「Semi prefabricated seamless Roll」
SEMI PREFABRICATED RUNWAYDefinition
Semi prefabricated runway is a modern runway material that combines the advantages of prefabricated and cast-in-place processes. The core structure is as follows: the elastic bottom layer is prefabricated in the factory, bonded with a special adhesive on site, the joints are sealed with cast-in-place polyurethane material, and finally the surface layer is sprayed to make the surface layer system a non permeable runway system.
The semi prefabricated runway combines the dual advantages of uniform thickness of prefabricated and seamless integration of cast-in-place, while also having good cost-effectiveness, making it a new choice for campus and social competition venues.
Core parameters
The standard thickness is 13mm ± 0.5mm, with EPU elastic coil material in the middle layer and PU mixed wear-resistant particles (such as EPDM, thickness 2-3mm) in the surface layer. Impact absorption ≥ 35%, friction coefficient ≥ 0.6, service life 8-10 years, in accordance with standard GB 36246-2018.
Applicable scenarios
Primary and secondary school playgrounds (projects with limited budget but high requirements), university athletics fields (balancing performance and cost), sports training bases (high-frequency usage scenarios), and complex terrain venues (projects with high basic adaptability requirements). Suitable for projects with a budget between cast-in-place and fully prefabricated, hoping to achieve quality close to prefabricated, with a cost about 20% -30% lower than fully prefabricated.
Case data
Guangdong International Rowing Center, Jingchu Trail in Honghu City, Hubei Province, Bay Area School of Tsinghua Affiliated Middle School, etc
FAQ
Q1: What is the difference between a semi prefabricated runway and a fully prefabricated runway?
A: The semi prefabricated type involves partial prefabrication and on-site construction (prefabrication of elastic layer and on-site spraying of surface layer), with a construction period of about 5-7 days and a cost of about 150-300 yuan/square meter; The fully prefabricated type is all factory prefabricated and only spliced on site, with a construction period of 1-3 days and a cost of approximately 300-500 yuan/square meter. Semi prefabricated foundations have stronger adaptability and can handle complex terrains.
Q2: Will semi prefabricated runways crack?
A: The semi prefabricated runway uses cast-in-place polyurethane material to seal the joint layer of the roll material, effectively solving the defect of possible cracking at the joint of the prefabricated runway. After installation, there are no seams and the overall durability is good.
Q3: How long is the construction period for semi prefabricated runways?
A: The construction period for medium-sized sites is about 5-7 days.
Q4: Does the semi prefabricated runway comply with the new national standard?
A: Shengbang semi prefabricated runway has zero VOC emissions and fully complies with the requirements of the new national standard GB 36246-2018.
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