Basic requirements: a hybrid of traditional plastic track on the basis of higher, general modified asphalt concrete as a hybrid of traditional plastic runway base surface. Because of mixed traditional plastic track surface wear layer is the use of EPDM rubber granules, EPDM rubber particles which are of rubber, badminton courts plastic runway, and polyurethane elastomer layer does not belong to the same type of performance products, so the use of more serious threshing, coupled with intensive The particles bring some difficulties to clean up plastic track surface. Polyurethane plastic runway gravel layer (1) gravel layer thickness of 100-120MM, its particle diameter is generally in the range 25-65MM, plastic runway, but do not exceed 2/3 of the thickness of the cushion, using hard and tough, wear-resistant crushed granite uniform intensity or lime, soft or not mixed with stones. Gravel should be more water chestnut shape blocks, clean soilless, excluding weathering powder and other impurities. Time (2) beach gravel strip virtual height should avoid numerous experiences of finding up, virtual height compaction factor multiplied by the design thickness 1.30-1.40, already paving flat gravel, plastic track laying, the size of the particles to be uniform thickness to be consistent, should be cut off traffic before rolling, to keep clean; (3) after the first slow-fast rolling, rolling type to the first light after the principle of rolling wheel tracks should overlap, since the beginning of the street move to the center, the street should be carefully repeated rolling, avoid crowded stone outward movement, before rolling to the sprinkler about 3-4KG / square, first with 6-8 tons of gravel rolling machine rolling stable, school plastic runway The squeezing 2-3 times were Zhaobu. When finished, switch to 10-12 tons Rolling machines continue rolling, with the press with the sprinkler, water no more than every 1KG / square. To use medium-sized rolling machine stable gravel shall be used "to reduce the rolling speed," ahead of watering and other measures to prevent excessive angular gravel damage, if found excessive formation of gravel and stone chips rounded, signifies "rolling over" should be dug through crushed gravel section, screen out small stone, adding new stone with angular, re-rolling. In the rolling process should always check and found uneven phenomenon, the height should be picking pine leveling, arrived at the expense of loose gravel surface should add the same broken 石补平 then compacted; (4) the larger gravel particles The surface of the gap is too large, it can sew holes and spread a layer of stone inlay, having a particle size may be 5-20MM. Flat seam stone should insert as gravel gap, should form a separate layer, rolling to the gravel and inserts sewn tightly bound material without rolling up printed compacted density of 2.2 t / sq; plastic runway | Kay US Sports | pu plastic runway Ltd. provided by the Dongguan City Camry sports facilities. Plastic runway | Camry Sports | pu plastic runway Dongguan City Camry Sports Facilities Engineering Co., Ltd. (www.kmtyss.com) this year introduced a new upgrade, the above picture is for reference only, please call the contact picture on this page or telephone obtain the latest information, contact: Mr. Chen.