CN215518227U - Seamless prefabricated plastic course system - Google Patents
Seamless prefabricated plastic course system Download PDFInfo
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- CN215518227U CN215518227U CN202120229618.0U CN202120229618U CN215518227U CN 215518227 U CN215518227 U CN 215518227U CN 202120229618 U CN202120229618 U CN 202120229618U CN 215518227 U CN215518227 U CN 215518227U
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Abstract
According to the seamless prefabricated plastic track system, the base layer is used as the bottom surface, and the bottom-coating adhesive layer, the prefabricated buffer layer and the anti-skid surface layer are sequentially arranged from bottom to top. The utility model is more environment-friendly, has better elasticity, better motion performance, long service life and higher comprehensive cost performance.
Description
Technical Field
The utility model relates to the field of pavement construction and paving, in particular to a seamless prefabricated plastic track system applied to various sports centers and stadiums.
Background
The prefabricated plastic track is one sports ground or track, and has flat structure, friction surface layer, shock absorbing bottom layer and adhesive layer between the shock absorbing bottom layer and the foundation.
The traditional prefabricated runway in the prior art is usually made of rubber, the thickness of the traditional prefabricated runway is about 13mm before delivery, then the traditional prefabricated runway is directly spliced on site, and gaps at the spliced position are covered by white lines. Learn through the long-time use feedback of user, because traditional prefabricated type runway is by rubber class raw materials extrusion after the vulcanization, receives the influence of temperature easily, and expend with heat and contract with cold can be more severe, causes the seam crossing fracture very easily, then sticks up the limit. And the prefabricated type rubber runway of traditional vulcanization technology production generally is on the hard side, especially uses in a period after, leads to its performance along with ageing to be worse and worse, and can be harder and harder, and its shock absorption's ability also can be worse and worse, need provide the requirement of protection when can't satisfying the motion, in addition, along with ageing phenomenon's serious, its condition of fracture, sticking up the limit also can generally appear.
The polyurethane plastic runway is formed by paving, pouring or spraying on a construction site, has good aging performance and difficult loss of motion performance, but the construction period can be very long if the large construction is carried out in summer, and the construction site is constructed, the thickness of the runway cannot be well controlled due to the horizontal problem of operators, the water-tight plastic runway is easy to cause water accumulation in local areas, the physical properties are different due to uneven thickness, and the comfort of foot feel is very poor. Meanwhile, each process is basically leveled by a paver or liquid self-leveling when the polyurethane runway is constructed, and the next process is carried out after solidification, particularly for the micro-foaming all-plastic or mixed type runway which is widely applied at present, if the bonding strength between layers is not good, the delamination phenomenon is easy to occur, the performance of the runway is influenced, the service life is greatly reduced, and the maintenance is difficult.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a seamless prefabricated plastic track system by knowing the advantages and the disadvantages of a prefabricated rubber track and a polyurethane plastic track in the prior art, the raw materials of the whole seamless prefabricated plastic track system are polyurethane adhesives, vulcanized rubber products with poor aging property are not used, buffer layers with the thickness of 10mm are prefabricated in a factory, the thickness is uniform, the surface layer is 3mm thick and constructed on site, gaps left when the prefabricated buffer layers are laid can be perfectly covered, the whole seamless structure is formed, the whole thickness is well controlled, water is not easy to accumulate after rain, in addition, the prefabricated buffer layers are manufactured by adopting a particle throwing process, the finished surfaces are uneven and convex particles, and the bonding strength between the layers is very firm when the next process is constructed again, delamination is difficult.
The utility model discloses a seamless prefabricated plastic track system, which has the following specific structure:
a seamless prefabricated plastic course system, includes basic unit, its characterized in that:
the base layer is used as a bottom surface and is sequentially provided with a bottom coating adhesive layer, a prefabricated buffer layer and an anti-skid surface layer from bottom to top.
A seamless prefabricated plastic track system according to the utility model is characterized in that the foundation layer is in particular a cement concrete foundation layer or an asphalt foundation layer.
The seamless prefabricated plastic track system is characterized in that the base coat adhesive layer is used as an adhesive layer between the base layer and the prefabricated buffer layer, specifically, the base coat adhesive layer is formed by blade coating double-component polyurethane adhesive on the upper surface of the base layer, wherein the dosage of each square meter of the base coat adhesive layer is 0.5-0.8 kg, and the thickness of the base coat adhesive layer is 0.5-0.8 mm.
The double-component polyurethane adhesive used in the utility model has the characteristics of high permeability, high strength and micro-foaming, can well bond the base layer and the prefabricated buffer layer as the bonding layer, and has less consumption and high strength compared with the traditional prefabricated bonding.
The seamless prefabricated plastic track system is characterized in that the prefabricated buffer layer has the specific size of 1-1.5 meters in width, 10-15 meters in length and 5-15 mm in thickness, the prefabricated buffer layer has a structure of 5 layers from bottom to top, the prefabricated buffer layer specifically comprises a first two-component polyurethane elastomer glue layer, a thermoplastic polyurethane foaming particle layer bonded on the glue layer in a throwing mode, an ethylene propylene diene monomer rubber particle layer covering the foaming particle layer and the glue layer, a second two-component polyurethane elastomer glue layer and an ethylene propylene diene monomer rubber particle layer covering the glue layer, and the prefabricated buffer layer is rolled and packaged into a coiled material.
During specific construction, the thicknesses of the glue layer, the foaming particle layer and the rubber particle layer can be adjusted according to the material consumption and the actual requirement.
The seamless prefabricated plastic track system is characterized in that the particle size of the foaming particles of the thermoplastic polyurethane foaming particle layer in the prefabricated buffer layer is 2-8 mm, the shape of the foaming particles is circular or elliptical, and the bulk density of the thermoplastic polyurethane foaming particles is 20kg/m3～50kg/m3。
The seamless prefabricated plastic track system is characterized in that the rubber particles of the ethylene propylene diene monomer particle layer in the prefabricated buffer layer have the particle size of 1-4 mm and are irregular cuts.
The seamless prefabricated plastic track system is characterized in that the thickness of the anti-slip surface layer is 3mm, and the anti-slip surface layer completely covers gaps left when the prefabricated buffer layer is laid, so that the seamless prefabricated plastic track system is formed.
The utility model discloses a seamless prefabricated plastic track system, which is characterized in that: through reasonable utilization of thermoplastic polyurethane foaming particles in the prefabricated buffer layer and effective application of polyurethane bonding concave-convex surfaces, bonding strength between layers is firmer, and delamination is difficult, so that the whole system can meet the strict requirements of new national standard GB 36246 plus 2018 on impact absorption of the plastic runway, and can also ensure firmer bonding between layers, delamination is difficult, use is more durable, the whole system is more environment-friendly, better in elasticity, more stable, better in motion performance and high in comprehensive cost performance. It is suitable for use in large, middle and primary schools, various sports centers and stadiums.
The seamless prefabricated plastic track system has the following beneficial effects that:
1. according to the seamless prefabricated plastic track system, the buffer layer is prefabricated by using the polyurethane material in a factory, and the problems of easy cracking of a prefabricated type, poor impact absorption performance, long polyurethane construction period and the like are effectively solved by combining the process of constructing the surface layer on site;
2. according to the seamless prefabricated plastic track system, the prefabricated buffer layer is provided with the uneven particle surface, so that the bonding firmness between layers is greatly improved, polyurethane foaming white polyurethane foaming particle beads capable of improving the impact absorption capacity and resilience of the system are added into the prefabricated buffer layer, the impact on the foot in the running process is effectively absorbed, good prefabrication performance is provided for the foot, and a large amount of energy can be fed back by the high resilience effect of the material;
3. the seamless prefabricated plastic track system is more environment-friendly, better in elasticity, better in motion performance, long in service life and higher in comprehensive cost performance.
Drawings
FIG. 1 is a schematic diagram of a seamless prefabricated plastic track system according to the present invention;
fig. 2 is an enlarged view of the structure of a preformed cushioning layer of a seamless preformed plastic track system of the present invention.
In the figure: the composite material comprises, by weight, 1-a base layer, 2-a bottom coating adhesive layer, 3-a prefabricated buffer layer, 4-an anti-slip surface layer, 3 a-a two-component polyurethane elastomer glue layer, 3 b-a thermoplastic polyurethane foaming particle layer and 3 c-an ethylene propylene diene monomer particle layer.
Detailed Description
A seamless preformed plastic track system according to the present invention is further described with reference to the accompanying drawings and examples.
Example 1-seamless prefabricated plastic track system with thickness of 13 mm.
As shown in fig. 1 and 2, a seamless prefabricated plastic track system comprises a base layer 1 as a bottom surface provided with an undercoat adhesive layer 2, a prefabricated buffer layer 3 and an anti-slip surface layer 4 in this order from the bottom.
The foundation layer 1 is concrete foundation layer or asphalt foundation layer.
The bottom coating adhesive layer 2 is used as an adhesive layer between the base layer 1 and the prefabricated buffer layer 3, and is specifically formed by coating a double-component polyurethane adhesive on the upper surface of the base layer in a scraping manner, wherein the dosage of each square meter of the bottom coating adhesive layer is 0.5-0.8 kg (0.6 kg in the embodiment), and the thickness of the bottom coating adhesive layer is 0.5-0.8 mm (0.6 mm in the embodiment).
The specific dimensions of the prefabricated buffer layer 3 are 1-1.5 meters (1.22 meters in this embodiment), 10-15 meters (10 meters in this embodiment), 5-15 mm (10 mm in this embodiment), and the structure of the prefabricated buffer layer is 5 layers from bottom to top, and specifically, the two-component polyurethane elastomer glue layer 3a of the first layer, the thermoplastic polyurethane foamed particle layer 3b bonded to the glue layer in a throwing manner, the ethylene propylene diene monomer particle layer 3c covering the foamed particle layer and the glue layer, the two-component polyurethane elastomer glue layer of the second layer, and the ethylene propylene diene monomer particle layer covering the glue layer.
Pouring two-component polyurethane elastomer glue into a horizontal mold prepared in advance when preparing the prefabricated buffer layer 3, wherein the using amount of the two-component polyurethane elastomer glue is 3 kilograms per square meter, uniformly scraping the two-component polyurethane elastomer glue on the bottom surface inside the mold, then uniformly throwing a layer of thermoplastic polyurethane foaming particles according to the amount of 0.6 kilograms per square meter, then throwing ethylene propylene diene monomer rubber particles in a covering mode until the liquid surface of the foaming particles and the glue is completely covered, completely curing the liquid after 2 hours, cleaning the particles which are not bonded on the surface by using a high-power dust collector (in the embodiment, the thickness reaches 5mm), then pouring the two-component polyurethane elastomer glue, wherein the using amount of the two-component polyurethane elastomer glue is 3 kilograms per square meter, after uniform scraping, again throwing the ethylene propylene diene monomer rubber particles in a covering mode until the liquid surface of the glue cannot be seen, after 2 hours the liquid is completely cured again (in this example, the thickness has reached 10mm), the particles which are not bonded to the surface are cleaned, and the prepared pre-made buffer layer is rolled and packed to form a coil.
The particle diameter of the foaming particles of the thermoplastic polyurethane foaming particle layer 3b in the prefabricated buffer layer 3 is 2 mm-8 mm, the shape is round or oval, and the bulk density of the thermoplastic polyurethane foaming particles is 20kg/m3～50kg/m3。
The particle size of the rubber particles of the ethylene propylene diene monomer particle layer 3c in the prefabricated buffer layer 3 is 1-4 mm, and the shape of the rubber particles is an irregular cutting body.
The thickness of antiskid surface layer 4 is 3mm, and the gap that leaves when this antiskid surface layer will prefabricate buffer layer 3 and lay covers totally, forms seamless prefabricated plastic course system.
The anti-slip surface layer 4 is constructed after the prefabricated buffer layer 3 is bonded on the construction site of the plastic track, and the anti-slip surface layer is formed by 14 parts of ethylene propylene diene monomer particles with the particle size of 0.5-2 mm, ethylene propylene diene monomer particle powder with the particle size of 0.1-0.5 mm, single-component polyurethane glue and color paste: 1: 10: 5, and then spraying the mixture on the upper part of the prefabricated buffer layer by a sprayer according to a covering manner in the front and back directions once respectively (in the embodiment, the thickness reaches 13mm, and the preset requirement is met).
In this embodiment, the implementation steps of the seamless prefabricated plastic track system of the present invention are as follows:
1) the base layer 1 is first treated:
the base layer adopting the cement concrete needs to be flat, the surface has no sand-forming phenomenon, if the sand-forming loosening condition exists, the grinding and repairing treatment is needed, while the base layer adopting the asphalt needs to be hard, dry and bearing, loose particles do not exist, oil, grease, paint or other substances which hinder the bonding, and the flatness and the gradient of the cement concrete base layer or the asphalt base layer need to meet the requirements of related site construction technical specifications and design;
2) setting a bottom coating adhesive layer 2:
cleaning the area of a foundation layer to be constructed by using a blower before construction to ensure that the ground is dry and free of impurities, coating the upper surface of the foundation layer 1 with a double-component polyurethane adhesive in a scraping manner, wherein the range of the laying surface is required to be completely sprayed in place, and a missing area cannot be formed, and finally forming a bottom coating adhesive layer adhered with the foundation layer;
3) in the step 2), the using amount of the double-component polyurethane adhesive is 0.6 kg/per square meter, and the thickness of the base coat adhesive layer (2) is 0.6mm
4) Setting a prefabricated buffer layer 3:
within 30 minutes after the two-component polyurethane adhesive used for the bottom-coating adhesive layer 2 is coated in a scraping way, each roll of prefabricated buffer layer 3 which is prefabricated is unfolded and laid on the bottom-coating adhesive layer in an extrusion way, each roll of prefabricated buffer layer is tightly connected to reduce gaps, a roller with the weight of 50 kilograms is used for rolling in the same direction after the laying is finished, air bubbles possibly existing below the prefabricated buffer layer are removed, the prefabricated buffer layer is leveled, and then fixed bricks are used for flatly pressing the peripheral edges of the prefabricated buffer layer until the two-component polyurethane adhesive of the bottom-coating adhesive layer for bonding with the prefabricated buffer layer is completely solidified;
5) in the step 4), before the bottom coating adhesive layer 2 is not solidified, the paved coiled material is prevented from moving, the phenomenon that the abutted seam is too large or the local hollowing is caused by the disturbance of the coiled material is avoided, and the selection standard of the fixed brick is to select the brick with high specific gravity, flat bottom surface, no cracking and no dust falling;
6) setting an anti-slip surface layer 4:
mixing ethylene propylene diene monomer particles with the particle size of 0.5-2 mm, ethylene propylene diene monomer particle powder with the particle size of 0.1-0.5 mm, single-component polyurethane glue and color paste according to the weight ratio of 14: 1: 10: 5, uniformly mixing and stirring, and spraying the mixture on the upper part of the prefabricated buffer layer 3 in the step 4) by using a spraying machine, wherein the spraying needs to be carried out for 1 time in the forward direction and the reverse direction respectively;
7) 1.4 kilograms of ethylene propylene diene monomer particles, 0.1 kilogram of ethylene propylene diene monomer particle powder, 1 kilogram of single-component polyurethane glue and 0.5 kilogram of color paste are used per square meter in the step 6), and the thickness of the anti-skid surface layer is 3 mm;
8) standing for 8-12 hours after the step 6) is finished, drawing a runway line after the spraying material is completely cured, and then naturally curing for 3-5 days to be used in a formal open mode.
Example 2
The anti-slip surface layer in the step 6) of the construction method can be treated by adopting another implementation mode, and the method comprises the following steps:
with two ingredient polyurethane elastomer glue blade coating, the levelling is behind prefabricated buffer layer upper surface, ethylene-propylene-diene monomer granule is shed to the overlay, treat two ingredient material after curing completely, clean the ethylene-propylene-diene monomer granule that does not bond and form, the quantity of two ingredient polyurethane material per square metre is 2.5 kilograms in this embodiment, the particle diameter of the ethylene-propylene-diene monomer granule of shedding is 1 ~ 3mm, the actual quantity of granule is 3 kilograms, surface course thickness is 3mm, promptly, the thickness of whole seamless prefabricated plastic course system is 13mm equally.
However, those skilled in the art should recognize that the above-described embodiments are illustrative only and not limiting to the present application, and that changes and modifications to the above-described embodiments are intended to fall within the scope of the claims of the present application, provided they fall within the true spirit and scope of the present application.
According to the seamless prefabricated plastic track system, the base layer is used as the bottom surface, and the bottom-coating adhesive layer, the prefabricated buffer layer and the anti-slip surface layer are sequentially arranged from bottom to top. The seamless prefabricated plastic track system is more environment-friendly, better in elasticity, better in motion performance, long in service life and higher in comprehensive cost performance.
Claims (4)
1. A seamless prefabricated plastic track system comprising a base layer (1), characterized in that:
the base layer (1) is used as a bottom surface and is sequentially provided with a bottom coating adhesive layer (2), a prefabricated buffer layer (3) and an anti-skid surface layer (4) from bottom to top;
the foundation layer (1) is a concrete foundation layer or an asphalt foundation layer;
the base coat adhesive layer (2) is used as an adhesive layer between the base layer (1) and the prefabricated buffer layer (3), and is formed by coating a double-component polyurethane adhesive on the upper surface of the base layer in a scraping manner, wherein the dosage of each square meter of the base coat adhesive layer is 0.5-0.8 kg, and the thickness of the base coat adhesive layer is 0.5-0.8 mm;
its concrete size of prefabricated buffer layer (3) do, the width is 1 ~ 1.5 meters, length is 10 ~ 15 meters, thickness is 5 ~ 15mm, the structure of this prefabricated buffer layer is 5 layers from bottom to top totally, it specifically is, the two ingredient polyurethane elastomer glue layer (3a) of first layer, thermoplastic polyurethane foaming grained layer (3b) that the formula of shedding bonds on the glue layer, ethylene propylene diene monomer layer (3c) that has covered foaming grained layer and glue layer, the two ingredient polyurethane elastomer glue layers of second layer and the ethylene propylene diene monomer grained layer that has covered this glue layer, this prefabricated buffer layer is rolled up, the packing makes the coiled material form.
2. A seamless preformed plastic track system as in claim 1 wherein said preformed plastic track systemThe particle diameter of the foaming particles of the thermoplastic polyurethane foaming particle layer (3b) in the buffer layer (3) is 2 mm-8 mm, the shape is round or oval, and the bulk density of the thermoplastic polyurethane foaming particles is 20kg/m3～50kg/m3。
3. A seamless preformed plastic track system according to claim 1, wherein said layer of epdm (3c) of the preformed cushion layer (3) has a rubber particle size of 1mm to 4mm and is shaped as an irregular cut.
4. A seamless preformed plastic track system according to claim 1, wherein the non-slip cover (4) has a thickness of 3mm and covers completely the gap left by the laying of the preformed breaker layer (3) to form a seamless preformed plastic track system.
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| CN202120229618.0U CN215518227U (en) | 2021-01-27 | 2021-01-27 | Seamless prefabricated plastic course system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075087A (en) * | 2022-07-20 | 2022-09-20 | 山东扬名新材料技术有限公司 | Prefabricated TPU (thermoplastic polyurethane) plastic track, preparation method and construction method |
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2021
- 2021-01-27 CN CN202120229618.0U patent/CN215518227U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075087A (en) * | 2022-07-20 | 2022-09-20 | 山东扬名新材料技术有限公司 | Prefabricated TPU (thermoplastic polyurethane) plastic track, preparation method and construction method |
| CN115075087B (en) * | 2022-07-20 | 2024-01-12 | 山东扬名新材料技术有限公司 | Prefabricated TPU plastic course, preparation method and construction method |
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