WO1993009295A1 - Procede de preparation d'un beton emulsionne ou asphaltique utilise comme materiau pour routes - Google Patents

Procede de preparation d'un beton emulsionne ou asphaltique utilise comme materiau pour routes Download PDF

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Publication number
WO1993009295A1
WO1993009295A1 PCT/DK1992/000315 DK9200315W WO9309295A1 WO 1993009295 A1 WO1993009295 A1 WO 1993009295A1 DK 9200315 W DK9200315 W DK 9200315W WO 9309295 A1 WO9309295 A1 WO 9309295A1
Authority
WO
WIPO (PCT)
Prior art keywords
bitumen
emulsion
fraction
binding agent
stone
Prior art date
Application number
PCT/DK1992/000315
Other languages
English (en)
Inventor
Leo Hove
Original Assignee
Leo Hove
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8108092&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1993009295(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Leo Hove filed Critical Leo Hove
Priority to DK92922931T priority Critical patent/DK0624214T3/da
Priority to EP92922931A priority patent/EP0624214B1/fr
Priority to DE69228321T priority patent/DE69228321T2/de
Publication of WO1993009295A1 publication Critical patent/WO1993009295A1/fr
Priority to NO941545A priority patent/NO305567B1/no
Priority to FI941957A priority patent/FI941957A/fi
Priority to GR990401134T priority patent/GR3030054T3/el

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1068—Supplying or proportioning the ingredients

Definitions

  • asphalt-concrete for use as a road material.
  • the present invention relates to a method of preparing an emulsion- or asphalt-concrete for use as a road material.
  • the technique is based on the use of a bitumen emulsion in admixture with a graded stone material.
  • An aqueous bitumen emulsion has no particular bonding ability of its own, but in time a so-called 'breaking' of the emulsion occurs, whereby the emulgated bitumen fractions float together and the water is segregated, such that the bitumen may thereafter act as a binding agent that can stick to the stone surfaces and bond these together.
  • By means of different additives it is possible to control rather accurately when this breaking should take place after the mixing operation. It is achievable, therefore, that the mixture can be prepared and transported to the laying area and be laid-out therein prior to the breaking having proceeded to the point where the material will not thereafter be suitably easily shapeable.
  • bitumenous binding agent It is the purpose of the invention to provide a method, by which it will be practically possible to make use of an emulsion based on a noticeably harder bitumen i.e. a bitumen of higher viscosity, such that the laid out road layer can exhibit a considerably increased strength and yet be suitably shapeable in connection with the laying-out, without thereafter being sensible to any washing out of the bitumenous binding agent.
  • the invention is based on the consideration that the material as a whole will be supple and shapeable as long as the fine stone fraction has not been bonded by a high viscid bitumen, whether or not the stones in the coarse fraction have already been wrapped by a more or less broken emulsion based on a high viscid bitumen.
  • the finally admixed emulsion will make the entire mixture supple and formable, i.e. the mixture can be laid out evenly and with ordinary equipment, although the stones of the coarse fraction have already been coated with a layer of broken, hard bonding bitumen.
  • the coarse stone fraction is heated to such a high temperature, by which the stones can be totally coated by the initially added high viscid bitumen, which, itself, is heated to assume a viscosity suitably low for this purpose.
  • the fine fraction is added to the mixer, in either cold or warm condition all according to the applied low viscid bitumen, which is also added; this bitumen should have a temperature high enough to condition such a low viscosity that the bitumen can effectively coat the stone particles of the fine fraction.
  • this temperature should be somewhat lower than the
  • this bitumen may have a viscosity e.g. in the range of 5000 - 75000 mm 2 /sec at 60° C.
  • the viscosity of the relevant bitumen should normally be somewhat lower that 3000 mm 2 /sec, but under special circumstances this figure may be higher, e.g. up to 4-5000, though still noticeably smaller than the viscosity figure of the applied high viscid bitumen.
  • the weight ratio between the two kinds of bitumen may vary all according to the dispensary og the material mixture, but a typical ratio can be 60%PC% high viscid and 40%ZC% low viscid bitumen.
  • a typical ratio can be 60%PC% high viscid and 40%ZC% low viscid bitumen.
  • the applied mixing plant can be a simple batch mixer or a continuous throughflow mixer, but it would be possible to use separate mixers for the mixing of the respective binding agents into the respective stone fractions and a separate mixer for the bringing together of the thus pretreated fractions.
  • the hard emulsion can be dosed in accordance with the desired maximum carrying capacity of the stones of the coarse fraction, while a dilution of the emulsion would cause a weakening of this carrying capacity and thereby of the possibility of an efficient exploitation of the high viscid bitumen.
  • finishing and delivering of the material mixture from the mixing plant in order to thereby counteracing later problems with respect to washing out of the emulsion after the laying out of the material or already during the transportation thereof to the working place. It is less important whether the soft emulsion is added briefly before, concurrently with, or briefly after the addition of the fine stone fraction.
  • bitumenous binding agent having a quite low viscosity, e.g MB 1500-2000 at 60° C.
  • This additive may be adminestered in cold condition. and it will render the material well shapeable. In so fas as the migration with the high viscid bitumen will take place soon after the laying out, a desirable result will be achievable also in this manner, even when the resulting bitumen percentage of the material may be still higher by the use of the 'soft' emulsion for the fine stone fraction.
  • Stone material 60 weight percent of 4-16 mm coarse fraction
  • Binding agent emulsion Type 1: BE65R/20.000
  • Type 2 BE65M/3.000.
  • BE stands for "bitumen emulsion”
  • 65 for the admixtury percentage of the bitumen
  • R for a rapidly breaking emulsion
  • M for a medium breaking emulsion
  • the breaking time for the emulsion type 1 on the coarse fraction type of stones is a certain amount of seconds, e.g. 12-14 seconds.
  • the coarse fraction is introduced currently and without heating, into a flow-through mixer, at the
  • the emulsion of the said type 1 is added by a flow corresponding to a weight amount of 7-8 %PC% of the stone weight.
  • the aqueous solution of the emulsion will be distributed evenly around the stones in few seconds.
  • a flow of the fine stone fraction and emulsion type 2 at a weight ratio of some 100:8 is added.
  • the total product is conveyed further in the mixer for intensive mixing through additional 20-30 seconds, corresponding approximately to the breaking time of the emulsion type 2, whereafter the mixture is let out in a flow to a carrier truck.
  • the truck takes the collected material portion to a delivery apparatus at the working site, where the laying out is effected not later than 4-5 hours after the preparation of the material mixture.
  • the laid out emulsion concrete there will be a residual bitumen percentage of
  • Stone material 60 weight percent of 5-18 mm coarse fraction
  • Binding agent Type 1: B 180
  • Type 2 MB 3.000
  • the fine fraction is added, this fraction not having to be heated, and also 60 kg binding agent type 2, heated to roughly 90° C.
  • the mixture portion of about 3 tons has been homogenously mixed, e.g. after 25 seconds, the charge is let out to carrier truck, and care is taken that the mixture is laid out not more than 5-6 hours after its preparation.
  • the delivery temperature in the mixer can be some 60° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Paving Structures (AREA)
  • Colloid Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Cosmetics (AREA)
  • Tires In General (AREA)

Abstract

Dans de la production de béton émulsionné destiné à être posé sous forme de matériau routier, il est habituel de mélanger les morceaux de pierre à un liant constitué d'une émulsion bitumineuse à base de bitume relativement peu visqueux facilitant la mise en forme du matériau pendant l'opération de pose. On a prévu de soumettre les morceaux grossiers de pierre à un traitement préalable avec une émulsion à rupture rapide et à base de bitume fortement visqueux, puis d'ajouter le mélange de petits morceaux de pierre et de liant peu visqueux. On arrive ainsi à maintenir l'aptitude du matériau à être mis en forme, tout en assurant une liaison sensiblement améliorée du matériau posé.
PCT/DK1992/000315 1991-10-30 1992-10-30 Procede de preparation d'un beton emulsionne ou asphaltique utilise comme materiau pour routes WO1993009295A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK92922931T DK0624214T3 (da) 1991-10-30 1992-10-30 Fremgangsmåde til at fremstille en emulsions- eller asfaltbeton til anvendelse som vejmateriale
EP92922931A EP0624214B1 (fr) 1991-10-30 1992-10-30 Procede de preparation d'un beton emulsionne ou asphaltique utilise comme materiau pour routes
DE69228321T DE69228321T2 (de) 1991-10-30 1992-10-30 Verfahren zum vorbereiten von einem emulsion- oder asphaltbeton zur verwendung als strassenbaumaterial
NO941545A NO305567B1 (no) 1991-10-30 1994-04-27 FremgangsmÕte for fremstilling av en emulsjons- eller asfaltmasse som utlegges som veimateriale
FI941957A FI941957A (fi) 1991-10-30 1994-04-28 Menetelmä valmistaa emulsio- tai asfalttibetonia käytettäväksi tiemateriaalina
GR990401134T GR3030054T3 (en) 1991-10-30 1999-04-26 A method of preparing an emulsion- or asphalt-concrete for use as a road material.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK1793/91 1991-10-30
DK911793A DK179391D0 (da) 1991-10-30 1991-10-30 Fremgangsmaade til fremstilling af emulsionsbeton

Publications (1)

Publication Number Publication Date
WO1993009295A1 true WO1993009295A1 (fr) 1993-05-13

Family

ID=8108092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1992/000315 WO1993009295A1 (fr) 1991-10-30 1992-10-30 Procede de preparation d'un beton emulsionne ou asphaltique utilise comme materiau pour routes

Country Status (11)

Country Link
EP (1) EP0624214B1 (fr)
AT (1) ATE176286T1 (fr)
AU (1) AU2902692A (fr)
CA (1) CA2122497A1 (fr)
DE (1) DE69228321T2 (fr)
DK (2) DK179391D0 (fr)
ES (1) ES2129459T3 (fr)
FI (1) FI941957A (fr)
GR (1) GR3030054T3 (fr)
NO (1) NO305567B1 (fr)
WO (1) WO1993009295A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996037660A1 (fr) * 1995-05-24 1996-11-28 Vejtek International A/S Procede relatif a la preparation et a la production de materiaux bitumineux pour une application a froid dans les travaux de voirie ou pavage
EP0781887A1 (fr) * 1995-12-28 1997-07-02 Colas Procédé d'obtention à froid d'enrobés denses bitumineux et dispositif pour la mise en oeuvre de ce procédé
US5788756A (en) * 1992-09-14 1998-08-04 Ceca S.A. Paving composition/building composition including a film forming bitumen in-water mixed emulsion
WO2014189385A3 (fr) * 2013-05-22 2015-01-29 Multivector As Procédé et dispositif permettant de fabriquer un matériau de produit à composants multiples

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010017924U1 (de) * 2010-12-06 2013-03-26 Joachim Eberhardt Zum Kalteinbau geeigneter Asphaltbaustoff

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB334588A (en) * 1929-06-06 1930-09-08 Edwin Corby Wallace Improvements relating to bituminous paving compositions and methods of making same
WO1983000700A1 (fr) * 1981-08-25 1983-03-03 Karl Gunnar Ohlson Procede et dispositif de production de beton asphaltique
WO1987003317A1 (fr) * 1985-11-29 1987-06-04 Nodest Vei A/S Procede et appareil pour melanger le gravier et le bitume
US4978393A (en) * 1987-11-17 1990-12-18 Rene Maheas Process for the manufacture of stockable dense road asphalts
EP0491107A1 (fr) * 1990-12-19 1992-06-24 Aktiebolaget Nynäs Petroleum Composition à deux composants contenant une émulsion bitumineuse et un additif de rupture, son procédé de préparation et l'utilisation de cette composition.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB334588A (en) * 1929-06-06 1930-09-08 Edwin Corby Wallace Improvements relating to bituminous paving compositions and methods of making same
WO1983000700A1 (fr) * 1981-08-25 1983-03-03 Karl Gunnar Ohlson Procede et dispositif de production de beton asphaltique
WO1987003317A1 (fr) * 1985-11-29 1987-06-04 Nodest Vei A/S Procede et appareil pour melanger le gravier et le bitume
US4978393A (en) * 1987-11-17 1990-12-18 Rene Maheas Process for the manufacture of stockable dense road asphalts
EP0491107A1 (fr) * 1990-12-19 1992-06-24 Aktiebolaget Nynäs Petroleum Composition à deux composants contenant une émulsion bitumineuse et un additif de rupture, son procédé de préparation et l'utilisation de cette composition.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5788756A (en) * 1992-09-14 1998-08-04 Ceca S.A. Paving composition/building composition including a film forming bitumen in-water mixed emulsion
WO1996037660A1 (fr) * 1995-05-24 1996-11-28 Vejtek International A/S Procede relatif a la preparation et a la production de materiaux bitumineux pour une application a froid dans les travaux de voirie ou pavage
AU698694B2 (en) * 1995-05-24 1998-11-05 Esha Holding B.V. A method of preparing and producing asphalt materials to be laid out as a cold road construction or paving material
EP0781887A1 (fr) * 1995-12-28 1997-07-02 Colas Procédé d'obtention à froid d'enrobés denses bitumineux et dispositif pour la mise en oeuvre de ce procédé
FR2743095A1 (fr) * 1995-12-28 1997-07-04 Colas Sa Procede d'obtention a froid d'enrobes denses bitumineux et dispositif pour la mise en oeuvre de ce procede
WO2014189385A3 (fr) * 2013-05-22 2015-01-29 Multivector As Procédé et dispositif permettant de fabriquer un matériau de produit à composants multiples
US10159945B2 (en) 2013-05-22 2018-12-25 Waister As Method and a device for making a multi-components product material

Also Published As

Publication number Publication date
EP0624214B1 (fr) 1999-01-27
NO305567B1 (no) 1999-06-21
ATE176286T1 (de) 1999-02-15
EP0624214A1 (fr) 1994-11-17
NO941545L (no) 1994-04-27
DE69228321D1 (de) 1999-03-11
DK0624214T3 (da) 1999-09-13
GR3030054T3 (en) 1999-07-30
DE69228321T2 (de) 1999-09-23
NO941545D0 (fr) 1994-04-27
FI941957A0 (fi) 1994-04-28
DK179391D0 (da) 1991-10-30
FI941957A (fi) 1994-04-28
AU2902692A (en) 1993-06-07
ES2129459T3 (es) 1999-06-16
CA2122497A1 (fr) 1993-05-13

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