Asphalt paver and method for producing asphalt surfaces using this paver

Description

[0001] The invention relates to a paving machine for asphalt surfaces according to the preamble of claim 1 and a method for producing such asphalt surfaces according to the preamble of claim 11.

[0002] The invention relates in particular to a paver and a method for producing road surfaces in the form of bituminous asphalt pavements. The paver comprises a body movable by means of chains or wheels, with a mixing hopper for receiving a supply of an asphalt mixture, a conveying device for conveying the asphalt mixture, an application device for applying the asphalt mixture received from the conveying device as an asphalt surface onto a substrate, and a compaction device for pre-compacting or compacting the asphalt surface applied to the substrate.

[0003] Pavers for laying road surfaces usually have a driver's cab where at least one person is stationed to drive and operate the functions. Furthermore, other members of the construction crew, known as track walkers, typically stand to the right and left of the paver to monitor the filling of the mix hopper and to control and monitor the application of the asphalt layer. To produce low-noise asphalt, as well as to increase lateral stability, additional substances are often added to the asphalt mixture of bitumen and aggregate. These can include polymers to increase the absorption capacity for lateral forces, blowing agents to produce foamed asphalt, or other additives.

[0004] Particularly during hot processing in the temperature range above 150 °C, and especially during the processing of so-called distillation and air-rectified bitumen, vapors and aerosols are produced which are suspected of being carcinogenic.

[0005] The permissible maximum workplace concentration (MAK) was therefore set by the MAK Commission at 1.5 mg / m³ for the hot processing of distillation bitumen.

[0006] To reduce emissions, one approach is to lower the processing temperature to reduce evaporation rates. This is achieved by using so-called low-temperature (LT) asphalt, also known as low-temperature asphalt (NTA), or by adding viscosity-reducing components that can lower the processing temperature by 20 to 30 °C. Typical delivery temperatures for the asphalt mix are, for example, between 140 °C and 160 °C. Furthermore, in France, extraction systems have already been used to remove the fumes, resulting in a 35% reduction in exposure to bitumen fumes and aerosols at the paver (see DGVU German Social Accident Insurance - DGVU Forum magazine 4 / 2020).

[0007] The use of foamed bitumen allows for a significant reduction in the delivery and processing temperature of the asphalt mix. While conventional asphalt mixes can reach temperatures of up to 170°C, foamed bitumen can be processed at approximately 140°C. Measurements have shown that the maximum allowable concentrations (MAK values) for air pollution depend not only on the weather, particularly wind, but also on the individual's position relative to the paver and the asphalt temperature. For example, the driver is often exposed to the highest concentration of 7-8 mg / m³, while the concentration for track walkers can be 4 mg / m³ or higher. Although the use of the aforementioned materials, which are processed at lower temperatures, can reduce pollution levels, their use is not always feasible, and while it leads to improvements, it does not achieve optimal results.

[0008] In principle, it is desirable to better protect the members of the construction crew and also nearby passers-by from health risks caused by rising fumes and aerosols.

[0009] A paver of this type, offering improved protection for personnel, is known from EP 3 276 081 A1. This paver comprises a screed assembly for laying a track of asphalt material, a tank for storing a coolant, and a misting device designed to draw coolant from the tank and atomize it into a coolant mist in the vicinity of the paver. By cooling the surrounding area, the amount of harmful exhaust gases released by hot road construction material can be reduced. In this paver, the coolant mist extends upwards from the screed assembly to a height of approximately 0.7 m, particularly approximately 1.0 m, and especially approximately 1.50 m, and can also be sprayed alongside the paver.

[0010] While the aforementioned paver does reduce the amount of harmful gases, the effectiveness of this reduction could be improved. Furthermore, the coolant mist rises alongside the paver, potentially exposing accompanying personnel to it.

[0011] Further asphalt pavers are known from DE10 2011 001 542 B4 or DE10 2010 029 705 A1. These pavers are typically filled with asphalt mix produced in an asphalt mixing plant via tipper trucks. The asphalt mix is ​​continuously fed to the application device via the conveying system. This device applies a thin layer of asphalt to the subgrade, and a compaction unit on the paver first pre-compacts this fresh layer before it is, not necessarily, but usually, finally compacted by external compactors in the form of rollers.

[0012] A road construction machine with at least one screed arrangement and a ventilation system with a fan is known from EP 2 672 008 A1. This includes a machine control system that automatically, independently of the operator and solely on a demand basis, determines the need for the operation of a ventilation system and starts the ventilation system automatically and independently of the operator during operation.

[0013] Another paver is known from EP 1 925 736 A1. This has a spraying system on the vehicle with at least two spraying devices arranged laterally offset from each other to the direction of travel and a control device which operates the spraying devices according to a method such that a spray carpet with front and rear boundaries in the direction of travel is produced during a movement of the vehicle.

[0014] A flue gas cleaning system for an asphalt paver to reduce harmful flue gases released from the asphalt in the mix hopper of a paver during paving is known from US 5,938,371 A. This flue gas cleaning system utilizes the existing sheet metal walls of the mix hopper and the pavement structure and a high-performance blower that expels the exhaust gases well above the machine operators via a tall exhaust stack.

[0015] Another device is known from EP4056759A1.

[0016] However, all these systems have the disadvantage that exhaust gases escaping from the sides and under the paver are kept away from the operators as effectively as possible.

[0017] The object of the invention is therefore to create a paving machine in which the concentration of toxic gases in the operating area is reduced. Furthermore, it is a further object of the invention to create a process for producing asphalt pavements with reduced pollutant levels for the columns carrying out the process.

[0018] According to the invention, these problems are solved with respect to the manufacturer by a manufacturer according to claim 1 and with respect to the method by a method according to claim 11.

[0019] The new paver is characterized in particular by the fact that the body has access to a liquid supply, in particular by having at least one liquid tank, and at least on one side—the front, the rear, or a longitudinal side—a spraying device and pumping means for at least partially dispensing a liquid along the side toward the substrate via at least one dispensing nozzle or a row of nozzles. The new method for producing the asphalt pavement is characterized in that the surrounding ground or the edge of the asphalt layer is cooled by spraying with water mist, water droplets, and / or by a falling curtain of water jets, or that vapors and aerosols are removed by condensation and flushing of the rising air through the water.

[0020] The essential basic idea of ​​the invention is the fact that cooling water can both quickly cool down the freshly applied asphalt layer to prevent the further rising of vapors and aerosols, and can also remove pollutants present in the air from the ambient air by condensation and rinsing.

[0021] According to the invention, the paver is provided with at least one spray device and a liquid supply, preferably consisting of a tank for the cleaning fluid and a pump device. The spray device generates the water mist, a curtain of water droplets, or water jets. The amount of liquid can vary depending on the application and the required cooling capacity, or depending on the contamination of the air. Preferably, the known paver is further developed such that, at least in the areas where the new layer of hot asphalt has been applied, a spray is applied, essentially along an elongated line or surface.

[0022] In a preferred embodiment, the spraying device is designed such that, via a suitable nozzle geometry in or a plurality of individual nozzles, moisture falls down in atomized, droplet, or liquid jet form, such that a strip of a certain width and length, extending transversely to the direction of travel and work, is misted or sprinkled. This strip can be, for example, 10 cm, 20 cm, or even 50 cm wide.

[0023] By using a water mist system, the ambient temperature of an area at 40°C can be lowered by approximately 10°C due to the evaporation temperature, regardless of the water temperature. Since the surface temperature and the temperature of the convectively rising air just above the asphalt are significantly higher, particularly well above 100°C, the area can be cooled by up to 12-13°C. This can be used in addition to or as an alternative to the measures described above. A proven spacing between the spray nozzles of the spraying device is, for example, between 200 and 250 mm.

[0024] Depending on the application, the spray direction of the device is directed either towards the edge of the layer of hot asphalt or, if the primary purpose is air purification and cooling is not required, to the side of this layer. Furthermore, the spray device can also be positioned below the vehicle body, allowing not only the edges of the hot asphalt layer but also the central area to be cooled. All other methods of cooling a hot surface can also be applied here.

[0025] In a preferred embodiment of the paver according to the invention, each longitudinal side is sprinkled or sprayed with a curtain of moisture, either only along the layer of hot asphalt insofar as it is still within the paver's area, or along the entire side length of the paver, as described above. Many pavers have a body that is narrower than the application device, which can be located, for example, near the mix hopper, between the mix hopper and the operator. This means that the operator is positioned directly above the freshly laid asphalt layer, which explains the aforementioned high MAK values ​​compared to the track walker. Here, the spray device can cover this narrow area of ​​the body, so that the spray device moves laterally with the body over the laid layer. A lateral adjustment of the spray direction can cover the laterally projecting area to protect the track walker.

[0026] The area at the rear, perpendicular to the direction of travel and work, can also be sprayed in the same way using a spray device. This has a direct cooling effect across the entire width of the hot asphalt layer. To prevent vapors and aerosols from escaping on the opposite side due to convective airflow, a spray device can also be provided there.

[0027] In connection with the aforementioned spray devices, this can of course be a single spray device with correspondingly long outlet channels / nozzles, or one or more separate spray devices on each side. Multiple tanks and multiple pumps can also be provided. Ultimately, for the implementation of the invention, it is essential that a curtain of atomized water, water droplets, or water jets is provided in the necessary areas.

[0028] Ultimately, the number and arrangement of the spray device(s), the number of spray nozzles used, their water flow rate, and spray angle will depend on the design of the paver and, if applicable, the material being processed. It is important to generate a cooling effect for the surface of the laid asphalt layer and / or in the rising steam, such that pollutants are reduced either by decreasing steam emissions or by condensing and purging the steam where air enters the breathing zone of the construction crew. Therefore, the area around the driver and the track walkers should be particularly protected by the resulting cooling effects, taking into account the flow paths of the rising steam.

[0029] The effect of the invention can be enhanced by additionally providing cladding on the paver. For this purpose, flow-directing plates can be provided as lateral vapor and aerosol barriers. The plates preferably hang down from the side surfaces or the front or rear of the paver, or are fixed in front of the lower areas of these surfaces. A similar solution is known as track guards and ballistic protection for infantry fighting vehicles. Preferably, in this case, the spraying device is arranged directly behind these plates, so that the escaping gases and aerosols collect at these edge areas behind the plates and are immediately sprayed by the spraying device.

[0030] Furthermore, water running down the panels, similar to what is known from spray booths in a paint shop, can form a dense curtain on the underside of the panels, thus preventing the escape of vapors and aerosols from below. Finally, the panels can also have channels on their underside, similar to rain gutters, to collect the runoff. From these channels, the runoff water can be conveyed, either by flow or by pumping, into a wastewater reservoir for cleaning and reprocessing. Multiple uses of the water are also possible; in this case, the runoff and collected water is returned to the paver's liquid tank.

[0031] At the front of the paver, the plates are preferably designed to be at least partially elastic, allowing them to be folded or bent backward in the direction of travel and operation, so that their lower edge rubs against the subgrade that has not yet been covered with a layer of asphalt. At the rear of the paver, the plates are also preferably designed to be elastic, so that they rub against the fresh asphalt surface to form a seal. A small gap may remain at the sides, where elastic elements can also be provided to rub against the subgrade. These could be chains, fabrics, or similar materials, which then also form a seal at the sides.

[0032] Additionally, extraction devices can be provided on both sides of the panels, or on one side only, or, if no panels are used as a vapor and aerosol barrier, independently of these panels, to further extract vapors and aerosols. Preferably, these extraction devices expel the extracted vapors and aerosols via an exhaust-like outlet device, which may include a cleaning device for filtering out the vapors and aerosols. The outlet device is preferably positioned high enough so that escaping gases exit outside the breathing air intake area of ​​the construction crew members.

[0033] Finally, the paver can also have a control or regulation system that automatically monitors the function of the pumps used to generate the liquid mist or curtain, or even the cleaning effect. For this purpose, a level monitoring system for the liquid tank can be provided, for example. If the liquid in the tank runs low, a signal can be triggered, or the paver can even be automatically shut down.

[0034] Finally, a device for monitoring the pollutant content of the ambient air may also be provided. This device can measure the contamination of air with pollutant-laden vapors or aerosols and either issue a warning signal or, again, shut down the operation of the machine, possibly after a certain tolerance period.

[0035] To obtain the air sample, either extraction devices as described above can be used, or separate intake devices can be provided, which can be used in particular to draw in air from outside the intake area or the area covered by the spraying device. This is the air that could potentially be inhaled by members of the construction crew, especially the paver operator and the track walkers. Air quality measuring devices, to which the extracted samples are added continuously or at intervals, can then be used to monitor a value significant for pollutant levels.

[0036] To monitor pollutant levels, it is not necessarily required to determine the proportion of the actual toxin within the vapors. It is usually sufficient to compare a corresponding value, such as the CO or CO₂ content, with the ambient value to determine the extent to which air affected by the work process comes into contact with the operating personnel. Of course, direct measurement of pollutants or other gas components in the rising vapor is also possible, as is measurement of the aerosol content.

[0037] In a further embodiment of the paver according to the invention, it is advantageous if the mix container has an upper, chimney-like cover. This cover can be in the shape of a chimney. The cover is opened for filling the mix container, for example by folding it up or sliding it. After the mix container is filled, the cover is then sealed by moving it into a service position, for example by folding it down or sliding it. This allows vapors rising from the mix to escape through a chimney in the cover, the outlet of which is located at least 1.5 m, preferably 1.8 m, and particularly preferably more than 2 m above the laid asphalt surface. Instead of the chimney, an additional extraction system or a suction device can be used to extract vapors from the interior of the cover and the mix container.

[0038] Furthermore, the underbody of the paver, with the exception of the air intakes, can be sealed off from the operating area where personnel are normally present on the paver. This deflects rising fumes, for example, away from the driver's cab, which was previously largely open underneath, thus providing the driver with additional protection.

[0039] Further features and advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings.

[0040] The drawings show: Fig. 1 shows a side view of a paver according to the invention, Fig. 2 shows an enlarged view of the rear part of a paver according to the invention, Fig. 3 shows a first, supplementary modification of the paver according to Figure 1 or 2 in a partial detail view and Fig. 4, a second, supplementary modification of the manufacturer according to the Figures 1 to 3 in a partial detail view.

[0041] In Figure 1 The illustration depicts a paver consisting of a body 3, which travels in a direction of travel and work F during the laying operation and includes an operator's cab for a driver and operator. A mixing hopper 4 is provided at the front, into which asphalt mixture 5 is filled as a supply via the tipper body of a truck. From this supply of asphalt mixture 5, hot asphalt is conveyed via a conveyor 6, here in the form of an extrusion screw, through a slot die to deposit a layer 1 onto the substrate 10 to form an asphalt pavement.

[0042] At the rear of the paver, a compaction device 11 in the form of press plates is provided, which performs preliminary compaction of the asphalt pavement 1. The final compaction is then achieved using roller vehicles. The paver shown here is moved by means of wheels 2 as an example; alternatively, the known chain drives are also possible. In this respect, the paver shown does not differ from devices known from the prior art.

[0043] The paver is equipped with at least one spray device 7 with at least one dispensing nozzle 8, but preferably with several spray devices 7, each with several dispensing nozzles 8, and a liquid supply, which may be provided by a liquid tank 9 and pumping means. The liquid can, in principle, be supplied by an accompanying vehicle, including an attached or pushed trailer, via a hose line or via a liquid tank 9 arranged on the body 3, as shown here. Liquid is supplied to the spray device 7 under pressure via pumping means, with corresponding dispensing nozzles 8 ensuring that the spray device 7 emits a downward-directed curtain of finely atomized water, droplets, or water jets, or a combination thereof, directed towards the subgrade 10 and the laid asphalt.

[0044] In the illustrated example, an elongated spray device 7 with outlet nozzles arranged one behind the other extends along each side of the body 3. The spray device 7 extends from front to rear along the sides to cool or wash away vapors that spread over the surface 10 of the slowly moving paver. This is particularly important for the driver, but also for walkers in the front area. In a preferred embodiment, the mix hopper 4 can either be closed with a lid, or, as is known from the chimney of a fireplace, passive or active vapor extraction can be provided above the hot asphalt mixture 5 to protect personnel from vapors rising from the mix hopper 4.

[0045] The spray devices 7 can also be located on the underside of the body 3, parallel to the direction of travel, perpendicular to the direction of travel, then at the front, the rear of the paver, or in between. Combinations are also possible.

[0046] Figure 2 Figure 1 shows an enlarged detail view of the front section of the paver with the spraying device 7. It can be seen that the spraying device 7 essentially consists of a pressure line running parallel to the body 3 and individual outlet nozzles through which the pressurized liquid in the pressure line can be discharged downwards in the desired width and fineness. Such a pressure line can extend all the way around the body 3; alternatively, separate pressure lines, i.e., independent spraying devices 7, are of course also possible.

[0047] Figure 3 shows a slightly different design of the spray device 7 of a paver, as it is used in Figure 1 As shown, a curtain of finely dispersed liquid, water jets, or liquid droplets is generated via the spray device 7 in the manner described above. However, the spray device 7 also features an additional extraction device 12, which allows for the extraction of rising vapors. This is achieved through intake openings on the underside of the multifunctional pressure line. Air can also be drawn in from the sides.

[0048] The intake air is preferably expelled via an exhaust system in an area far removed from the operating personnel, thus eliminating the risk of inhaling this air with the original pollutant concentration. Alternatively, purification can be provided, for example by means of activated carbon filters or by passing the air through a water bath, particularly to filter out aerosols and water-soluble pollutants from the intake air.

[0049] In Figure 4 Another embodiment is shown which, as a vapor and aerosol barrier, has 14 lateral plates 13. These lateral plates 13 serve to prevent a higher proportion of vapor or aerosols from escaping laterally from the vehicle area and entering the area occupied by the walkers.

[0050] In addition to direct flow control, the plates 13 also enable targeted spraying of the rising vapors and aerosols via the spray device 7.

[0051] The plates 13 can extend along the sides, over the entire length of the sides, or only partially, as well as over the front and rear of the paver's body 3. They can preferably extend to the surface of the substrate 10 or, if their lower edge extends onto the layer of hot asphalt, to its surface while leaving a gap. Insofar as the plates 13 are elastic or have lower, elastic edges, for example in the form of hanging fabric, hanging foils, chains, or similar flow barriers, they can also be moved along the substrate 10 by sliding along it.

[0052] Furthermore, the plates 13 can be positioned on the front and rear of the body 3. Here too, as in Figure 4 As shown, the plates 13 have a rigid upper section, for example, projecting obliquely forward, to which a hinged lower section, extending over the substrate 10, is attached. This lower section can be rigid, as shown here, and may also have rollers so that it can slide or roll on the substrate 10. Alternatively, elastic plates 13 or a lower elastic edge of a rigid plate 13 can also be provided here. The same applies to the front area of ​​the body 3.

[0053] The plates 13 of the vapor and aerosol barrier 14 have the further advantage that, in the event of a planned extraction of vapors, this extraction can be carried out more effectively with a lower negative pressure, since the extraction device 12, compared to a free lateral outflow of vapors, only needs to generate a lower negative pressure below the body 3 to effectively draw in vapors and aerosols. For this reason, this design of the paver is also possible without a spray device 7 and represents a viable alternative.

[0054] If a spray device 7 is provided, the liquid dispensed by this spray device 7 can at least partially be collected via a lower trough system (not shown here) and recycled, if necessary after cleaning the liquid. Reference symbol list:

[0055] 1 Asphalt surface 2 Wheel 3 Body 4 Mixing bucket 5 Asphalt mixture 6 Conveyor device 7 Spraying device 8 Dispensing nozzle 9 Liquid tank 10 Subgrade 11 Compaction device 12 Suction device 13 Plate 14 Vapor and aerosol brake Driving and working direction

Claims

1. Finisher (1) for asphalt surfaces, in particular for paving roads with bituminous black-top, comprising a carriage (3) that can be moved via tracks or wheels (2), which comprises • a mixing vessel (4) for holding a supply of an asphalt mixture (5) consisting of a bituminous component and a mineral filler, • a feeding device (6) for feeding the asphalt mixture (5), • a paving device for applying the asphalt mixture (5) received from the feeding device (6) as an asphalt pavement (1) onto a surface (10), and • a compaction device (11) for compacting the asphalt pavement (1) applied to the subgrade (10), wherein • the carriage (3) has a fluid supply and, at least on one side-the front, the rear, or a longitudinal side- and / or on the underside of the carriage (3), a spraying device (7) for at least partially dispensing a liquid along the side toward the subgrade (10) via at least one dispensing nozzle (8), and wherein • the carriage (3) comprises an extraction device (12) for vapors and aerosols rising from the asphalt mixture (5) and / or the asphalt pavement (1), and the extraction device (12) comprises intake openings that extend along the longitudinal sides, the rear, and the front of the carriage (3) or are distributed across these sides, characterized in that the carriage (3) includes a vapor and aerosol barrier (14) extending around the carriage (3) to retain vapors and aerosols that rise from the asphalt pavement (1) and escape from the underside of the carriage (3), wherein the vapor and aerosol barrier (14) is formed by surrounding curtains or panels (13) that extending downwards from the longitudinal sides, the rear, and the front of the carriage (3).

2. Finisher (1) for asphalt surfaces according to claim 1, characterized in that the extraction device (12) comprises a filter device and an outlet for filtered vapor, which is directed upward - in particular vertically - and is located above a driver's cab.

3. Finisher (1) for asphalt surfaces according to one of the two preceding claims, characterized in that the extraction device (12) is arranged inside the circumferential steam and aerosol barrier (14).

4. Finisher (1) for asphalt surfaces according to one of the preceding claims, characterized in that at least the carriage (3) comprises, for supplying the spray device (7), at least one liquid tank (9) and pumping means for pumping the liquid from the liquid tank (9) to the spray device (7).

5. Finisher (1) for asphalt surfaces (1) according to one of the preceding claims, characterized in that the spray device (7) is designed such that the spray device (7) is capable of emitting, along at least a portion of the side, a mist of finely dispersed liquid - in particular, atomized water - a curtain of liquid droplets, and / or liquid jets.

6. Finisher (1) for asphalt surfaces (1) according to one of the preceding claims, characterized in that the carriage (3) has discharge nozzles (8) on two opposite longitudinal sides and the rear side for discharging liquid toward the subgrade (10), wherein the discharge nozzles (8) on the longitudinal sides are distributed at least over the area of the asphalt pavement (1) laid by the paving device.

7. Finisher (1) for asphalt surfaces (1) according to the preceding claim, characterized in that the discharge nozzles (8) are distributed or extend along the entire length of the longitudinal sides, and the carriage (3) has discharge nozzles (8) on the front side for discharging liquid toward the substrate (10), wherein the discharge nozzles (8) are part of a common spray device (7), or the carriage (3) has, on each side - the front and the rear - a respective spray device (7) with discharge nozzles (8) for generating a liquid curtain on the respective side.

8. Finisher (1) for asphalt surfaces according to one of claims 4 through 7, in combination with a finisher that includes a liquid tank (9), characterized in that it comprises a control system capable of monitoring the fill level of the liquid tank (9) and / or the contamination of the ambient air, and triggers a signal and / or stops the operation of the paver if the fill level drops or exceeds a predetermined limit value for the maximum workplace concentration (MAK value), in particular for MAK values above 1.5 mg of pollutant per cubic meter of air.

9. Finisher (1) for asphalt surfaces (1) according to one of the preceding claims, characterized in that the mixing bowl (4) has an upper, chimney-like cover, wherein the cover can be opened and, after the mixing vessel (4) has been filled, to a operational position in a manner that seals it, and vapors rising from the mixture escape through a chimney, the outlet of which is located at least 1.5 m, preferably 1.8 m, and most preferably more than 2 m above the laid asphalt pavement (1), or are extracted by an additional extraction system or the extraction device (12).

10. Finisher (1) for asphalt surfaces (1) according to one of the preceding claims, characterized in that the underside of the finisher is sealed off from the area where the operating personnel are normally located on the finisher, with the exception of the intake openings.

11. A method for producing asphalt pavements using a finisher according to any of the preceding claims, comprising the following steps • continuous application of a layer of heated asphalt mixture (5) to a surface (10) using the finisher, • compaction of the applied layer by the finisher and / or by trailing rollers, • allowing the asphalt pavement (1) applied to the surface (10) to cool, wherein • in the direction of travel and work (F) of the paver during the application of the layer of heated asphalt mixture (5), at least along the rear longitudinal sides of the paver, via at least one spray device (7), a mist of finely dispersed liquid-in particular atomized water-a curtain of liquid droplets, and / or liquid jets is emitted toward the surface (10) on both sides of the finisher in order to bind vapors and aerosols rising from the layer and / or to cool the layer, characterized in that the side surfaces, the rear surface, and / or the front surface of the paver are equipped with gas-retaining plates (13), wherein the spray device (7) is designed and controlled such that the mist of finely dispersed liquid, the curtain of liquid droplets, and / or the liquid jets from the paver are sprayed toward the subgrade (10) on the inner side of the plates (13) to form a vapor and aerosol barrier (14).

12. A method for producing asphalt pavements using a finisher according to the preceding claim, characterized in that the bitumen-containing component of the asphalt mixture (5) is a mixture containing low-temperature bitumen (LT bitumen), in particular shredded or ground bitumen components constituting more than 50% of the mixture, additives in the form of wax and / or plastic, and a release agent.

13. A method for producing asphalt pavements using a finisher according to one of the two preceding claims, characterized in that, in the direction of travel and work (F) of the finisher, during the application of the layer of heated asphalt mixture (5), a mist of finely dispersed liquid - in particular atomized water - is applied to the rear and / or front of the finisher via a spray device (7), a mist of finely dispersed liquid - in particular, atomized water - a curtain of liquid droplets, and / or liquid jets is emitted toward the subgrade (10) on both sides of the finisher.

14. A method for producing asphalt pavements using a finisher according to any one of claims 11 through 13, characterized in that, via an extraction device (12), vapors and / or aerosols are extracted from the area adjacent to and below the finisher and are either first fed to a filter device and then discharged, or discharged directly into the environment, wherein the discharge of the vapors and / or aerosols is designed such that persons carrying out the method are not located within the exhaust plume of the discharge when the method is performed as intended.