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水泥混凝土路面接缝的密封处理,最早可追溯到1906年。当时,人们简单地将加热的沥青油膏直接灌入接缝内进行填塞。到20世纪60至70年代,人们才开始改进接缝材料和技术,对接缝密封从过去的简单“填缝”发展到防水,并要求密封材料的防水能力适应路面的环境变化,从而能长期有效地保护水泥混凝土路面。在我国,路面接缝密封差的主要原因是使用落后的传统有机密封材料,即沥青,聚硫和聚氨酯等。有机密封材料不仅不能满足水泥混凝土路面热胀冷缩的要求,而且耐久性差,要求频繁、重
Sealing of cement concrete pavement seams, dating back to 1906. At that time, people simply filled the heated asphalt ointment into the joint to fill. By the 1960s and 1970s, people began to improve the joint materials and technology, the development of seam seals from simple “caulking” to waterproofing, and the waterproofing ability of sealing materials to adapt to the environmental changes of pavement Long-term and effective protection of concrete pavement. In China, the main reason for the poor sealing of pavement joints is the use of backward traditional organic sealing materials, namely asphalt, polysulfide and polyurethane. Organic sealing material not only can not meet the requirements of thermal expansion and contraction of cement concrete pavement, and durability is poor, frequent, heavy