DE1813626C3 - Overmoulding surfaces of bituminous, chipped traffic areas - Google Patents
Overmoulding surfaces of bituminous, chipped traffic areasInfo
- Publication number
- DE1813626C3 DE1813626C3 DE19681813626 DE1813626A DE1813626C3 DE 1813626 C3 DE1813626 C3 DE 1813626C3 DE 19681813626 DE19681813626 DE 19681813626 DE 1813626 A DE1813626 A DE 1813626A DE 1813626 C3 DE1813626 C3 DE 1813626C3
- Authority
- DE
- Germany
- Prior art keywords
- bituminous
- chippings
- bitumen
- spraying
- traffic
- 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.)
- Expired
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
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
- E01C7/353—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with exclusively bituminous binders; Aggregate, fillers or other additives for application on or in the surface of toppings with exclusively bituminous binders, e.g. for roughening or clearing
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Textile Engineering (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Description
zen. Auch Schlämme, die man üblicherweise nur in Schichtstärken von 3 bis maximal 5 mm auf Straßendecken aufträgt, werden normalerweise nicht mit Tonemulsionen, sondern mit stabilen oder halbstabilen ionischen Emulsionen hergestellt, die nach dem Auftrocknen keinesfalls quellfähig, wohl aber bei zu hoher Stabilität reemulgierbar sind.Zen. Even sludge, which is usually only found in layers of 3 to a maximum of 5 mm on road surfaces are normally not applied with clay emulsions, but with stable or semi-stable ones Ionic emulsions produced, which after drying in no way swellable, but at too high stability are re-emulsifiable.
Die übliche Ausführungsform von Oberflächenbehandlungen beruht auf dem Anspritzen der Asphaltstraße mit einer solchen Bindemittelmenge (in gelöster oder Emulsionsform), daß etwa 60 Prozent des einzustreuenden Gesteinssplitts nach dem Walzvorgang in das Bindemittel eingebettet sind. Diese Einbettung reicht bei starker Belastung durch Schubkräfte nicht aus, um das Splittkorn festzuhalten, insbesondere dann nicht, wenn das verwendete Bindemittel bei höheren Temperaturen zu weich wird oder wenn (auf Flugplätzen) durch die Diisenstiahlen der startenden Maschinen oder durch die Reibungswärme der aufsetzenden Fahrgestelle eine zusätzliche Erwärmung eintritt. Die Splittkörner werden teilweise herausgerissen und die Beschichtung in den Fahrspuren schnell zerstört. Wird durch Verwendung einer erhöhten Bindemittelmenge das Splittkorn besser eingebettet, so besteht die Gefahr, daß insbesondere bei einer nachträglichen Kornumbettung durch Verkehrsverdichtung eine glatte und damit rutschgefährliche Oberfläche entsteht. Dabei ist es gleichgültig, ob die zusätzliche Bindemittelmenge von vornherein oder durch nachträgliches Überspritzen (sogenannte Kopfspritzung) aufgebracht wird (s. hier-IU »Bitumen und Asphalt«, Taschenbuch 1957, S. 335).The usual form of surface treatment is based on spraying the asphalt road with such an amount of binder (in dissolved or emulsion form) that about 60 percent of the The stone chippings to be sprinkled are embedded in the binding agent after the rolling process. This embedding is not enough to hold the grit, especially when it is heavily loaded with shear forces then not if the binder used becomes too soft at higher temperatures or when (on airfields) by the diisenstiahlen of the starting machines or by the frictional heat additional heating occurs on the chassis that are on top of it. The grit becomes partially torn out and the coating in the lanes quickly destroyed. Will be through use an increased amount of binder, the grit is better embedded, there is a risk that in particular if the grain is subsequently re-bedded due to traffic congestion, a smooth and thus A surface that is liable to slip is created. It is irrelevant whether the additional amount of binder of is applied beforehand or by subsequent overmolding (so-called head spraying) (see here-IU "Bitumen und Asphalt", paperback 1957, p. 335).
Bei der erfindungsgemäßen Verwendung der stabileren Tonemulsionen tritt das beschriebene Glattwerden der Oberfläche nicht ein. Die zur Uberspritzung verwendete zusätzliche Bindemittelmenge umhüllt die überstehenden Splittkörner mit gleichmäßiger Schichtstärke, ohne zu einer einheitlichen und damit glatten Fläche zusammenzufließen. Die ursprüngliche Griffigkeit bleibt damit voll erhalten, und das Korn ist so eingebettet, daß unabhängig von der Temperatur erheblich höhere Schubkräfte aufgenommen werden können. Die ausschließliche Verwendung der Tonemulsion für die Kopfspritzung bietet den Vorteil, daß für die erste Anspritzung die üblichen schnell brechenden ionischen Emulsionen verwendet werden können, welche billiger und witterungsunabhängiger sind.When the more stable clay emulsions are used according to the invention, the described smoothing occurs the surface does not. The additional amount of binder used for overmolding envelops the protruding grit grains with a uniform layer thickness, without becoming a uniform and thus smooth Surface to flow together. The original grip is thus fully retained, and the grain is like that embedded that, regardless of the temperature, significantly higher shear forces are absorbed be able. The exclusive use of the clay emulsion for head spraying offers the advantage of that the usual fast-breaking ionic emulsions are used for the first injection which ones are cheaper and less dependent on the weather.
Infolge der geschilderten F.igemschaften der bituminösen Dispersionen auf der Basis quellfähiger Mineralien kann das eingangs geschilderte Klebrigwcrden beim Überspritzen der Oberflächenbehandlung nicht eintreten, vielmehr ergibt sich eine Verkittung des Splittmaterials, die selbst bei hohen sommerlichen Finstrahlungstemperaturen erhalten bleibt. Auch das so gefürchtete Schwitzen rler Straßenoberfläche im Sommer kann nunmehr vermieden werden, denn durch die Uberspritzung der fenigen Oberflächenbehandlung wird es möglich, die zum Anspritzen der alten Decke verwendete Bindemittelmenge knapper einzustellen, ohne daß die Gefahr einer ungenügenden Bindung des Gesteinssplitts besteht.As a result of the described characteristics of the bituminous Dispersions based on swellable minerals can become tacky as described above when overmolding the surface treatment does not occur, rather there is cementing of the Grit material that is retained even at high summer temperatures. That too The dreaded sweating on the road surface in summer can now be avoided because by overmolding the fenigen surface treatment it becomes possible to reduce the amount of binder used to spray the old ceiling set without the risk of insufficient binding of the rock chippings.
Die zur Uberspritzung der fertigen Oberflächenbehandlung verwendete Dispersion soll zweckmäßig in ihrer Menge und in ihrer Konzentration so eingestellt werden, daß einerseits die Griffigkeit der Oberfläche voll erhalten bleibt und Eindererseits das Material in alle noch nicht verfüllten Poren zwischen den Splittkörnern eindringen kann. Hieraus ergibt sich, daß die zu verwendende Menge von der für die Oberflächenbehandlung verwendeten Splittgröße abhängt. Bei Verwendung von Splittmaterial 2 bis 5 mm wird zweckmäßig die Uberspritzung mit maximal 1 kg/212 50prozentiger Bitumendispersion, bei Splittmaterial 5/8 mit maximal 1,5 kg und bei Splittmaterial 8/12 mit maximal 2 kg ausgeführt.The amount and concentration of the dispersion used to spray over the finished surface treatment should be adjusted in such a way that, on the one hand, the grip of the surface is fully retained and, on the other hand, the material can penetrate into all of the not yet filled pores between the chippings. It follows that the amount to be used depends on the size of the grit used for the surface treatment. When using chippings of 2 to 5 mm, it is advisable to over-spray with a maximum of 1 kg / 21 2 50 percent bitumen dispersion, with chippings 5/8 with a maximum of 1.5 kg and with chippings 8/12 with a maximum of 2 kg.
ίο Die zur Uberspritzung der abgesplitteten Oberfläche verwendeten bituminösen Dispersionen auf der Basis quellfähiger Mineralien bieten außerdem den Vorteil, daß eine wesentlich erweiterte Palette von bituminösen Produkten zur Emulgierung eingesetztίο The one for overmolding the chipped surface The bituminous dispersions used on the basis of swellable minerals also offer the The advantage of using a much wider range of bituminous products for emulsification
»5 werden kann.»5 can be.
Während mittels kapillaraktiver Substanzen nur relativ weiche Destillatbitumenqualitäten emulgiert werden können, ist es «lit Hilfe der wäßrigen Suspensionen quellfähiger Minerale möglich, auch Heißteere, Teer-Bitumen-Kombinationen, geblasene und halbgeblasene Bitumen sowie Kombinationen von bituminösen Produkten mit elastifizierenden Produkten, wie Naturkautschuk und Synthesekautschuk, zu dispergieren. Damit wird auch vom Bindemittel herWhile only relatively soft distillate bitumen qualities are emulsified by means of capillary-active substances it is possible with the help of the aqueous suspensions of swellable minerals, even hot tars, Tar-bitumen combinations, blown and half-blown bitumen and combinations of bituminous products with elasticizing products such as natural rubber and synthetic rubber disperse. This also applies to the binding agent
"5 eine erhöhte Standfestigkeit und eine gewisse Elastizität der verfahrensgemäßen Oberflächenbehandlung erreicht."5 an increased stability and a certain elasticity of the surface treatment according to the method achieved.
Es ist auch möglich, die quellfähige Mineralien enthaltenden, wäßrigen Dispersionen bituminöser Produkte nicht nur für die erfindungsgemäße Uberspritzung, sondern zusätzlich auch für die Anspritzung der alten Decke vor dem Abspikten zu verwenden. It is also possible to make the swellable minerals-containing aqueous dispersions bituminous Products not only for the overmolding according to the invention, but additionally also for the injection to use the old blanket before spitting.
Die folgenden Beispiele dienen der Erläuterung der Erfindung.The following examples serve to illustrate the invention.
Eine Oberfläche, die durch Anspritzen mit 1,3 kg/m2 kationischem Kaltasphalt und Abspulten mit 12 kg Moränesplitt der Körnung 5 bis 8 mm behandelt worden war, wird nach dem Walzen und Abfegen mit einer bituminösen Dispersion, bestehend ausA surface that had been treated by spraying with 1.3 kg / m 2 of cationic cold asphalt and unwinding with 12 kg of moraine chippings with a grain size of 5 to 8 mm is coated with a bituminous dispersion consisting of after rolling and sweeping
50 Gewichtsprozent geblasenem Bitumen vom
Erweichungspunkt 65° C (Ring- und Kugelmethode), 50 percent by weight of blown bitumen from
Softening point 65 ° C (ring and ball method),
5 Gewichtsprozent Ton und
45 Gewichtsprozent Wasser,5 percent by weight clay and
45 percent by weight water,
in einer Menge von 1.2 kg/m2 überspritzt. Nach dem Auftrocknen ergibt sich ein Belag, der auch bei sehr schnellem Verkehr eine nennenswerte Menge Splittkorn verliert und selbst bei Einstrahlungstemperaturen von 50° C nicht schwitzt.overmolded in an amount of 1.2 kg / m 2 . After drying, the result is a surface that loses a significant amount of chippings even with very fast traffic and does not sweat even at temperatures of 50 ° C.
Die Asphaltstartbahn eines Flugplatzes wird zwecks Aufrauhung und Erzielung einer gewissen Resistenz gegen Treibstoffe mit 1,5 kg/m2 einer bituminösen Dispersion angespritzt, die durch Dispersion von 50 Gewichtsleilen einer Mischung aus 90 Gewichtsprozent Heißteer und 10 Gewichtsprozent Nitrilkautschuk oder 10 Gewichtsprozent Chloropren in 50 Gewichtsteilen einer Sgewichtsprozentigen Tondispersion hergestellt wird. Hierauf wird mit Asphaltsplitt der Körnung 1 bis 3 mm abgcsplittet und nach dem Abwälzen und Abfegen mit 0,4 kg/m2 der gleichen Dispersion überspritzt.The asphalt runway of an airfield is injected with 1.5 kg / m 2 of a bituminous dispersion for the purpose of roughening and achieving a certain resistance to fuels, which is obtained by dispersing 50 parts by weight of a mixture of 90 percent by weight of hot tar and 10 percent by weight of nitrile rubber or 10 percent by weight of chloroprene in 50 parts by weight a 5 percent by weight clay dispersion is produced. This is followed by chipping with asphalt chippings with a grain size of 1 to 3 mm and, after rolling and sweeping, the same dispersion is sprayed over with 0.4 kg / m 2.
Claims (1)
drückt. Aus den genannten Gründen kann die be- Wie gefunden wurde, sind diese Dispersionen nunEven after careful rolling and sweeping, when heated, part of the melt no longer remains at all before handover, but only too weakly bound at temperatures above stone chippings and sintering together in the form of 30 150 ° C. If you emulsify z. B. one of the known chippings to considerable traffic bitumen of the type B 200 from the softening point hazards due to broken windshield 40 C in a ratio of 1: 1 in a 5 percent clay and slip hazard. If the injection is too weak, the slurry can be slurry and this slurry is allowed with binding agent. In addition, especially in the 5 mm thick layer in a tray, the grit material is pulled out again, so this tray can be placed vertically up to and then results in an uneven and unattractive appearance ] 50 C without affecting the bituminous appearance of the road surface. The same thing happens. Layer flows together. If, on the other hand, the bitumen of type B 200 used with the corresponding bituminous binder is too soft and a lot of clay powder is mixed in during the summer months, the result increases with the traffic upwards only from 40 to about 45 ° C ".
presses. For the reasons mentioned, the As was found, these dispersions are now
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681813626 DE1813626C3 (en) | 1968-12-10 | 1968-12-10 | Overmoulding surfaces of bituminous, chipped traffic areas |
CH912969A CH511981A (en) | 1968-12-10 | 1969-06-16 | Surface treatment of bituminous traffic areas |
RO6045169A RO55468A (en) | 1968-12-10 | 1969-07-07 | |
BE736176D BE736176A (en) | 1968-12-10 | 1969-07-16 | |
YU188869A YU31686B (en) | 1968-12-10 | 1969-07-21 | Sredstvo za prskanje saobracajnih povrsina |
NL6911267A NL162122C (en) | 1968-12-10 | 1969-07-23 | METHOD FOR TREATING A ROAD SURFACE |
LU59173D LU59173A1 (en) | 1968-12-10 | 1969-07-25 | |
FR6942430A FR2025771A1 (en) | 1968-12-10 | 1969-12-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681813626 DE1813626C3 (en) | 1968-12-10 | 1968-12-10 | Overmoulding surfaces of bituminous, chipped traffic areas |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1813626A1 DE1813626A1 (en) | 1971-06-09 |
DE1813626B2 DE1813626B2 (en) | 1973-08-16 |
DE1813626C3 true DE1813626C3 (en) | 1974-04-04 |
Family
ID=5715721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681813626 Expired DE1813626C3 (en) | 1968-12-10 | 1968-12-10 | Overmoulding surfaces of bituminous, chipped traffic areas |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE736176A (en) |
CH (1) | CH511981A (en) |
DE (1) | DE1813626C3 (en) |
FR (1) | FR2025771A1 (en) |
LU (1) | LU59173A1 (en) |
NL (1) | NL162122C (en) |
RO (1) | RO55468A (en) |
YU (1) | YU31686B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005032148A1 (en) * | 2005-07-07 | 2007-01-11 | Ute Gaul | Compact protective layer for a road surface comprises using a grain-graded mineral material mixture with a bitumen-containing binder layer coated with chippings and a bitumen-containing binder layer coated with sand as uppermost layer |
WO2015189322A1 (en) * | 2014-06-12 | 2015-12-17 | Akzo Nobel Chemicals International B.V. | Method for producing bituminous coatings with reduced tackiness |
-
1968
- 1968-12-10 DE DE19681813626 patent/DE1813626C3/en not_active Expired
-
1969
- 1969-06-16 CH CH912969A patent/CH511981A/en not_active IP Right Cessation
- 1969-07-07 RO RO6045169A patent/RO55468A/ro unknown
- 1969-07-16 BE BE736176D patent/BE736176A/xx not_active IP Right Cessation
- 1969-07-21 YU YU188869A patent/YU31686B/en unknown
- 1969-07-23 NL NL6911267A patent/NL162122C/en not_active IP Right Cessation
- 1969-07-25 LU LU59173D patent/LU59173A1/xx unknown
- 1969-12-09 FR FR6942430A patent/FR2025771A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
YU188869A (en) | 1973-04-30 |
YU31686B (en) | 1973-10-31 |
RO55468A (en) | 1973-08-20 |
CH511981A (en) | 1971-08-31 |
LU59173A1 (en) | 1969-12-05 |
FR2025771A1 (en) | 1970-09-11 |
DE1813626A1 (en) | 1971-06-09 |
BE736176A (en) | 1969-12-31 |
NL162122B (en) | 1979-11-15 |
DE1813626B2 (en) | 1973-08-16 |
NL6911267A (en) | 1970-06-12 |
NL162122C (en) | 1980-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EGA | New person/name/address of the applicant |