JP4672171B2 - Pavement surface treatment method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for treating a pavement surface in which a resin mortar is filled into a surface space of a base pavement.
[0002]
[Prior art and its problems]
In recent years, paving bodies having voids on the surface typified by drainage pavement are rapidly spreading. The reasons for this include the improvement of visibility during rainfall due to the penetration of surface water, the effect of reducing tire noise, and the like. At the same time, however, this type of pavement tends to clog surface gaps over time, and aggregates are likely to scatter at intersections. When such a state is reached, the visibility during raining and the tire noise reduction effect are reduced, and the original function is lost. As one of solutions to such a problem, a method is known in which a water-permeable resin mortar is filled in a surface space of a pavement.
[0003]
However, the method of filling resin mortar into the surface gap of the base pavement has been mainly performed manually until now. This method is not efficient because it is difficult to sufficiently fill the surface voids with resin mortar, and it is difficult to make the surface texture uniform. Nevertheless, the work is being done manually because there was no suitable method and apparatus for filling the surface voids of the base pavement with resin mortar.
[0004]
[Problems to be solved by the invention]
The objective of this invention is providing the processing method and suitable apparatus of the pavement body surface for the basement pavement which has a space | gap on the surface to maintain the function over a long period of time.
[0005]
[Means for Solving the Problems]
In the first aspect of the present invention, the resin mortar is thinly laid on the surface of the base pavement having a gap on the surface, and the surface gap is filled by compacting with a vibration screed, and then the portion exceeding the height of the base pavement. In the pavement surface treatment method that selectively scrapes off the resin mortar, the resin mortar is laid out with a sliding screed, and a movable partition plate is attached in the middle of the sliding screed to adjust the construction width. It is the processing method of the pavement surface characterized by doing.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The base pavement subject to the present invention is a pavement having a void on the surface, and includes, for example, the following.
(1) Pavement using as a surface layer a mixture having continuous voids such as an open-graded asphalt mixture, drainage asphalt mixture, water-permeable asphalt mixture, porous concrete and the like.
(2) Pavement with a surface material made of a mixture with a rough finish such as large particle size asphalt mixture, split mastic asphalt (crushed stone mastic, SMA), lean concrete, compacted concrete.
(3) Pavement with coarse aggregate exposed on the surface, such as roll door asphalt sprayed with pre-coated crushed stones and asphalt macadam without sprayed or filled with crushing material.
(4) Pavement with artificially repetitive grooves on the surface.
[0007]
The resin mortar aggregate used in the present invention is one of artificial aggregate, natural aggregate, and elastic aggregate, or a mixture thereof.
More specifically, artificial aggregates include ceramic aggregates, glass cullet, natural aggregates include crushed stones, screenings, natural sand, etc., and elastic aggregates include rubber chips, urethane chips, cork grains, etc. There is. As the binder, an epoxy resin or a urethane resin is used. In addition, a pigment, a snow melting agent, or the like can be included to provide other functions. When the base pavement is made of a drainable mixture, it is particularly preferable to use a mixture of an aggregate having a particle size of 0 to 2 mm and a resin binder. When it is desired to improve water permeability, the particle size range of the mortar aggregate is preferably 0.5 mm to 2 mm. Moreover, the additive for adjusting hardening time can also be used.
[0008]
In the present invention, in the spreading step, the resin mortar is spread thinly on the surface of the base pavement. As an apparatus used for this process, a sliding screed is the best. In addition to the sliding screed, devices suitable for this step include a blade-type scraper and a rotary strike-off, and a screw spreader that spreads the material may be used in combination therewith.
[0009]
In the filling step, the resin mortar is consolidated and filled into the surface gap of the base pavement. An apparatus suitable for this step is preferably one that uses vibration, sliding, and tamping functions alone or in combination, but it is most preferable to perform vibration and sliding simultaneously. By simultaneously performing vibration and sliding, the resin mortar is pushed over the entire inside of the surface gap, and reliable adhesion is obtained between the aggregates of the resin mortar and between the resin mortar and the base pavement.
[0010]
In the scraping step, the resin mortar finished higher than the base pavement is removed using a finishing scraper, and the height of the aggregate top of the base pavement and the surface of the resin mortar are substantially the same. As a device applied to this step, it is generally preferable to use a blade-type scraper. Moreover, you may provide a sliding mechanism and a vibration mechanism as needed to this apparatus. The resin mortar accumulated in front of the finishing scraper is manually recovered because the amount of the resin mortar scraped off by the finishing scraper is very small when the base pavement is drainage pavement. Further, if necessary, a resin mortar accumulating device may be provided in the front part or rear part of the finishing scraper. Usually, since the recovered resin mortar is within the pot life, it can be transported and used again before the sliding screed.
[0011]
【Example】
The present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing an embodiment of the present invention, FIG. 2 is a plan view of a resin mortar filling machine, and FIG. 3 is a side view of the resin mortar filling machine. In the figure, 1 is a base pavement. The base pavement 1 has a void on the surface as described above.
[0012]
The work vehicle 2 includes a loading platform 3 on which an aggregate for resin mortar, a resin binder, a mixer 4 for producing resin mortar, and a generator 7 are mounted. A discharge chute 5 is connected to the mixer 4. When the gate (not shown) of the mixer 4 is opened after the resin mortar is kneaded, the resin mortar is discharged from the chute 5 onto the base pavement 1. In the present embodiment, the mixer 4 is mounted on the work vehicle 2, but a system in which the mixer is placed on the ground and transported onto the base pavement 1 filled with the manufactured resin mortar may be used.
[0013]
The resin mortar unloaded onto the base pavement 1 is filled into the surface gap portion of the base pavement 1 by the resin mortar filling machine 6. The resin mortar filling machine 6 may be self-propelled or towed. A generator 7 supplies power to each device of the mortar filling machine 6. The resin mortar filling machine 6 includes a sliding screed 9, a vibrating screed 10, and a finishing scraper 11. These apparatuses of the resin mortar filling machine 6 can adjust the vertical position independently.
[0014]
The sliding screed 9 spreads the resin mortar unloaded on the base pavement 1 uniformly to a predetermined thickness. The leveling thickness is adjusted by turning the vertical adjustment switch on the operation panel 8 or the vertical adjustment screws on both ends of the sliding screed 9 to adjust the clearance between the lower surface of the sliding screed 9 and the base pavement 1. Do. In addition, a movable partition plate is attached in the middle of the sliding screed 9 so that the construction width can be adjusted. Spreading is performed by converting the rotation of the motor 12 into a reciprocating motion and sliding the sliding screed 9 in the width direction of the resin mortar filling machine 6. Efficient construction can be achieved by adjusting the sliding width and number of sliding according to the viscosity of the resin mortar.
[0015]
The vibration screed 10 compacts the resin mortar laid thinly by the sliding screed 9 and fills the surface gaps, and ensures the adhesion between the resin mortar aggregates and between the resin mortar and the base pavement 1. Consolidation is performed by applying vibration to the vibration screed 10 by the vibration motor 14. Furthermore, it is more effective if the rotation of the motor 13 is converted into a reciprocating motion and the vibrating screed 10 is slid in the width direction of the resin mortar filling machine 6. Efficient construction can be achieved by adjusting the amplitude, vibration frequency, sliding width and sliding number according to the viscosity of the resin mortar.
[0016]
The scraper 11 for finishing scrapes off a portion of the resin mortar that exceeds the height of the base pavement 1 so as to be substantially the same as the height of the top of the aggregate of the base pavement 1. That is, the top of the aggregate of the base pavement 1 is exposed while leaving the resin mortar filled in the surface gap of the base pavement 1. As described above, the finishing scraper 11 is preferably made of a material that scrapes only the resin mortar and does not scrape the base pavement 1. Therefore, it is preferable to use rubber, a soft resin molded product, wood, or a thin metal plate. One scraper may be used, but if necessary, two or more scrapers may be scraped off. When the scraped resin mortar is collected manually, the finishing scraper 11 is angled with respect to the width direction of the resin mortar filling machine 6 as shown in FIG. 2 to smoothly finish the scraped resin mortar. It is preferable to gather at the end of the scraper 11 for use.
[0017]
By the above method and apparatus, the aggregate at the top of the base pavement 1 is exposed, and a pavement in which the surface gap is sufficiently filled with the resin mortar is obtained. If the base pavement 1 of the present invention is a pavement having a void on the surface, the pavement in use, the pavement before the pavement is completed and put into service, the pavement in the middle of compaction, and laid and tightened Any pavement that is not hardened may be used. In the said Example, although the resin mortar filling machine 6 is a single-piece | unit, this can be attached to the rear part of the spreading | laying apparatus of a surface layer mixture, for example, and the construction of the base pavement 1 and the filling of resin mortar can also be performed simultaneously.
[0018]
【The invention's effect】
Filling the surface gap of the base pavement 1 with resin mortar eliminates the surface gap of the base pavement 1 and makes it flatter, thereby reducing tire noise and suppressing the scattering of aggregates. Become. In addition, if the texture of the resin mortar is rough, the contact area between the road surface and the tire increases, so that the slip resistance is also improved.
Furthermore, in drainage pavement and the like, a drainage function is secured by using a water-permeable resin mortar in addition to these effects. Moreover, since the water-permeable resin mortar also functions as a filter layer, it is possible to prevent clogging of the pavement.
[0019]
By using the apparatus of the present invention, a series of operations can be performed continuously, the function of the base pavement 1 is strengthened, and a uniform road surface that does not impair the properties inherent to the base pavement 1 is obtained. Obtained quickly and easily.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an embodiment of the present invention. FIG. 2 is a plan view of a resin mortar filling machine. FIG. 3 is a side view of a filling portion of the resin mortar filling machine.
DESCRIPTION OF SYMBOLS 1 Base paving body 2 Work vehicle 3 Work vehicle loading platform 4 Mortar mixer 5 Chute 6 Resin mortar filling machine 7 Generator 8 Operation panel 9 Sliding screed 10 Vibrating screed 11 Finishing scraper 12 Sliding screed motor 13 Vibrating screed motor 14 Vibrating motor

Claims (5)

After spreading the resin mortar thinly on the surface of the base pavement with a gap on the surface, and compacting it with vibration screed and filling the surface gap, select the resin mortar in the part beyond the height of the base pavement. In the method of treating a pavement surface to be scraped off , the resin mortar is spread by a sliding screed, and a movable partition plate is attached in the middle of the sliding screed to adjust the construction width. Surface treatment method.   2. The method according to claim 1, wherein the resin mortar is filled by sliding the vibrating screed. 3. The method according to claim 1, wherein the resin mortar is scraped off by a finishing scraper. Claim 1 sliding according screed according to claim 1 or 2, vibration according screed, and claim 3 filling apparatus constructed resin mortar finishing scraper as a unit of description. The apparatus of claim 4, wherein equipped with a device for conveying to the previous slide screed scraped resin mortar according to claim 1, wherein.

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