CA1159298A - Method and device for laying roadmaking material in a roadway - Google Patents
Method and device for laying roadmaking material in a roadwayInfo
- Publication number
- CA1159298A CA1159298A CA000382655A CA382655A CA1159298A CA 1159298 A CA1159298 A CA 1159298A CA 000382655 A CA000382655 A CA 000382655A CA 382655 A CA382655 A CA 382655A CA 1159298 A CA1159298 A CA 1159298A
- Authority
- CA
- Canada
- Prior art keywords
- tracks
- stripping
- laying
- intermediate strip
- working direction
- 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
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- Road Repair (AREA)
- Road Paving Structures (AREA)
- Soil Working Implements (AREA)
- Emergency Lowering Means (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
ABSTRACT
For filling tracks worn in roadways, roadmaking material, preferably asphalt, is simultaneously laid in two adjacent tracks and in the intermediate strip of roadway, for which purpose the old material of the marginal regions of the tracks is replasticized as well as that of the intermediate strip; should the old surface of the intermediate strip be higher than the outer marginal regions of the two tracks, the replasticized material of the intermediate strip is removed to approximately the same level as the outer marginal regions of the two tracks, the removed material is laid in the tracks and, finally, the exposed surface of the intermediate strip is roughened before the new material is laid. Two stripping-laying apparatuses which are arranged at a distance from one another laterally of the working direction serve to fill the tracks and are connected together by a stripping element whose lower stripping edge is level with the front ends of the lower stripping edges of the stripping-laying apparatuses.
Should the surface of the strip of roadway between two adjacent tracks be higher than the outer marginal regions of these two tracks, levelling and roughening devices for the strip of roadway lying between the two tracks are arranged in the working direction in front of the laying apparatuses connected by the stripping element.
For filling tracks worn in roadways, roadmaking material, preferably asphalt, is simultaneously laid in two adjacent tracks and in the intermediate strip of roadway, for which purpose the old material of the marginal regions of the tracks is replasticized as well as that of the intermediate strip; should the old surface of the intermediate strip be higher than the outer marginal regions of the two tracks, the replasticized material of the intermediate strip is removed to approximately the same level as the outer marginal regions of the two tracks, the removed material is laid in the tracks and, finally, the exposed surface of the intermediate strip is roughened before the new material is laid. Two stripping-laying apparatuses which are arranged at a distance from one another laterally of the working direction serve to fill the tracks and are connected together by a stripping element whose lower stripping edge is level with the front ends of the lower stripping edges of the stripping-laying apparatuses.
Should the surface of the strip of roadway between two adjacent tracks be higher than the outer marginal regions of these two tracks, levelling and roughening devices for the strip of roadway lying between the two tracks are arranged in the working direction in front of the laying apparatuses connected by the stripping element.
Description
FIELD OF THE INVENTION
~he invention relates to a method for filling tracks worn in roadways with roadmaking material, preferably asphalt, in which the old material of the marginal regions of the tracks is replasticized by heating.
A method of this kind has been described.
Only the actual tracks are refilled in this known method, whereas the roadway strip lying between two neighbouring tracks is not renewed. (Gerlllan Specification DE-A-25 24 762)o ~he invention also relates to a device for carrying out the method. In this co~nection an apparatus is known which comprises two stripping-laying apparatus which are arranged at a distance from on~ another laterally of the working direction and serve to fill two adjacent tracks. ~he strip of roadway lying between the stripping-laying apparatus for filling two adjacent tracks is not therefore covered by this apparatus as well, as a result of which this inter-mediate strip remains at the original, low road level as compared with the inner edges of the asphalt strip filling the tracks.
According to this prior art~ pools of wa-ter, which give rise to accidents, are formed between the two inner edges of the track-fillin~ material, laid in .. :, ' ' ~
strips, as a result of rain or melted snow. Road users are also presented with a disturbing optical effec-t, caused by the two separate asphalt tracks.
~he object of the invention is to provide a method and a device with which the formation of a difference in level between the filled tracks and the intermediate strip of roadway can be avoided by simple means.
SUMMARY OF I~lE INVENTION
.
The pres~nt inven~ion provides a method in which road-making material is simultaneously laid in two adjacent tracks and in the intermediate strip, for which purpose the old material of the, margi~a-l- regions of the tracks is replastici~ed -aæ well as that of the intermediate strip and, should the old surface of the intermediate strip be higher than the outer marginal regions of the two tracks, the re-plasticized material of the întermediate strip is removed to at least the same level as the outer margi~al regions of the two tracks, the removed material is laid in the tracks~and, finally, the uncovered surface of the inter~
mediate strip is roughened before the new material is laid.
, The method according to the invention enables the abo~e-men~ioned disadvantages of the prior art to be avoided and, a solid and plane top layer of uniform appearance to be pro-vided by using a construction method which is extremely economical as regards material.
The material-saving and therefore inexpensive laying method results from two reasons. ~irstl~, the new material is applied as thinly as possible to the intermediate strips between two adjacent tracks, without an~ impairmant of the quality of the surface. Secondly, should the old surface of the inter-mediate strip be higher than the outer marginal regions of the two tracks, the material which has been removed is re-used, thus reducing the requixed quantity of new material.
~he device according to the invention for carrying out the claime,d method is characterised in that a stripping element is arranged between the adjacent stripping-laying apparatuses and is connected to the adjacent stripping-lay.ing apparat~lses such that the lower stripping edge of the stripping element and the front ends of the lower stripping edges of the stripping-laying apparatuses are disposed at the same levelO ~he stripping element'is connected to the adjacent stripping-laying apparatuses such that *he road surface which is not covered when the tracks are filled in strips is provided with a plane coating~
Stripping-laying apparatus of the above-mentioned type is known from German Specification DE-B- 24 58 266 .
In order to prevent the asphalt, which is always pushed in front of the apparatus according to the invention as surplus, ~ ~ 5~4 ~ ~
from acc~nulating -to such an exten-t as to give rise to a considerable pressure on the system consisting of the two stripping-laying apparatuses and the stripping element accord-ing to the invention so as to prevent the material being laid satisfactorily, the stripping element is of angular construction and preferably mounted with the apex of this angle pointing to the front.
A further advantageous embodiment of the subject matter o~
the invention is provided in that the stripping element is connected to the inner stripping plates of the adjacent stripping-laying apparatuses such that the lower stripping edges of the inner stripping plates o~ the adjacent stripping~
laying apparatuses are inclined with respect to the lower stripping edge of the stripping element which is guided par-allel to the surface of the road. It is thus possible to increase, as required,the thicl~ness of the asphalt which is laid in the centre, and thus th~ deepest part, o~ the track, without the thickness being altered in an undesirable manner in the region of the stripping element.
In accordance with a further advantageous embodiment of the invention, the stripping element can consist of two~stripp-ing surfaces which are hinged to each other and to the inner edges of the adjacent i~ner stripping plates of the stripp-ing laying apparatuses which only fill the tracks and the apex formed by the two stripping plates can be directed both in and against the laying direction. A continuously variable adaptation to the different widths of the interspaces result~
ing from the varying dimensions of the tracks is thus poss-ible.
Should the old surface of the strip of roadway lying between two adjacent, i e. associated, tracks, be higher than-the outer marginal regions of these two tracks, levelling and rough~ning devices are arranged in the working direction in front of the laying apparatuses connected by the stripping element.
~y means of these devices the asphalt, which has been re-plasticized in a previous working step, of a cambered inter-mediate strip between two adjacent tracks is removed as far as a predetermired level, this removed material is laid in the two tracks and, finally, the exposed surface of the inter mediate strip is roughened. The intermediate strip is there-fore ready for the new material to be laid and the roughen-ing operation simultaneously provides the requirement for good bonding between the applied asphalt filler and the old road surface~
.
Bulges in the asphalt, which frequently occur between the tracks in asphalt roads, for example, were removed in previous methods by cutters, rotating worms or steel rakes acting at right angles to the axis of the road. However~
~`lri~f~
these methods cannot easily be combined with an asphalt construction, in which either the i.ndividual tracks alone are to be filled in a technically perfect manner, and thus without any subsequent secondary compression phenomena, .or the levelled strip between two tracks or between two pairs of tracks is to become an acceptable sec-tion of the new road sur~ace. In the case of this asphalt construction the entire strip between the outermost edges of a pair of tracks should be plane and covered with fresh asph~
al.t i~ the ~am~sr provided so that the asphalt can be laid in-the shape of a roof pro~ile in order to exclude subse-quent secondary compressions, which are the beginning of new track ~ormations.In this connection reference is again made to the above-mentioned Specification DE-B- 24 48 2660 ' '~he claimed device also enables the entire region of a road-way surface between the outermost edges of a pair of tracks to be covered with asphalt such that, following the comple-tion of the surface reconstruction work, including the secondary compression caused by the traffic~ a plane surface .covering ~f.Nni~orm appearance results,whe~ the asphalt be-tween two tracks or two pairs of tracks has cambered to above the required level and there~ore it is not easily possible to coat this roadway strip as well.
particularly simple levelling device lies in the fact that this is formed by an angular levelling element whose r ~
.
n apex points in the working direction.
~he roughening device is appropriately formed by a plurality of roughening spikes arranged in the manner of a rake trans-verse to the i~termediate strip.
Both devices can be combined and constructed in a simple manner b~ arranging the roughening spikes directly at the corners of the levelling element, the working surfaces of the corners of the levelling element lying in front of the roughening spikes in the working direction.
Embodiments of the device according to -the invention are explained in the following with reference to the drawings BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1A is a schematic, perspective view of a stripping element corresponding to the construction of the device according to the invention and arranged obliquely with respect to the working direction between two adjacent stripping-laying apparatuses, ~igure 1~ is a schematic, perspective view of an alternative construction of the device according to the invention~
~igure 1C is a sectional view of the roadway surface and a side view of one of the stripping plates of the stripping element and the stripping-laying apparatuses, t ~
Figure 2A is a section through the applied asphalt material up to the surface of the old roadway surface with the tracks~
~igure 2B is a sectional view of the filling material laid by the two stripping-laying apparatuse s;
~igure 2C is a section through the filling material which has been applied to the roadway surface and leve].led to form a plane surface by the stripping element according to the invention;
Figure 2D is a section through the fillin~ materal..of the finished surface coating which has been applied and compressed b~ the stri.pping-laying apparatuses and the stripping element according to the invention;
Figure 3A is a section through a roadway surface, in which the roadway strip lying between two tracks is higher than the outermost marginal`regions of the two tracks;and ' ~igure 3~ is a schematic representation of the levelling and roughening devices for the intermediate strip .
DESCRIPTION OF PREEERRED EMBODIMENTS
~igures 1A, 1C, 2A and 2C show the method of operation o~
the device according to the invention. According to these drawings a stripping element 1 is attached totwo stripping-la~ing apparatuses 3, which fill the tracks and are pu.Lled in _ 9 the working direction A by a tractor which is not shown, the said stripping element distributing the road surface material as it is applied to the roadway surface b by a tractor or another means such that it evenly fills the interspace ~, which is not covered by the two adjacent stripping-laying apparatuses 3, at the le~el c of the asphalt layers borderi~g on both sides. ~he fill thickness f, which usually varies and is dependent upon the depths of the tracks and the easiness with which the filling material a to be applied compresses, is adjusted by adjusting devices 9, 10 and 11. A new~ uniform and plane roadway surface i is produced between the two edges ~ following the compression of the fllling material a by rollers and tra`ffic (figure 2D).
Figure 1B shows a stripping element 2, which consists of two stripping plates 2 which are connected together and to the stripping-laying apparatuses 3 by hinged de~ice~ 7 and o respectively. A strippin~ element of this kind, arranged in hinged manner, is able to adapt to each change in distance between the two stripping-laying apparatuses resulting from the varying dimensions of the tracks.
~igure 2C clearly shows that the stripping edge 5 of the stripping element 1 lies in a horizontal plane and gives rise to a roadway surface according to figure 2A~ ~he stripping ¢~
-- '10 --edge 6 of the strlpping plate 2 of the stripping-layi~g apparatus extends upwards at an angle from the rear edge of the stripping edge 5 of the stripping plate 2 of the stripping element 1 and gives rise to a roadway surface profile over the tracks corresponding to figure 2A.
~igure 3A is a schematic section through a roadway surface, in which the surface O of the roadway strip Z lying between two adjacent tracks S is higher in the reconstructed state than the outer marginal regions R of the two tracks S.
In order to cover the intermediate strip Z so as to make it flush with the tracks, it is necessary, in these cir-cumstances, to replasticize the olcl, excess material of the intermediate strip Z and subsequently to bring it down to the same level ~1 as the outer mar~inal regions R of the two tracks S. In this respect it is of great advan-tage to imm-ediately fill the tracks S with the material which has been removed, as the necessary ~uantity of new material is there-by reduced and the cost of the reconstruction operation can be considerably decreased. ~ollowing the removal of the excess mater~al, the exposed surface of the intermediate strip æ is roughened, so as to make provision for the bonding of the new material which has been applied wîth the old surface. ~he new material is simultaneously laid both in the tracks S and in the intermediate strip Z, thus producing a new, uniform and plane roadway surface correspond~.
ing to level ~2.
Figure 3B is a schematic representation of the devices adapted for the above-mentioned operations. ~hey include an angular levelling element, designated as a whole by 10, with lower levelling edges 11, which are adjusted to the level N1 which is to be reached in the region o~ the intermediate strip Z.
For this purpose the levelling element 10 i~ accordingly adjustably arranged, for example on a pushing machine. ~he angle oC between the two arms of the angular levelling element is also variable, so that it can be adapted to the respective width of the intermediate strip ZO Th~ apex .o~.the. angular.
~ leve~ling element 10 points in the working direction A
durirLg the movement of the levelling element in the work-~ ing direction A over the intermediate strip Z, as a result of which the previously re~plasticized, excess material of the intermediate strip Z, which has been removed by this movement,is proportionately pushed into the two adjacent tracks S.
A roughening device is also provided whi~h comprises a plur-alit~ of roughening spikes 40.arranged in the manner of a rake transverse - to the intermediate strip Z. In order to simplify this construction, angle irons 40, extending parallel to the levelling edge 11~ are mounted on the rear - 12 - .
faces~ with respect to the working direction A, of the two arms of the levelling element 10 and are provided at regular intervals with mountings 30, in which the roughening spikes 40 are mounted in essentially vertical alignment so as to be adjustable in height.
The lavelling element 10 with the roughening spikes 40 is arranged in the working direction in front of the stripping-laying apparatuses 3 connected by the s-trippi~g element 1.
~he two subassemblies can be disposed on separate transport-ing or pushing machines or on a common transporting machine.
. . :
~he invention relates to a method for filling tracks worn in roadways with roadmaking material, preferably asphalt, in which the old material of the marginal regions of the tracks is replasticized by heating.
A method of this kind has been described.
Only the actual tracks are refilled in this known method, whereas the roadway strip lying between two neighbouring tracks is not renewed. (Gerlllan Specification DE-A-25 24 762)o ~he invention also relates to a device for carrying out the method. In this co~nection an apparatus is known which comprises two stripping-laying apparatus which are arranged at a distance from on~ another laterally of the working direction and serve to fill two adjacent tracks. ~he strip of roadway lying between the stripping-laying apparatus for filling two adjacent tracks is not therefore covered by this apparatus as well, as a result of which this inter-mediate strip remains at the original, low road level as compared with the inner edges of the asphalt strip filling the tracks.
According to this prior art~ pools of wa-ter, which give rise to accidents, are formed between the two inner edges of the track-fillin~ material, laid in .. :, ' ' ~
strips, as a result of rain or melted snow. Road users are also presented with a disturbing optical effec-t, caused by the two separate asphalt tracks.
~he object of the invention is to provide a method and a device with which the formation of a difference in level between the filled tracks and the intermediate strip of roadway can be avoided by simple means.
SUMMARY OF I~lE INVENTION
.
The pres~nt inven~ion provides a method in which road-making material is simultaneously laid in two adjacent tracks and in the intermediate strip, for which purpose the old material of the, margi~a-l- regions of the tracks is replastici~ed -aæ well as that of the intermediate strip and, should the old surface of the intermediate strip be higher than the outer marginal regions of the two tracks, the re-plasticized material of the întermediate strip is removed to at least the same level as the outer margi~al regions of the two tracks, the removed material is laid in the tracks~and, finally, the uncovered surface of the inter~
mediate strip is roughened before the new material is laid.
, The method according to the invention enables the abo~e-men~ioned disadvantages of the prior art to be avoided and, a solid and plane top layer of uniform appearance to be pro-vided by using a construction method which is extremely economical as regards material.
The material-saving and therefore inexpensive laying method results from two reasons. ~irstl~, the new material is applied as thinly as possible to the intermediate strips between two adjacent tracks, without an~ impairmant of the quality of the surface. Secondly, should the old surface of the inter-mediate strip be higher than the outer marginal regions of the two tracks, the material which has been removed is re-used, thus reducing the requixed quantity of new material.
~he device according to the invention for carrying out the claime,d method is characterised in that a stripping element is arranged between the adjacent stripping-laying apparatuses and is connected to the adjacent stripping-lay.ing apparat~lses such that the lower stripping edge of the stripping element and the front ends of the lower stripping edges of the stripping-laying apparatuses are disposed at the same levelO ~he stripping element'is connected to the adjacent stripping-laying apparatuses such that *he road surface which is not covered when the tracks are filled in strips is provided with a plane coating~
Stripping-laying apparatus of the above-mentioned type is known from German Specification DE-B- 24 58 266 .
In order to prevent the asphalt, which is always pushed in front of the apparatus according to the invention as surplus, ~ ~ 5~4 ~ ~
from acc~nulating -to such an exten-t as to give rise to a considerable pressure on the system consisting of the two stripping-laying apparatuses and the stripping element accord-ing to the invention so as to prevent the material being laid satisfactorily, the stripping element is of angular construction and preferably mounted with the apex of this angle pointing to the front.
A further advantageous embodiment of the subject matter o~
the invention is provided in that the stripping element is connected to the inner stripping plates of the adjacent stripping-laying apparatuses such that the lower stripping edges of the inner stripping plates o~ the adjacent stripping~
laying apparatuses are inclined with respect to the lower stripping edge of the stripping element which is guided par-allel to the surface of the road. It is thus possible to increase, as required,the thicl~ness of the asphalt which is laid in the centre, and thus th~ deepest part, o~ the track, without the thickness being altered in an undesirable manner in the region of the stripping element.
In accordance with a further advantageous embodiment of the invention, the stripping element can consist of two~stripp-ing surfaces which are hinged to each other and to the inner edges of the adjacent i~ner stripping plates of the stripp-ing laying apparatuses which only fill the tracks and the apex formed by the two stripping plates can be directed both in and against the laying direction. A continuously variable adaptation to the different widths of the interspaces result~
ing from the varying dimensions of the tracks is thus poss-ible.
Should the old surface of the strip of roadway lying between two adjacent, i e. associated, tracks, be higher than-the outer marginal regions of these two tracks, levelling and rough~ning devices are arranged in the working direction in front of the laying apparatuses connected by the stripping element.
~y means of these devices the asphalt, which has been re-plasticized in a previous working step, of a cambered inter-mediate strip between two adjacent tracks is removed as far as a predetermired level, this removed material is laid in the two tracks and, finally, the exposed surface of the inter mediate strip is roughened. The intermediate strip is there-fore ready for the new material to be laid and the roughen-ing operation simultaneously provides the requirement for good bonding between the applied asphalt filler and the old road surface~
.
Bulges in the asphalt, which frequently occur between the tracks in asphalt roads, for example, were removed in previous methods by cutters, rotating worms or steel rakes acting at right angles to the axis of the road. However~
~`lri~f~
these methods cannot easily be combined with an asphalt construction, in which either the i.ndividual tracks alone are to be filled in a technically perfect manner, and thus without any subsequent secondary compression phenomena, .or the levelled strip between two tracks or between two pairs of tracks is to become an acceptable sec-tion of the new road sur~ace. In the case of this asphalt construction the entire strip between the outermost edges of a pair of tracks should be plane and covered with fresh asph~
al.t i~ the ~am~sr provided so that the asphalt can be laid in-the shape of a roof pro~ile in order to exclude subse-quent secondary compressions, which are the beginning of new track ~ormations.In this connection reference is again made to the above-mentioned Specification DE-B- 24 48 2660 ' '~he claimed device also enables the entire region of a road-way surface between the outermost edges of a pair of tracks to be covered with asphalt such that, following the comple-tion of the surface reconstruction work, including the secondary compression caused by the traffic~ a plane surface .covering ~f.Nni~orm appearance results,whe~ the asphalt be-tween two tracks or two pairs of tracks has cambered to above the required level and there~ore it is not easily possible to coat this roadway strip as well.
particularly simple levelling device lies in the fact that this is formed by an angular levelling element whose r ~
.
n apex points in the working direction.
~he roughening device is appropriately formed by a plurality of roughening spikes arranged in the manner of a rake trans-verse to the i~termediate strip.
Both devices can be combined and constructed in a simple manner b~ arranging the roughening spikes directly at the corners of the levelling element, the working surfaces of the corners of the levelling element lying in front of the roughening spikes in the working direction.
Embodiments of the device according to -the invention are explained in the following with reference to the drawings BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1A is a schematic, perspective view of a stripping element corresponding to the construction of the device according to the invention and arranged obliquely with respect to the working direction between two adjacent stripping-laying apparatuses, ~igure 1~ is a schematic, perspective view of an alternative construction of the device according to the invention~
~igure 1C is a sectional view of the roadway surface and a side view of one of the stripping plates of the stripping element and the stripping-laying apparatuses, t ~
Figure 2A is a section through the applied asphalt material up to the surface of the old roadway surface with the tracks~
~igure 2B is a sectional view of the filling material laid by the two stripping-laying apparatuse s;
~igure 2C is a section through the filling material which has been applied to the roadway surface and leve].led to form a plane surface by the stripping element according to the invention;
Figure 2D is a section through the fillin~ materal..of the finished surface coating which has been applied and compressed b~ the stri.pping-laying apparatuses and the stripping element according to the invention;
Figure 3A is a section through a roadway surface, in which the roadway strip lying between two tracks is higher than the outermost marginal`regions of the two tracks;and ' ~igure 3~ is a schematic representation of the levelling and roughening devices for the intermediate strip .
DESCRIPTION OF PREEERRED EMBODIMENTS
~igures 1A, 1C, 2A and 2C show the method of operation o~
the device according to the invention. According to these drawings a stripping element 1 is attached totwo stripping-la~ing apparatuses 3, which fill the tracks and are pu.Lled in _ 9 the working direction A by a tractor which is not shown, the said stripping element distributing the road surface material as it is applied to the roadway surface b by a tractor or another means such that it evenly fills the interspace ~, which is not covered by the two adjacent stripping-laying apparatuses 3, at the le~el c of the asphalt layers borderi~g on both sides. ~he fill thickness f, which usually varies and is dependent upon the depths of the tracks and the easiness with which the filling material a to be applied compresses, is adjusted by adjusting devices 9, 10 and 11. A new~ uniform and plane roadway surface i is produced between the two edges ~ following the compression of the fllling material a by rollers and tra`ffic (figure 2D).
Figure 1B shows a stripping element 2, which consists of two stripping plates 2 which are connected together and to the stripping-laying apparatuses 3 by hinged de~ice~ 7 and o respectively. A strippin~ element of this kind, arranged in hinged manner, is able to adapt to each change in distance between the two stripping-laying apparatuses resulting from the varying dimensions of the tracks.
~igure 2C clearly shows that the stripping edge 5 of the stripping element 1 lies in a horizontal plane and gives rise to a roadway surface according to figure 2A~ ~he stripping ¢~
-- '10 --edge 6 of the strlpping plate 2 of the stripping-layi~g apparatus extends upwards at an angle from the rear edge of the stripping edge 5 of the stripping plate 2 of the stripping element 1 and gives rise to a roadway surface profile over the tracks corresponding to figure 2A.
~igure 3A is a schematic section through a roadway surface, in which the surface O of the roadway strip Z lying between two adjacent tracks S is higher in the reconstructed state than the outer marginal regions R of the two tracks S.
In order to cover the intermediate strip Z so as to make it flush with the tracks, it is necessary, in these cir-cumstances, to replasticize the olcl, excess material of the intermediate strip Z and subsequently to bring it down to the same level ~1 as the outer mar~inal regions R of the two tracks S. In this respect it is of great advan-tage to imm-ediately fill the tracks S with the material which has been removed, as the necessary ~uantity of new material is there-by reduced and the cost of the reconstruction operation can be considerably decreased. ~ollowing the removal of the excess mater~al, the exposed surface of the intermediate strip æ is roughened, so as to make provision for the bonding of the new material which has been applied wîth the old surface. ~he new material is simultaneously laid both in the tracks S and in the intermediate strip Z, thus producing a new, uniform and plane roadway surface correspond~.
ing to level ~2.
Figure 3B is a schematic representation of the devices adapted for the above-mentioned operations. ~hey include an angular levelling element, designated as a whole by 10, with lower levelling edges 11, which are adjusted to the level N1 which is to be reached in the region o~ the intermediate strip Z.
For this purpose the levelling element 10 i~ accordingly adjustably arranged, for example on a pushing machine. ~he angle oC between the two arms of the angular levelling element is also variable, so that it can be adapted to the respective width of the intermediate strip ZO Th~ apex .o~.the. angular.
~ leve~ling element 10 points in the working direction A
durirLg the movement of the levelling element in the work-~ ing direction A over the intermediate strip Z, as a result of which the previously re~plasticized, excess material of the intermediate strip Z, which has been removed by this movement,is proportionately pushed into the two adjacent tracks S.
A roughening device is also provided whi~h comprises a plur-alit~ of roughening spikes 40.arranged in the manner of a rake transverse - to the intermediate strip Z. In order to simplify this construction, angle irons 40, extending parallel to the levelling edge 11~ are mounted on the rear - 12 - .
faces~ with respect to the working direction A, of the two arms of the levelling element 10 and are provided at regular intervals with mountings 30, in which the roughening spikes 40 are mounted in essentially vertical alignment so as to be adjustable in height.
The lavelling element 10 with the roughening spikes 40 is arranged in the working direction in front of the stripping-laying apparatuses 3 connected by the s-trippi~g element 1.
~he two subassemblies can be disposed on separate transport-ing or pushing machines or on a common transporting machine.
. . :
Claims (11)
1. A method of filling tracks worn in a roadway, comprising the steps of replasticizing old material of marginal regions of the tracks by heating, simultaneously laying roadmaking material, preferably asphalt, in two adjacent tracks and in the intermediate strip of roadway, for which purpose the old material of the marginal regions of the tracks is replasticized as well as that of the intermediate strip, and, should the old surface of the intermediate strip be higher than the outer marginal regions of the said two tracks, removing the replasticized material of the intermediate strip to approximately the same level as the said outer marginal regions, laying the removed material in the tracks, and roughening the exposed surface of the intermediate strip before the new material is laid.
2. A device for filling tracks worn in a roadway, comprising two stripping-laying apparatuses which are arranged at a distance from one another laterally of a working direction and serve to fill the tracks, and a stripping element is arranged between the stripping-laying apparatuses and connected to them, the lower stripping edge of the stripping element and the front ends of the lower stripping edges of the stripping-laying apparatuses being disposed at the same level.
3. The device of claim 2, in which the stripping element is arranged at an angle to the working direction.
4. The device of claim 2, in which the lower stripping edge of the stripping element and the lower stripping edge of each stripping-laying apparatus form an angle in a vertical reference plane.
5. The device of claim 2, in which the stripping element consists of two parts which are each connected together at one end by a hinge and connected to the respective s-tripping-laying apparatus at the other end by a hinge, the said parts being disposed at an angle with respect to each other.
The device of claim 4 or 59 in which the apex of the angle points in the working direction.
7. The device of claim 4 or 5, in which the apex of the angle points in a direction opposite the working direction.
8. The device of claim 2, further comprising levelling and roughening means for the intermediate strip arranged in the working direction in front of the laying apparatuses connected by the stripping element.
9. The device of claim 8, in which the levelling means comprises an angular levelling element whose apex points in the working direction.
10. The device of claim 8, in which the roughening means is disposed in the working direction behind the levelling means and comprises a plurality of roughening spikes which are arranged in the manner of a rake transverse to the intermediate strip.
11. The device of claim 10, in which the roughening spikes are arranged directly on the arms of an angular levelling element whose apex points in the working direction.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3028741.3. | 1980-07-29 | ||
| DE19803028741 DE3028741A1 (en) | 1980-07-29 | 1980-07-29 | DEVICE FOR APPLYING ROAD CONSTRUCTION MATERIAL |
| EP81103648.2 | 1981-05-12 | ||
| EP81103648A EP0044912B1 (en) | 1980-07-29 | 1981-05-12 | Method and apparatus for placing paving material on a road |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1159298A true CA1159298A (en) | 1983-12-27 |
Family
ID=25786934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000382655A Expired CA1159298A (en) | 1980-07-29 | 1981-07-28 | Method and device for laying roadmaking material in a roadway |
Country Status (12)
| Country | Link |
|---|---|
| AT (1) | ATE9498T1 (en) |
| AU (1) | AU536876B2 (en) |
| CA (1) | CA1159298A (en) |
| CS (1) | CS228148B2 (en) |
| DD (1) | DD201616A5 (en) |
| DK (1) | DK336581A (en) |
| ES (1) | ES8205287A1 (en) |
| FI (1) | FI812291L (en) |
| HU (1) | HU185442B (en) |
| NO (1) | NO812576L (en) |
| PL (1) | PL232400A1 (en) |
| YU (1) | YU186881A (en) |
-
1981
- 1981-05-12 AT AT81103648T patent/ATE9498T1/en not_active IP Right Cessation
- 1981-07-22 FI FI812291A patent/FI812291L/en not_active Application Discontinuation
- 1981-07-24 HU HU216981A patent/HU185442B/en unknown
- 1981-07-28 ES ES504936A patent/ES8205287A1/en not_active Expired
- 1981-07-28 AU AU73515/81A patent/AU536876B2/en not_active Ceased
- 1981-07-28 NO NO812576A patent/NO812576L/en unknown
- 1981-07-28 YU YU186881A patent/YU186881A/en unknown
- 1981-07-28 DK DK336581A patent/DK336581A/en not_active Application Discontinuation
- 1981-07-28 CA CA000382655A patent/CA1159298A/en not_active Expired
- 1981-07-29 CS CS578481A patent/CS228148B2/en unknown
- 1981-07-29 PL PL23240081A patent/PL232400A1/xx unknown
- 1981-07-29 DD DD23218581A patent/DD201616A5/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ATE9498T1 (en) | 1984-10-15 |
| YU186881A (en) | 1984-04-30 |
| NO812576L (en) | 1982-02-01 |
| PL232400A1 (en) | 1982-04-13 |
| FI812291L (en) | 1982-01-30 |
| AU536876B2 (en) | 1984-05-24 |
| HU185442B (en) | 1985-02-28 |
| AU7351581A (en) | 1982-09-23 |
| ES504936A0 (en) | 1982-06-01 |
| DD201616A5 (en) | 1983-07-27 |
| CS228148B2 (en) | 1984-05-14 |
| ES8205287A1 (en) | 1982-06-01 |
| DK336581A (en) | 1982-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |