一、前言 桥面防水层过去是按照苏联沥青浸制麻布的方法施工,这个方法施工繁琐,高温操作有毒和易燃,劳动条件很差,同时由于沥青本身存在着热流冷脆,耐老化性差等缺点,也难以保证防水效果。从调查某大桥沥青麻布防水效果的情况,发现原有防水层已成豆碴状,不但不能防水,反而很易存水,这种现象说明沥青 First, the foreword Deck waterproof layer in the past is in accordance with the Soviet Union method of construction of asphalt impregnated linen, tedious construction of this method, toxic and flammable high-temperature operation, poor working conditions, and because of the existence of the asphalt itself, cold heat flow crisp, poor aging resistance Disadvantages, but also difficult to ensure waterproof effect. From the investigation of a bridge asphalt tarpaulins waterproofing effect and found that the original waterproof layer has become balmy, not only can not be waterproof, but very easy to keep water, this phenomenon shows that asphalt