Brief introduction of self-knitting plastic runway
⇒ The new self-knitting non-granular plastic runway is designed on the basis of sports biomechanics and in strict accordance with national standards. It upgrades the runway to a professional "three-layer composite" structure. It also designs a unique closed-cell micro-bubble elastic sandwich, which can generate continuous kinetic energy in the process of sports and better protect injuries in sports. Fully up to the latest IAAF issued impact absorptivity requirements of 35% - 50%, for the domestic original field casting professional runway structure.The self-knitting runway is a field pouring and paving process. After paving, there are no joints and no particles to be removed, and the flatness of the foundation is adjusted twice. The runway is more flat, beautiful and durable.
Characteristics of self-knitting plastic runway
⇒ Excellent Weather Resistance: With unique anti-ultraviolet and anti-aging additives, the product has excellent anti-aging, anti-ultraviolet color change performance, bright and lasting color.
⇒ Excellent wear and slip resistance: the polyurethane surface formula with more abrasion resistance is used to replace EPDM particles as the anti-slip surface layer. The formula is sprayed with special additives and emery powder to form a more anti-slip and wear-resistant concave-convex surface, which not only retains the traditional characteristics of polyurethane runway material, such as weatherproof, aging resistance, but also gram. The traditional polyester runway is easy to thresh.
⇒ Excellent construction performance; the use of special mechanical spraying, simple construction, can greatly shorten the construction time.
⇒ After the removal of EPDM particles, the project cost is cheaper.
⇒ Environmental protection of materials, more stable quality.
⇒ Cement and asphalt foundations can be constructed.
Scope of application of self-knitting plastic runway
⇒ For international race track, national competition venue, professional sports school training and teaching venue, general school teaching venue, playground, professional stadium, multi-functional stadium.
Requirements for Foundation of Self-knitting Plastic Runway
The flatness and gradient of the foundation are measured on site. Taking the straight curve demarcation line of the runway as the datum line, marking a point every 3M along the transverse and longitudinal direction of the straight road, taking the center of the circle as the datum point, marking a point every 5 degrees with theodolite, marking a point every 3m, placing a 3M ruler between two adjacent points and measuring with a plug ruler, the maximum local depression is not more than 3mm as the qualified point and > 3mm as the unqualified point. The qualified rate of the whole site is 85%, 94% and 95% respectively. The horizontal gradient shall not exceed 1% if the axis elevation and the control datum elevation (relative) measured by the leveling instrument meets the requirements of the IAAF manual. Longitudinal gradient shall not be greater than 0.1%.
Construction Technology of Self-knitting Plastic Runway
⇒ Construction instructions: Full PU solid field pouring method. The base is laid with two-liquid PU about 10 mm, and the surface is laid with 3-5 mm runway granular layer after forming. This construction method has excellent elasticity and toughness. It meets the requirements of IAAF for the physical property planning of track and field venues. The runway surface layer of this construction method has impermeability. Under correct construction and regular proper maintenance, the product life can reach 16 years. Up.
⇒ Construction method description: the base is paved with a special paver for runway after mixing PU adhesive and rubber particles, and the surface is sprayed with runway topcoat. This construction method has low cost and short construction period, and requires special equipment to construct. The runway surface layer of this construction method has water permeability. Under the correct construction and regular proper maintenance, the product life can be achieved. It can last for more than eight years.
⇒ The construction method shows that the base course is paved with about 25% rubber particles (powder) for 10 mm, and the surface is attached with 3-5 mm runway granular layer after forming. This construction method meets the requirements of IAAF formal track and field physical property specification. The runway surface layer of this construction method has impermeability. Under the correct construction and regular proper maintenance, the product life can be achieved. It can last for more than 12 years.