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Problems to be aware of when laying a rubber runway

2019-10-17


(1) polyurethane plastic materials in the construction process is most afraid of water, paste in the initial curing before touching a drop of water will produce a large bubble, so construction workers in the high-temperature conditions should be prepared to towel sweat. Pave the rubber surface must grasp the weather conditions and to do a good job to prevent sudden showers of emergency measures. Lay rubber time to avoid the morning in the atmosphere and the ground when the humidity is large, even in the weather clear normal working days, generally in the morning after nine o'clock formally laid.

(2) The actual thickness of the rubber surface is from the bottom of the rubber to the center of the surface layer of rubber particles, generally from two aspects of control. First of all, through the standing mold for the thickness of the size of the pre-check, first of all, the grass-roots level of localized high out of the place to repair chopping or hammering for tamping low. If not much higher, can be used on a flat scraper with a clamp off the mold scraping slurry to ensure the thickness, the 11th Asian Games North Suburbs Competition Ground Plastic Runway main competition area to ensure the thickness of the error control for the positive difference, so the average thickness of more than 14MM.

(3) plastic runway after the rain does not accumulate water construction experience: A, in order to ensure flatness, paving span as large as possible, the main runway on the span of 3.66 meters (three road paving at the same time), non-competition area span is greater than 4 m. B, generally in the north and south semicircle after the rain is sure to have a partial accumulation of water phenomenon, especially high jump area semicircle is more serious. In order to ensure that the slope, the use of "turtleback" construction method, in order to facilitate drainage.

(4) to prevent the rubber surface after paving local blistering and shelling, for the grass-roots level of compactness should be strictly controlled to prevent the asphalt base layer of its own embedded extrusion is not solid, shelling and delamination, resulting in poor adhesion, surface vaporization, the rubber surface is pulled off. Grass-roots compactness is not enough places, you can use drill holes, filling rubber (rubber nails) method of reinforcement.

(5) in order to ensure the flatness, slope, mold strip nailed, with a level meter to simulate the correction, grass-roots level of individual high places, the first to be smoothed out, individual low places, fill in with rubber.

(6) by the diesel pollution and corrosion of the base part of the firm digging out, fill with glue.

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