EP0049260A1 - Procede d'appret pour le revetement d'une route. - Google Patents

Procede d'appret pour le revetement d'une route.

Info

Publication number
EP0049260A1
EP0049260A1 EP81900934A EP81900934A EP0049260A1 EP 0049260 A1 EP0049260 A1 EP 0049260A1 EP 81900934 A EP81900934 A EP 81900934A EP 81900934 A EP81900934 A EP 81900934A EP 0049260 A1 EP0049260 A1 EP 0049260A1
Authority
EP
European Patent Office
Prior art keywords
asphalt
tack coat
tack
compound
layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP81900934A
Other languages
German (de)
English (en)
Other versions
EP0049260B1 (fr
Inventor
Ib Finn Robert Christensen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skanska AB
Original Assignee
Skanska Cementgjuteriet AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skanska Cementgjuteriet AB filed Critical Skanska Cementgjuteriet AB
Priority to AT81900934T priority Critical patent/ATE7315T1/de
Publication of EP0049260A1 publication Critical patent/EP0049260A1/fr
Application granted granted Critical
Publication of EP0049260B1 publication Critical patent/EP0049260B1/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
    • E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
    • 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
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
    • E01C7/185—Isolating, separating or connecting intermediate layers, e.g. adhesive layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions

Definitions

  • the present invention relates to a process for tack coating between layers of road surfacing material such as asphalt concrete where an existing layer is swept clean and sprayed with a thin film of an asphalt tack coat, whereafter asphalt is laved out on top of the tack coat.
  • a road surface is built up layer by layer with different materials for the various functions of the road. in order to assure that no slippage occurs between the layers, it is necessary to bind the layers with a thin tack coat. Normally the tack coat is only laid between the uppermost asphalt layers and not between the gravel layers which have by themselves sufficient friction between them.
  • the tack coat normally consists of an asphalt which has been dissolved in a solvent, e.g. naphta, or of an asphalt which has been emulsified in water.
  • a solvent e.g. naphta
  • asphalt solution in the former case one speaks of an asphalt solution, and in the latter case of an asphalt emulsion.
  • the asphalt solution is however of less interest now and will presumably disappear completely from the market because of the fact that it contains solvents which can be used for other purposes, i.e. as motor fuels, and the fact that they create a hazardous working environment.
  • the purpose of the present invention is to achieve a process for tack coating between layers of surfacing material, which does not have the above-mentioned disadvantages, which provides full adhesive effect immediately and which provides better adhesion than conventional tack coating.
  • an aqueous emulsion of an asphalt is used as the tack coat.
  • Asphalt compound which consists of gravel and asphalt, is made in asphalt plants. From there, the asphalt is driven in trucks to the surfacing site and is dumped into an asphalt laying machine or is laid out manually. The asphalt compund then has a temperature of about 150oC. After this compound has been applied and rolled, it is called asphalt concrete.
  • a tack coat is used, as was mentioned above, the composition of which is specified in construction standards.
  • the existing asphalt concrete layer is first brushed clean, whereafter the tack coat is spread out by a separate work team with a special separate unit. Then one waits about 1/4 to 2 hours until the water or solvent has evaporated, leaving a thick, sticky asphalt film. Only then is the asphalt compound for the next layer laid out and rolled.
  • This binding method only produces an adhesion on the "tops", i.e. a surface adhesion.
  • the fresh, hot asphalt compound is applied immediately after the sweeping and the spreading of the tack coat, so that the asphalt compound drops on the wet tack coat film.
  • the tack coat is spread in amounts on the order of 0.2 - 0.4 kg per square meter and has a water content of about 30-50 per cent. This should be compared with the asphalt compound, which has a temperature of about 150oC and which is laid in amounts of about 60-120 kg per square meter.
  • the hot asphalt is laid on the tack coat, the water in the tack coat or tack coat emulsion will boil violently and be vaporized, thus breaking the emulsion.
  • This conversion results in a sharp increase in volume in the tack coat and appears as foam.
  • the foaming and increased pressure forces the adhesive into the pores and capillaries both upwards and downwards, producing especially good adhesion at full effect immediately.
  • a deep acting adhesion is obtained which is clearly superior to the adhesion obtained by conventional tack coating. Any remaining water in the pores etc. does not affect the adhesive result, which is best demonstrated by the fact that water-coated rollers can be used to avoid having the newly laid asphalt compound stick to the rollers, without resulting in any negative effects.
  • Series of tests carried out on a pilot scale to determine whether the method would work have shown that significantly better results as regards the mechanical adhesion are obtained than with the conventional technique, and, as was indicated above, this depends on, among other things, the deep-acting adhesive effect, which is obtained by the increase in volume of the tack coat as the water is vaporized.
  • the advantaces of the Drocess according to the invention are thus that the need for an extra work team for the tack coating work is eliminated, as well as the need for a separate tack coating unit.
  • the process according to the invention is most suited to tack coats in the form of an aqueous emulsion, but will work for all asphalt binders which are used at present if the amounts of tack coat are adapted to the process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

Procede d'appret entre des couches d'un materiau de revetement d'une route telle que du beton d'asphalte, consistant a enlever une couche existante et a gicler une fine couche d'un liant d'asphalte ou appret d'adhesion, apres quoi un compose d'asphalte est pose sur l'appret d'adhesion. Le compose d'asphalte est pose immediatement apres que la couche de beton d'asphalte existante ait ete enlevee et que l'appret d'adhesion ait ete gicle, l'appret d'adhesion etant seche et casse par le compose d'asphalte applique a chaud.
EP81900934A 1980-04-17 1981-04-15 Procede d'appret pour le revetement d'une route Expired EP0049260B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81900934T ATE7315T1 (de) 1980-04-17 1981-04-15 Verfahren zum aufbringen einer haftschicht auf strassenoberflaechen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8002888A SE441370B (sv) 1980-04-17 1980-04-17 Forfarande for klistring vid vegbeleggning
SE8002888 1980-04-17

Publications (2)

Publication Number Publication Date
EP0049260A1 true EP0049260A1 (fr) 1982-04-14
EP0049260B1 EP0049260B1 (fr) 1984-05-02

Family

ID=20340757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81900934A Expired EP0049260B1 (fr) 1980-04-17 1981-04-15 Procede d'appret pour le revetement d'une route

Country Status (15)

Country Link
EP (1) EP0049260B1 (fr)
JP (1) JPS57500478A (fr)
BE (1) BE888455A (fr)
BR (1) BR8108318A (fr)
CA (1) CA1152795A (fr)
DE (1) DE3163359D1 (fr)
DK (1) DK153957B (fr)
ES (1) ES8206712A1 (fr)
IT (1) IT1144171B (fr)
MX (1) MX155174A (fr)
PT (1) PT72870B (fr)
SE (1) SE441370B (fr)
SU (1) SU1060123A3 (fr)
WO (1) WO1981003039A1 (fr)
ZA (1) ZA812484B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822887A1 (de) * 1978-05-26 1979-11-29 Hoechst Ag Lichtempfindliches aufzeichnungsmaterial und verfahren zur herstellung von reliefaufzeichnungen
FR2685929B1 (fr) * 1992-01-07 1998-11-20 Colas Sa Procede pour realiser la rupture d'une emulsion d'accrochage ou de repandage destinee a recevoir un enrobe ou des gravillons pour le revetement des routes.
FR2716470B1 (fr) * 1994-02-21 1996-05-03 Screg Routes & Travaux Procédé de réalisation d'un revêtement routier bitumineux ultra-mince.
FR2753463B1 (fr) * 1996-09-13 1998-11-13 Screg Couches de liant circulables et leur procede de preparation
AT407717B (de) * 1998-07-10 2001-05-25 Vialit Gmbh Oesterr Verfahren zum besprühen von flächen
EP1837442B2 (fr) 2006-03-24 2016-04-13 Joseph Vögele AG Train de finisseuses
US7802941B2 (en) 2008-04-28 2010-09-28 Road Science, L.L.C. Rut resistant coating and method of applying rut resistant coating
FR2938547B1 (fr) * 2008-11-14 2012-11-16 Total Raffinage Marketing Liant synthetique clair
EP2539511B1 (fr) 2010-02-24 2019-09-11 Blacklidge Emulsions, Inc. Couche d'accrochage appliquee a chaud
CN103114515B (zh) * 2013-01-31 2016-01-06 武汉理工大学 压电埋入式损伤自诊断沥青混凝土路面结构
EP3095914B1 (fr) * 2015-05-20 2021-01-27 Sika Technology AG Procédé de production d'une structure routière

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1539763A (en) * 1921-07-05 1925-05-26 Miles G Nixon Method of constructing asphalt pavements
NL6806900A (fr) * 1968-05-16 1969-11-18
DE2026136C3 (de) * 1970-05-29 1978-07-27 Hoechst Ag, 6000 Frankfurt Verwendung einer Polyesterträgerfolie mit Polyäthylenbeschichtungen für eine Straßenbefestigung und Polyesterträgerfolie mit Polyäthylenbeschichtungen für die Verwendung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8103039A1 *

Also Published As

Publication number Publication date
BR8108318A (pt) 1982-03-09
MX155174A (es) 1988-02-01
WO1981003039A1 (fr) 1981-10-29
ZA812484B (en) 1982-04-28
ES501427A0 (es) 1982-08-16
IT1144171B (it) 1986-10-29
JPS57500478A (fr) 1982-03-18
ES8206712A1 (es) 1982-08-16
SE8002888L (sv) 1981-10-18
IT8167529A0 (it) 1981-04-17
DK556081A (da) 1981-12-15
BE888455A (fr) 1981-08-17
SE441370B (sv) 1985-09-30
EP0049260B1 (fr) 1984-05-02
PT72870B (en) 1982-08-19
DK153957B (da) 1988-09-26
DE3163359D1 (en) 1984-06-07
SU1060123A3 (ru) 1983-12-07
CA1152795A (fr) 1983-08-30
PT72870A (en) 1981-05-01

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