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  Why EPDM track or Spray coat track do not bubble ? In the market, there are EPDM track, spray coat track,sandwich track, Full PU track, and prefabricated track . It sepereted by permeable and non-permeable track,EPDM track and Spray coat track belong to permeable track,sandwich track, full pu track and prefabricated track belong to non-permeable track. There are three reasons for rubber track bubbles : 1)The subbase problem; Regarding to Cement subbase, without waterproof layer When the cement foundation construct, or the cement was not maintained for 28 days after the completion of the cement, or the new cement foundation was maintained for 28 days but before the rubber track construction,it dont pickled （ by OXALIC ACID ） . These will cause blistering on the rubber tartan track.Regarding to AC (Asphalt) subbase, the asphalt was not compacted during construction. After the completion of the athletic track, the athletic track delamination and blistering, and the excavated rubber tr

  The synthetic running   track of the stadium has a large area, and the rainwater from the surrounding auditorium also flows into the venue. The venue must be used as soon as possible after the rain. The IAAF stipulates: "When the track and field ground is completely submerged, drain water for 20 minutes. Here The water depth of the ground area at any location shall not exceed the depth of the ground structure of the track and field". Site drainage can be a combination of surface runoff drainage and underground infiltration. If only ground runoff is used for drainage, the site is required to be flat and the flooding slope is very uniform, which is difficult for large-area football fields and field games. It is impossible to discharge by water seepage alone, because the water seepage capacity of the site is related to the site structure itself. Even if the water seepage is good, its water seepage capacity will become worse and worse as the service life increases. In addition