Process diagram of water-based runway:
Site cleaning → bottom glue batching → mixing → paving → defoaming → curing → surface glue batching → mixing → paving → defoaming → particle spreading → rubber particle recycling → glue rolling → measuring and marking → testing point line → completion
Construction process of silicon PU court:
1、 Foundation treatment
1. Cement concrete foundation:
(1) Basic requirements:
Firm and flat (flatness requirement: the error of a 3m ruler is not more than 3mm), with a certain drainage slope (generally not more than 40/00 horizontally, not more than 20/00 vertically, water discharge), the strength of which reaches the C25 strength of building concrete standard, and the water retention curing is not less than 7 days after pouring, The overall curing period shall not be less than 28 days (the curing time of cement shall be such that the white powder produced during the curing process of cement can be completely separated from the foundation surface). After the new cement foundation is poured, the reasonable temperature expansion joint shall be cut. In principle, the temperature joint shall not be greater than 6x10m as a block. If the temperature joint is cut between the blocks poured by blocks, the width of the cut temperature joint shall be 6~8mm and the depth shall not be less than 30mm (the thermal expansion and contraction of the foundation can be concentrated in the temperature joint to change without causing cracks in other parts of the foundation).
The basketball court is a solid rectangular surface, free of obstacles. For the major official matches of FIBA, the measurement of the court should start from the inner edge of the boundary. For all other competitions, the appropriate department of FIBA has the right to approve the existing courts within the following dimensions: the length is reduced by 4 meters, and the width is reduced by 2 meters, as long as their changes are proportional to each other. Ceiling or low barrier products shall be at least 7m high. The lighting of the stadium should be uniform and the luminosity should be sufficient. The placement of lighting equipment shall not hinder the vision of team members. The size of all new stadiums shall be consistent with the requirements of the major official competitions of the FIBA: 28 meters long and 15 meters wide.
Line: 0.05m (5cm) wide
（1） Boundary: The boundary of the stadium shall be at least 2 meters away from the spectators, billboards or any other obstacles. The boundary of the long side of the court is called the sideline, and the boundary of the short side is called the end line.
（2） Midline: Draw a line parallel to the end line from the midpoint of the side line; The central line shall extend 0.15 meters (15 cm) beyond the sidelines on both sides.
（3） Basketball court free throw line, restricted area and free throw area: 1. The free throw line should be parallel to the end line, and its outer edge should be 5.80 meters away from the inner edge of the end line; This line is 3.60 meters long. Its midpoint must fall on the imaginary line connecting the midpoint of the two end lines. 2. The ground area formed by drawing two lines from both ends of the free throw line to 3 meters from the midpoint of the end line (both measured from the outer edge) is called the restricted area. If it is colored inside the restricted area, its color must be the same as that inside the middle circle. 3. The penalty area is the restricted area plus a semicircle drawn outside the restricted area with the center of the penalty line as the center and a radius of 1.80 meters. The semicircle in the restricted area shall be drawn as a dotted line. 4. The location areas on both sides of the penalty area are for players to use during penalty shooting.
The drawing is as follows:
(1) One line is 1.75 meters away from the inner edge of the end line and measured along the sidelines on both sides of the penalty area.
(2) The width of one location area is 0.85m (85cm), and it is connected with the beginning of the neutral area.
(3) The width of the neutral area is 0 40m (40cm), and use the same color as other lines.
(4) The second location area is adjacent to the neutral area, with a width of 0.85m (85cm).
(5) The three location area is adjacent to the two location area, with a width of 0.85m (85cm).
(6) All lines used to draw these location areas have a length of 0 10 meters (10 cm), and perpendicular to the outside of the penalty area sideline.
（4） Middle circle: The middle circle should be drawn in the center of the court, with a radius of 1.80 meters, measured from the outer edge of the circle. If it is colored inside the middle circle, its color must be the same as that inside the restricted area.
（5） Basketball court area 3 points shooting area: 1. 1.25 meters away from the sideline, two parallel lines from the end line; 2. An arc (semicircle) with a radius of 6.25m (measured to the outer edge of the arc) intersects two parallel lines; 3. The center of the arc should be at the intersection of the center vertical line of the other basket and the ground. The distance from the center of the circle to the midpoint along the inside of the end line is 1.575m. Note: If the width of the court is less than 15m, the arc is still drawn according to the above 6.25m radius.
