水泥混凝土路面的填缝材料,过去多采用沥青,而后改用玛(?)脂,其使用性能较单纯沥青要好得多。近些年来又研究采用聚乙烯、聚氨酯等作填缝材料,其使用性能又比前者要好。但所有这些材料还都不能适应气温的变化,而且象聚乙烯、聚氨酯等材料价格高,贮存期短,也限制了各地的广泛采用。为了解决上述材料存在的问题,我们研制了一种新型填缝材料——ZJ填缝料,它的优点是:温度适应性强、模量小、回弹高、粘结好、具有耐久性,且价格合理,能作为产品成批供应。一、配制原理众所周知,沥青中加入橡胶,提高了软化点、 Cement concrete pavement materials, the past, the use of asphalt, and later changed to Mary (?) Grease, its performance is better than pure asphalt much better. In recent years, we have studied the use of polyethylene, polyurethane and other materials for caulking, and its performance is better than the former. But all of these materials are also not adapted to changes in temperature, and materials such as polyethylene and polyurethane are expensive and have short shelf-life, limiting their widespread adoption. In order to solve the problems of the above materials, we developed a new type of caulking material - ZJ sealant, which has the advantages of high temperature adaptability, small modulus, high rebound, good bonding, durability, And the price is reasonable, can be supplied in batches as a product. First, the preparation of the principle As we all know, asphalt rubber, increased softening point,