Rubber sheet surface, track and field venues how to paved?
The rubber coil is processed and shaped in the factory. The general size is 1.22mX20m, and it is packaged into a roll. It is basically a runway, and the rubber roll and the asphalt concrete base layer are made of adhesive and firmly bonded.
The construction method is to first check the quality of the grass-roots, especially the flatness, whether there is looseness in the thickened area and the asphalt concrete surface. Make plans to take remedial measures. Such as putty, washing plan, sand filling and so on.
After processing at the grassroots level, the venue race track line will be released and each special competition will be in a thickened zone.
The rubber sheet pavement should be started from the straight section of the first runway. Within the area of ​​the pavement sheet, the adhesive should be brushed first, and with the adhesive, the coils should be lightly rolled and placed smoothly after the coil is unrolled. Light small mill, rolling again, grinding weight 200kg ~ 500kg. After pressing, put heavy objects around the coil, and statically compact it. The weights are replaced by concrete blocks or firebricks. If firebricks are used, they can be divided into groups of two, with a spacing of 100 cm, and each roll. The joints of wood are not less than 3 points.
The joints of the rubber coils should be measured with a linear ruler, draw a horizontal line perpendicular to the runway line, and use a slicing knife to cut the straight line. The adhesive should be brushed between the two coils. Can not be docked directly, to prevent the membrane from processing due to non-vertical phenomenon, resulting in hemispherical joints or cracking.
The entire paving order is: first padded zone paving, first runway paving, second runway paving, if the construction conditions are good, if the construction conditions are good, the construction force is sufficient, and the distance between the first runway and the second runway is The distance between two rolls can be performed at the same time before and after, and the effect is better. Continue to install the third, fourth, etc. runway, until the whole field is paved, then paved two semi-circular areas.
The grassroots is not even, how to paved the rubber membrane surface layer?
The rubber coils are processed and manufactured by the factory, and are cast and extruded at one time. Especially in terms of thickness, the rubber coils are absolutely the same. Such materials, in the paving runway, are particularly stringent for the asphalt concrete base, if the flatness is guaranteed No, the surface of the pavement, not only can not guarantee to meet the quality standards. Even due to the unevenness of the grass-roots level, it may cause the rubber membranes to be loosely bonded, and local hollowing, breakage, etc. may also occur. To prevent this from happening, a comprehensive inspection and treatment of the asphalt surface should be carried out before construction.
The current inspection method, in addition to measurement and inspection, can also be used 3m ruler, with the feeler gauge, the whole field detection, for the excessive area, draw a range with a colored pen, waiting for processing. There is also a method of spreading water across the entire site. In places where there is a lot of water, a watermark is used as a marker, and a range is drawn with a colored stroke to be processed.
The method of treatment: generally adopts the method of scraping putty, using chemical adhesive or tannin glue, blending cement or talcum powder, mixing and synthesizing thin paste, transporting it to the scene, pour it on the low mark with colored mark, and use iron trowel Squeeze and wait until dry, about 24h, can be sprinkled water method, and then check again, if there is excessive standards, you can carry out a putty leveling method, if the inspection is qualified, you can play the whole line, do the pavement work.
This cordless tire inflator in-built 2000ma lithium ion battery. It's small, ergonomic, and runs from 0-150 PSI. It also has different nozzles.This tire inflator is lightweight, extremely portable, and requires little storage space. The battery charge lasts long enough to inflate several tires in one sitting.
Air Pump For Car Tires,Car Tire Inflator,Portable Tire Inflator,Car Tyre Inflator
SHENZHEN SMARTNEWO TECHNOLOGY CO,. LTD , https://www.newopump.com