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A process for the delay of the propagation of cracks in asphalt concrete ceilings and prefabricated asphalt film.
A process for the delay of the propagation of cracks in asphalt concrete ceilings and prefabricated asphalt film.
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机译：延迟裂纹在沥青混凝土天花板和预制沥青薄膜中传播的过程。
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摘要
A method of rehabilitation of roads damaged by reflective cracking is described. The method comprises the welding onto the damaged pavement a prefabricated sheet, having a thickness of at least 0.5 mm, which consists of an upper and lower layer of polymer-modified bitumen. The two layers are separated by a stress relieving reinforced elastic membrane which is characterized by an elongation of between 30% to 70% and tensile strength of at least 5 kg/cm. The polymer used to modify the bitumen is selected from a thermoplastic rubber, such as styrene-butadiene-styrene, polypropylene and polyethylene and the preferred amount is in the range of between 4% to 10% by weight of the bitumen. The welding of the prefabricated sheet onto the damaged road is preferably carried out by torching out. The preferred thickness of the prefabricated sheet is in the range of between 3 to 5 mm.
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机译：描述了一种修复由反射裂缝损坏的道路的方法。该方法包括将厚度至少为0.5mm的预制板焊接到受损的路面上，该预制板由聚合物改性沥青的上层和下层组成。这两层由缓解应力的增强弹性膜分开，该膜的伸长率在30％至70％之间，拉伸强度至少为5 kg / cm。用于改性沥青的聚合物选自热塑性橡胶，例如苯乙烯-丁二烯-苯乙烯，聚丙烯和聚乙烯，优选的量为沥青重量的4％至10％。预制板在受损道路上的焊接优选通过割炬进行。预制板的优选厚度在3至5mm的范围内。
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