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一、试验目的我国防水嵌缝材料的生产和使用,目前以石油沥青基和煤焦油基油膏较为普遍,它具有原材料充足,成本较低,生产工艺简单,施工方便等优点。十几年来的实践证明,凡性能符合部标准《JC207—76建筑防水沥青嵌缝油膏》规定指标的油膏,使用于屋面嵌缝防水,都能满足防水的要求。但是用于外墙板嵌缝防水效果如何;尚缺乏经验。为了解决这个问题,我
First, the purpose of testing China’s production and use of waterproof caulking materials, the current oil-based asphalt and coal tar-based ointment is more common, it has sufficient raw materials, low cost, simple production process, easy construction and so on. More than ten years of practice has proved that where the performance of the Ministry of Standards “JC207-76 building waterproof asphalt caulking ointment,” the specifications of the ointment, used in roofing seam waterproof, can meet the requirements of waterproof. However, how is the waterproof effect used for the caulking of exterior wall panels; it is still inexperienced. To solve this problem, I