【摘要】 采用聚氧化丙烯三醇,甲苯二异氰酸酯等为原料成功研制出弹性聚氨酯型混凝土道路嵌封胶。该嵌缝材料具有伸长率大、弹性高、与混凝土粘接力强、色彩可调、表干时间适宜,并可在缝内潮湿情况下施工等技术特点。该材料主要性能指标优于国内同类产品,目前已在广东省内数条混凝土道路上获得了推广应用并取得良好的技术效果。更多还原

【Abstract】 A inbuilt-enveloping glue was developed successfully by using the materials such as PPT,TDI. The glue has some technical characteristic such as great elongation,high elasticity,strong adhesive power with concrete,adjustable color,fitting surface-drying time,tolerably working on the condition of moist slot,and so on. Major properties of the glue are superior to the alike domestic products,so it was applied on a few concrete roads in Gangdong province and gained well technical effect.更多还原