Method for construction of polyurethane track of sports field

Abstract

A method for constructing the polyurethane race track on sports ground includes preparing the base layer on the sports ground, prefabricating the standard polyurethane sheets (1.25mX5-25m) by mould, and tightly adhering the sheets on the base layer. Its advantages are high thickness uniformity and flatness, high weatherability, and high surface firmness.

Description

technical field [0001] The invention relates to a construction method of a polyurethane track and field track in a sports field. The method is to separate the bottom layer and the surface layer of a general polyurethane track and field track. The bottom layer involving drainage slope or flatness is still being constructed on site, while the elasticity, surface The surface layer with anti-slip roughness or pattern is changed to prefabricated by mold to form a plurality of surface skins with equal thickness, equal elasticity, equal surface roughness, and equal pattern; On the ground floor, and quickly complete a flat, standardized, high-quality track and field path. Background technique [0002] At present, the common standardized polyurethane track and field track on the sports field is generally composed of a bottom layer and a surface layer. Water slope or drainage system control, etc., and then lay the bottom layer, and the bottom layer material can generally use polyuret...

AI Technical Summary

Problems solved by technology

[0004] (1) During the construction of the surface layer, a layer of rubber particles or polyurethane particle layer laid before the polyurethane layer is hardened cannot meet the quality requirements of complete uniformity, so that the surface roughness is not uniform

[0005] (2) The adhesive combination of surface rubber particles or polyurethane particle layer and polyurethane layer cannot guarantee that each particle is firmly adhered (the particle is trapped in the polyurethane layer and protrudes a small part), and some particles with less adhesion area are easy to detach

[0006] (3) During on-site surface construction, the thickness of the polyurethane layer laid is not easy to control uniformly, resulting in uneven elasticity of the runway, which directly affects the molding quality of the runway

[0007] (4) When doing surface construction on site, the required experience and labor costs are high, which cannot effectively improve the construction speed or quality

[0008] In view of the lack of traditional manufacturing of polyurethane runways, the industry has proposed improved methods: such as the invention patent of "PP (polypropylene) resin artificial turf sports field and stadium runway construction process" in Taiwan Announcement No. 348196, Case No. 86108945, Announcement No. 486531, Case No. 88110602 "SR (Synthetic Rubber) Resin Blanket Sports Field, Stadium Runway and Footpath" patent for invention, announcement number 445333 case number 86108945A01 "PP (polypropylene) resin artificial turf sports field, stadium runway construction process addition (1)" invention patent , and the new patent of "PP Resin Artificial Runway" with announcement number 268472 and case number 84209995 with similar effects, among which, although the technical content of each patent covers not all the concepts of on-site construction on the runway, each process method There are still some unsatisfactory parts in it, such as: the invention patent of "SR (Synthetic Rubber) Resin Blanket Sports Field, Stadium Runway and Footpath" of Announcement No. 486531, Case No. 88110602, which uses synthetic rubber as the initial surface material, and not only requires high pressure and high temperature It can only be formed, so that the processing cost is relatively increased and it is difficult to effectively control the forming quality. In addition, it uses the roller group to roll the pasty A material (see its manual) into a long sheet-shaped product, which is similar to noodles. Production, rather than high-pressure extrusion such as aluminum extrusion, makes it difficult to effectively control the width and size, and when using it, the long sheet-shaped molding must be cut into a predetermined size before laying (see its manual), which is likely to cause waste of moldings. It is not suitable for common standardized track and field specifications. In addition, the weather resistance of rubber is not good, the surface physical properties are easy to deteriorate, and it is not resistant to damage by spikes

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