Preforming plastic surface layer for playground and manufacturing method of preforming plastic surface layer

Abstract

The invention provides a preforming plastic surface layer for a playground. The preforming plastic surface layer comprises a prefabricated coiled material detachably connected with a ground foundation. The prefabricated coiled material comprises a plurality of color main ground coiled materials with the electric heating function and a plurality of single-color auxiliary ground coiled materials, and the main ground coiled materials and the auxiliary ground coiled materials can be spliced to form a closed court surface layer. According to the ground coiled material surface layer, improvement is carried out on the basis of the prior art, and a colloidal liquid construction plastic court originally needing to be processed on site is changed into the modular plastic court surface layer with a prefabricated model capable of being paved on site. On-site mixing construction is not needed. Thus, after the coiled material is paved, the thickness is uniform and unified, the main ground coiled materials and the auxiliary ground coiled materials can be spliced to form a complete plastic court, the coefficient of resilience is unified during use, and the problems that in the prior art, in a plastic court of on-site mixing processing, the coefficients of resilience are prone to being inconsistent, and cracks, bumps, demounting difficulty and the like are prone to happening are solved.

Description

technical field [0001] The invention relates to the technical field of infrastructure, in particular to a preformed plastic surface layer for sports fields and a manufacturing method thereof. Background technique [0002] At present, there are two types of stadium plastic surfaces that are widely used, one is on-site material processing and paving; the other is prefabricated roll materials to on-site paving. The above two types of plastic surfaces for sports venues have the following defects in production and construction: [0003] 1. Defects of on-site ingredient processing and paving plastic surface: [0004] It is necessary to transport various single materials to the sports field site, and carry out on-site batching according to the formula provided by the manufacturer, and a professional construction team and professional construction machinery will pave the plastic surface layer on the sports field construction site. The main construction equipment used are: electron...

AI Technical Summary

Problems solved by technology

[0005] Disadvantage 1: inconsistent resilience

Due to the flatness of the sports field foundation, the plastic surface layer paved on site will have different thicknesses after paving. The uneven thickness of the plastic surface layer will lead to different rebound coefficients in various areas of the plastic surface layer on the sports field. Hard unevenness is very common, affecting athletes' sports experience and easily causing sprains to athletes;

[0006] Disadvantage 2: inconsistent adhesion

Pave or spray a certain area of ​​venues after each batch of material is prepared, and then continue to deploy the next batch of materials to pave or spray the next area of ​​venues. A complete sports field needs to be divided into multiple days and multiple batches of materials. Moreover, all the ingredients are manually operated, and the mixing of various materials creates a lot of uncertainty. The ratio of ingredients in each can is inconsistent, and human errors are large, so it is impossible to ensure that the ratio of each ingredient is consistent.

In the end, the quality of each area of ​​the entire sports field is uneven, the adhesion is inconsistent, and individual areas are seriously vulnerable

[0007] Disadvantage 3: Poor predictability. The plastic surface layer of on-site batching and paving needs to purchase a variety of raw materials from material manufacturers, and many different materials are required from the plastic bottom layer to the surface layer.

Moreover, the material quality of different material manufacturers is also uneven. The performance of the materials prepared by the same ingredient ratio under the influence of different temperature, humidity, light and other on-site factors is also different. The construction level of each worker in the same construction team is different. Similarly, the quality of the plastic site after construction is uneven, and the overall quality and effect after paving cannot be expected before the actual operation, and the predictability is poor.

[0008] Disadvantage 4: It is seriously affected by weather and seasons. The plastic surface layer paved with ingredients on site must be constructed in sunny and warm weather. It cannot be constructed in rainy days or winter.

[0009] Disadvantage 5: Long construction period, long maintenance period, and long waiting period for putting into use

[0010] Disadvantage 6: It is difficult to maintain in the later stage, and the repaired sports field is easy to cause injury to athletes. If the plastic surface layer of the on-site material paving is damaged in some areas later, it is difficult to repair. For example, the damaged runway area is generally cut in a square shape. Then remove the plastic layer in the area, and then re-pave the area. Due to the relatively small area, considering factors such as freight, cost, and repair area limitations, construction equipment such as pavers cannot be used for actual repairs. , so all the on-site repairs are done manually, which creates more uncertain factors in it. First of all, is the ratio of materials consistent with the ratio when the plastic track was newly built? Are the brands and quality of various raw materials the same as those used when the plastic runway was first built? Secondly, can the compaction and adhesion of the plastic repaired by manual construction be compared with that of the original machine construction? Again, is the elasticity and surface texture consistent with the original? Finally, there will be obvious repair marks at the junction of the old and new plastics, which can easily cause damage to athletes after repairing (the main reasons are as follows: 1. The height difference between the old and new runways is inconsistent; 2. The difference in density between the old and new runways leads to inconsistent impact absorption elasticity; 3. Due to the manual partial spraying of the surface layer, the texture of the old and new runways is inconsistent, that is, the anti-skid value is inconsistent)

All of the above situations will lead to difficulties in the later maintenance of the actually paved plastic surface

[0011] 2. Defects in the plastic surface layer of prefabricated coils

[0013] Disadvantage 1: There are many seams and no pertinence. The plastic surface layers of all existing brands of prefabricated coils are factory-fixed specifications, and the corresponding prefabricated plastic coils will not be produced separately according to the actual situation of the customer's site, and When encountering different color partitions, only two prefabricated coils of different colors can be used to splice together, resulting in too many seams during actual paving, and the splicing phenomenon is serious. The plastic sports field after paving has too many seams, resulting in a The failure rate increases in the later period, which greatly reduces the service life of the sports field

[0014] Disadvantage 2: There is no radian and no corner. The existing prefabricated coiled plastic surface is straight when it leaves the factory. When it is paved in the corner area of ​​the sports field, the straight coiled material is deformed into an arc form by external force. , the deformed coil is unevenly stressed inside and outside the inner and outer rings, and the thickness is different, which is easy to cause damage to the athletes

In particular, the frost heaving coefficient after the change of cold and heat is inconsistent, which leads to the most prone to cracks and bulges at the corners, which greatly reduces the service life of the sports field

[0015] Disadvantage 3: It is difficult to maintain the corner at the later stage, and the sports field after maintenance is easy to cause injury to athletes

[0019] Disadvantage 1: It is difficult to remove snow and ice in winter. The surface of the plastic surface of the sports field is a rough surface with friction, and the texture of the plastic surface is relatively soft. Cause damage, especially after the snow has melted into ice, it is almost impossible to remove this thin layer of ice, causing most of the plastic sports fields in the north to be unusable in winter

[0020] Disadvantage 2: The marking line is inaccurate. The marking process after all the plastic surface paving is done manually requires workers to measure the on-site size and draw the proper functional marking line. The human error is large, which eventually leads to the actual paving The marking line of a good plastic sports field is not accurate

[0021] Disadvantage 3: The site is dirty, messy, and seriously polluted. The large amount of glue used on site and the spraying and marking of the surface will produce a large amount of liquid droplets, which can easily splash onto the surrounding roads and facilities, causing pollution

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