Laying method of self-knotted grain-free environment-friendly plastic runway

Abstract

The invention discloses a laying method of an automatic texture formation particle-free environmentally-friendly plastic track. The method comprises the following steps: S21, laying a substrate layer: mixing an environmentally-friendly single-component water solidified plastic track material with black micelles according to a weight ratio of 1:4-6, and laying the substrate layer on a dry and solidified cement base or asphalt base; S22, laying a reinforcing layer: spreading a layer of the black micelles on the dry and solid base layer, and lying the environmentally-friendly single-component water solidified plastic track material to cover the substrate layer; and S23, laying an automatic texture formation layer: uniformly mixing 10-12 parts of an automatic texture formation finish, 1-3 parts of EPDM particle rubber powder and 3-6 parts of quartz sand to form an automatic texture formation layer material, fully stirring, and spraying the obtained material on the dry and solidified reinforcing layer. The track has the advantages of environmentally friendly material, no shedding of particles, good durability, plump and uniform surface textures, high tensile strength and long service life, and all performance indexes of the track accord with technical requirements of International Association of Athletics Federations and GB / T14833-2011.

Description

technical field [0001] The invention relates to the technical field of track facilities for sports grounds, in particular to a method for laying self-knotted particle-free environment-friendly plastic track. Background technique [0002] With the development of social economy, environmental protection problems are becoming more and more severe, and people have higher and higher requirements for the safety performance of sports facilities. At present, the domestic plastic track mostly adopts two-component polyurethane oily system, which belongs to (TDI+MDI)-MOCA-heavy metal ion catalyst system. There is free TDI (toluene diisocyanate) in the runway, and free TDI exceeding 0.5% will cause harm to the human body; the cross-linking agent MOCA is toxic and is a suspected carcinogen; heavy metal ions (mercury, lead, zinc) are toxic substances, Volatile organic solvents such as benzene, toluene, and xylene used in the laying process are also toxic substances, so the system does no...

AI Technical Summary

Problems solved by technology

However, this invention still uses a two-component system, which requires on-site weighing of ingredients in proportion and mixing evenly. This link is very error-prone, and once a mistake is made, it will lead to serious quality problems

In addition, the non-slip surface of the plastic runway in this invention still uses EPDM or PU particles, which are attached to the surface of the reinforcement layer by spraying or spraying. After a period of use, the surface particles are easy to degranulate, and the uneven distribution of particles causes surface friction. The coefficient is also uneven, which affects the performance of the athletes; the falling off of the particles also leads to the disappearance of the lane marking paint sprayed on the surface of the particles, which affects the use of the runway, and is very unsightly

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