet udført et stort antal prøver med bituminøse emulsioner, der er fremstillet med anionaktive 10 salte af α-olefinsulfonsyrer og blandet til vandige op-slemninger med faste partikelformige materialer såsom mineralske aggregater og gummislibeaffald, i overensstemmelse med den foregående beskrivelse af opfindelsen.A large number of samples with bituminous emulsions prepared with anionic salts of α-olefin sulfonic acids have been performed and mixed into aqueous slurries with solid particulate materials such as mineral aggregates and rubber abrasives, in accordance with the foregoing description of the invention.
I en repræsentativ serie prøver, der illustrerer 15 fremgangsmåden ifølge opfindelsen, blev ca. 60 vægt% af en typisk vejbelægningsasfalt penetrationstal 50-60 ved 22°C) emulgeret i vand, idet der til emulgering deraf anvendtes 0,5 vægt% af forskellige a-olefinsulfonsyrer, 0,2 vægt% phenolsulfonsyre og 0,06 vægt% natriumhydroxid.In a representative series of samples illustrating the method of the invention, approx. 60% by weight of a typical paving asphalt penetration number 50-60 at 22 ° C) emulsified in water using 0.5% by weight of various α-olefin sulfonic acids, 0.2% by weight phenolic sulfonic acid and 0.06% by weight sodium hydroxide .
20 Ved hver prøve blev benyttet prøver på 500 gram af to forskellige siliciumdioxid aggregattyper og forskellige graderinger. Det alkaliske fyldstof, der blev tilsat, var Portlandcement i en mængde på fra ca. 0,25 til ca. 2 . vægt%. Hver aggregatprøve blev så blandet 25 med emulsionen, hvis vægt udgjorde 25 vægt%, beregnet på grundlag af vægten af tørt aggregat, og med fra ca. 6 til ca. 12 vægt% vand, også beregnet på grundlag af vægten af aggregatet, idet mængden af vand afhænger af, om der anvendes et grovere eller finere aggregat til fremstilling 30 af blandingen. Blandingen blev hældt ud, således at den fyldte et rundt blikdåselåg, som var 15,5 cm. i diamater og 2 cm dybt. Den hurtighed, med hvilken den resulterende slurry seal-belægning opnåede traskstyrke, blev bestemt ved berøring af kagens overflade med en spatel.20 For each sample, 500 grams of two different silica aggregate types and different grades were used. The alkaline filler added was Portland cement in an amount of about 0.25 to approx. 2. weight%. Each aggregate sample was then mixed with the emulsion, the weight of which was 25% by weight, based on the weight of dry aggregate, and with from about 6 to approx. 12% by weight of water, also calculated on the basis of the weight of the aggregate, the amount of water depending on whether a coarser or finer aggregate is used to prepare the mixture. The mixture was poured out to fill a 15.5 cm round tin can lid. in diameters and 2 cm deep. The speed with which the resulting slurry seal coating achieved traction strength was determined by touching the cake surface with a spatula.
35 9 14303435 9 143034
Eksempel 1.Example 1.
65 vægtdele asfalt blev emulgeret i vand under anvendelse af 0,5 dele C^-C-^ α-olefinsulfonsyre, 0,2 vægt% af phenolsulfonsyre og 0,06 vægt% natriumhydroxid 5 som beskrevet i det foregående. Ved blanding af aggregatet blev det bemærket, at blandingens brugstid varede fra 1 til 2 minutter. Emulsionen løb hurtigt sammen inden for 4 til 8 minutter, når den blev lagt på et underlag og slurry seal-belægningen afbandt fuldstændigt som 10 en sammenhængende sort overflade i løbet af ca. 1 time, hvilket er enestående ved anioniske slurry seal-belæg-ninger.65 parts by weight of asphalt was emulsified in water using 0.5 parts of C 1 When mixing the aggregate, it was noted that the mixing time of the mixture lasted from 1 to 2 minutes. The emulsion quickly collapsed within 4 to 8 minutes when applied to a substrate and the slurry seal coating completely disintegrated as a cohesive black surface over approx. 1 hour, which is unique in anionic slurry seal coatings.
Eksempel 2.Example 2.
15 63 vægtdele asfalt blev igen emulgeret som i den foregående prøve, men denne gang anvendtes 0,5 dele af en c15_c^g α-olefinsulfonsyre med gennemsnitsmolekylvægt 343. Der blev igen observeret en tilfredsstillende brugstid under blandingen af aggregatet. Slurry seal-be-20 lægningen var fuldstændig afbundet i løbet af ca. 1 time.15 63 parts by weight of asphalt was again emulsified as in the previous sample, but this time 0.5 parts of an average molecular weight of c15_c ^ g α-olefin sulfonic acid 343. A satisfactory operating time was observed again during mixing of the aggregate. The slurry seal coating was completely de-bonded over approx. 1 hour.
Eksempel 3.Example 3
I dette tilfælde blev anvendt 0,5 dele af en C^j--C2q α-olef insulf onsyre, idet de andre mængder var de 25 samme som i de to foregående prøver. Blandingens brugstid var god og af størrelsesordenen 2 til 4 minutter. Sammenløbning af emulsionen og afbindingen af slurry seal-belægningen skete noget langsommere i dette tilfæl·-de. Imidlertid var afbindingen fuldført tilfredsstillen-30 de i løbet af ca. 1 time.In this case, 0.5 parts of a C ^ j-C₂q α-oleic sulfonic acid were used, the other amounts being the same as in the previous two samples. The use time of the mixture was good and of the order of 2 to 4 minutes. The confluence of the emulsion and the bonding of the slurry seal coating occurred somewhat more slowly in this case. However, the bonding was completed satisfactorily over approx. 1 hour.
Eksempel 4.Example 4
I denne prøve var den til emulgering af asfalt som beskrevet i de foregående prøver anvendte a-olefin-"In this test, the as-emulsified asphalt as described in the previous samples was α-olefin- "
35 sulf onsyre en ækvimolær blanding af °9 C15""C2Q35 sulfonic acid an equimolar mixture of ° 9 C15 "" C2Q
α-olefinsulfonsyrer. Blandingens brugstid og afbindingstiden var i hovedsagen magen til de i prøve 2 observerede.α-olefinsulfonsyrer. The use time of the mixture and the setting time were substantially similar to those observed in Sample 2.
143034 ίο143034 ίο
Den næste prøve er udført for at vise, at selv om tilsætning af adhæsionshjælpemidler til emulsionen somme tider er ønskelig, især i tilfældet med phenolsulfonsyre, der kan forøge adhæsion og lette påføreisen af slurry 5 seal-belægningen er tilstedeværelsen af sådanne hjælpemidler ikke nødvendige. Bituminøse emulsioner, fremstillet ifølge opfindelsen med hjælp af α-olefinsulfonater, har vist sig at have lignende, tilfredsstillende lang brugstid, som muliggør effektiv blanding af dem med 10 aggregaterne og påførsel af dem på de vejflader, der kræver reparation.The next test is performed to show that although the addition of adhesive aids to the emulsion is sometimes desirable, especially in the case of phenolic sulfonic acid which can enhance adhesion and facilitate application of the slurry 5 seal coating, the presence of such aids is not necessary. Bituminous emulsions prepared according to the invention with the aid of α-olefin sulphonates have been found to have similar, satisfactory long service life, enabling efficient mixing of them with the aggregates and applying them to the road surfaces requiring repair.
Eksempel 5.Example 5
I denne prøve blev 63 vægtdele vejbelægningsas-15 falt emulgeret med vand ved hjælp af 0,8 dele af en C^2"c^g tt-olefinsulfonsyre, idet der anvendtes natriumhydroxid som den emulgerende base. Betingelserne ved denne prøve er anderledes end de, der er angivet i prøve 1.In this sample, 63 parts by weight of road pavement asphalt was emulsified with water by 0.8 parts of a C2-2 ctg olefin sulfonic acid, using sodium hydroxide as the emulsifying base. The conditions of this sample are different listed in Sample 1.
Der var ingen adhæsionshjælpemidler af nogen art til 20 stede. Ved blanding med aggregatet lå brugstiden i området fra 1 til 2 minutter. Når slurry seal-belægningen var påført, afbandt den til en god, sej, sammenhængende belægning i løbet af ca. 1 time.There were no adhesive aids of any kind for 20 present. When mixed with the unit, the usage time ranged from 1 to 2 minutes. Once the slurry seal coating was applied, it bonded to a good, cool, cohesive coating over approx. 1 hour.
25 Eksempel 6.Example 6
Denne prøve blev udført til sammenligning med de i prøve 5 observerede resultater. Forholdene mellem de til dannelse af slurry seal-blandingen anvendte komponenter var de samme, idet der dog blev tilsat 0,3 dele 30 phenylsulfonsyre. Brugstiden havde igen størrelsesordenen 1 til 3 minutter. Bearbejdeligheden af slurry seal-blandingen, det vil sige den lethed, hvormed den kunne hældes ud, påføres og jævnes, var noget forbedret i forhold til prøve 5. Overfladebelægningen afbandt til en 35 sej, sort belægning i løbet af 1 time.This test was performed for comparison with the results observed in Sample 5. The proportions of the components used to form the slurry seal mixture were the same, with the addition of 0.3 parts of phenylsulfonic acid. The use time again was of the order of 1 to 3 minutes. The workability of the slurry seal mixture, that is, the ease with which it could be poured, applied and smoothed, was somewhat improved over Sample 5. The surface coating bonded to a 35 cool black coating over 1 hour.
U3Q34 11U3Q34 11
Markprøve.Field Trial.
I denne særlige prøve for vejbelægningsblandingen, fremstillet ifølge opfindelsen og udført i praksis, blev et stykke slidt vej flade, som var 68 cm bredt og 12 m 5 langt behandlet med slurry seal, idet der anvendtes følgende blanding: 25 dele asfaltemulsion, 100 dele aggregat, 11 dele opslæmningsvand, og lo 0,75 dele Portlandcement.In this particular test for the pavement mixture, made according to the invention and carried out in practice, a piece of worn road surface 68 cm wide and 12 m 5 long was treated with slurry seal, using the following mixture: 25 parts asphalt emulsion, 100 parts aggregate , 11 parts of slurry water, and lo 0.75 parts of Portland cement.
Enulsionen blev fremstillet ved emulgering af 65 vagt% af blandet Califomia-asfalt, der havde et syretal på 1,5, med 0,5 vægt% -olefinsulfonsyre cmhandlet i krav 1, 0,2 vægt% phe- nolsulfonsyre og 0,06 vægt% natriumhydroxid. Blandingen 15 af emulsion og aggregat havde en brugstid på ca. 3 minutter. Den blev øjeblikkeligt påført ved hjælp af skrabere og emulsionen løb sammen i løbet af 4 til 8 minutter. Belægningen afbandt fuldstændigt i løbet af ca. 30 minutter til en sort, sej overfladebelægning, der så blev 20 åbnet for kørende trafik af automobiler og lastbiler.The enulsion was prepared by emulsifying 65% by weight of mixed Califomia asphalt having an acid number of 1.5, with 0.5% by weight olefin sulfonic acid as claimed in claim 1, 0.2% by weight phenolic sulfonic acid and 0.06% by weight % sodium hydroxide. The mixture 15 of emulsion and aggregate had a useful life of approx. 3 minutes. It was immediately applied with the help of scrapers and the emulsion ran together in 4 to 8 minutes. The coating completely dissolved within approx. 30 minutes for a black, cool surface coating, which then opened 20 for driving traffic of cars and trucks.
Efter ti uger kunne der ikke observeres nogen kendelig beskadigelse af arealet, som var en del af en kørevej til et olieraffinaderis hovedstation med en gennemsnitlig tæthed af tungt ladet lastbiltrafik på 3 til 4 25 køretøjer i timen.After ten weeks, no apparent damage to the area could be observed, which was part of a roadway to an oil refinery's main station with an average density of heavily laden truck traffic of 3 to 4 25 vehicles per hour.
Fremstilling af overflader i rekreative områder med hurtig afbindende anioniske emulsioner.Preparation of surfaces in recreational areas with fast-binding anionic emulsions.
På lignende måde som ved fremstilling af slurry 30 seal-belægningerne blev der fremstillet et underlag for en kørebane ved anvendelse af α-olefinsulfonatet fra eksempel 1. Det faste materiale omfatter beregnet på grundlag af den totale vægt af blandingen 28,0% gummi-slibeaffald, 28,0% sand og 0,3% bentonitler. Der blev 35 tilsat 1,15% trinatriumphosphat. I blandingen blev anvendt 1,6 vægt% af en syntetisk gummi-latex-emulsion og 0,5 vægt% af et organisk magnesiumsaltafskumningsmiddel. 2,4% læsket kalk blev benyttet som afbindings-Similar to the preparation of the slurry 30 seal coatings, a substrate was prepared for a roadway using the α-olefin sulfonate of Example 1. The solid material comprises, based on the total weight of the mixture, 28.0% rubber abrasive waste. , 28.0% sand and 0.3% bentonite clay. 1.15% trisodium phosphate was added. 1.6% by weight of a synthetic rubber latex emulsion and 0.5% by weight of an organic magnesium salt foaming agent were used. 2.4% slaked lime was used as the setting agent.
Claims (4)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67274667A | 1967-10-04 | 1967-10-04 | |
| US67274667 | 1967-10-04 | ||
| US75713768A | 1968-09-03 | 1968-09-03 | |
| US75713768 | 1968-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK143034B true DK143034B (en) | 1981-03-16 |
| DK143034C DK143034C (en) | 1981-10-19 |
Family
ID=27100814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK477768A DK143034C (en) | 1967-10-04 | 1968-10-03 | SURFACE COATING MATERIAL AND PROCEDURE FOR ITS MANUFACTURING |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4835338B1 (en) |
| DE (1) | DE1800829C3 (en) |
| DK (1) | DK143034C (en) |
| FR (1) | FR1589212A (en) |
| NL (1) | NL160323C (en) |
| NO (1) | NO135475C (en) |
| SE (1) | SE348487B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2573455B1 (en) * | 1984-11-21 | 1986-12-26 | Colas Sa | PROCESS FOR OBTAINING SURFACE ROAD COATINGS BY SPREADING AQUEOUS BITUMEN EMULSIONS AND COATINGS OBTAINED |
| FR2577545B1 (en) * | 1985-02-15 | 1987-03-27 | Elf France | CATIONIC EMULSIONS OF BITUMINOUS BITUMEN / POLYMER BINDERS AND CATIONIC EMULSIFIER SYSTEM FOR USE IN PARTICULAR FOR OBTAINING SUCH EMULSIONS |
| FR2619132B1 (en) * | 1987-08-07 | 1991-08-16 | Colas Sa | PROCESS FOR OBTAINING A SOIL COVERING BASED ON BITUMINOUS BINDER AND PRODUCT OBTAINED |
| DE19812246C2 (en) * | 1998-03-20 | 2001-06-28 | Pci Augsburg Gmbh | Flowable, hydraulically setting mortar system and its use |
| FR3013044A1 (en) * | 2013-11-13 | 2015-05-15 | Rhodia Operations | LIQUID ADHESIVEN DOPES FOR BITUMINOUS COILS |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK49296C (en) * | 1932-07-11 | 1934-09-24 | Barber Asphalt Co | Method for Manufacturing a Bituminous Pavement Material. |
| US2862831A (en) * | 1953-07-01 | 1958-12-02 | California Research Corp | Quick-breaking bituminous emulsions having increased adhesion to mineral aggregate |
| GB864102A (en) * | 1958-08-08 | 1961-03-29 | Shell Int Research | Improvements in or relating to asphaltic bitumen emulsions |
| US3350321A (en) * | 1963-01-29 | 1967-10-31 | Exxon Research Engineering Co | Stable fluid emulsions of asphalt and other oleoresinous materials and preparation thereof |
| FR1534885A (en) * | 1967-06-21 | 1968-08-02 | Exxon Standard Sa | Emulsifying agents for anionic bitumen emulsions |
-
1968
- 1968-10-03 SE SE1335868A patent/SE348487B/xx unknown
- 1968-10-03 DK DK477768A patent/DK143034C/en not_active IP Right Cessation
- 1968-10-03 DE DE19681800829 patent/DE1800829C3/en not_active Expired
- 1968-10-03 NO NO390768A patent/NO135475C/no unknown
- 1968-10-04 NL NL6814267A patent/NL160323C/en not_active IP Right Cessation
- 1968-10-04 FR FR1589212D patent/FR1589212A/fr not_active Expired
- 1968-10-04 JP JP43071907A patent/JPS4835338B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DK143034C (en) | 1981-10-19 |
| NL6814267A (en) | 1969-04-09 |
| JPS4835338B1 (en) | 1973-10-27 |
| FR1589212A (en) | 1970-03-23 |
| NL160323B (en) | 1979-05-15 |
| NO135475B (en) | 1977-01-03 |
| DE1800829C3 (en) | 1982-04-29 |
| DE1800829A1 (en) | 1969-04-30 |
| NO135475C (en) | 1977-04-13 |
| SE348487B (en) | 1972-09-04 |
| DE1800829B2 (en) | 1981-02-26 |
| NL160323C (en) | 1979-10-15 |
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