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一、质量标准 (一)SBS改性沥青防水卷材 SBS是一种合成橡胶,具有在热沥青中呈现低粘度的塑性,低温不呈橡胶性能的特性,是国际上广泛采用的沥青改性剂。SBS改性沥青是将呈白色、颗粒状的SBS橡胶加入道路沥青并在搅拌和研磨的作用下均匀混合制得。采用此改性沥青做涂盖料,与胎基、覆面材料组合制成的改性沥青卷材,称为SBS改性沥青防水卷材。 由于SBS属高聚物中的弹性体,所以执行现行《弹性体沥青防水卷材》(JC/T560—94)标准,SBS改性沥青防水卷材的规格、等级、标号、品种、标记及外观、物理性能必须符合上述标准的要求。标准的标号应为按10m~2标称质量划分的25号、35号和45
I. Quality Standards (1) SBS Modified Asphalt Waterproof Coil SBS is a synthetic rubber with the properties of low viscosity plasticity in hot asphalt and low temperature performance without rubber properties. It is widely used as an asphalt modifier in the world. . SBS modified bitumen is obtained by adding white, granular SBS rubber to road asphalt and uniformly mixing under the action of stirring and grinding. The modified bitumen made of the modified asphalt and the combination of the tire base and the cladding material is called SBS modified bitumen waterproof membrane. As SBS is an elastomer in the polymer, the current “Elastomeric Asphalt waterproofing membrane” (JC/T560-94) standard, SBS modified bitumen membrane, the specifications, grades, labels, varieties, marks and appearance Physical properties must meet the requirements of the above standards. The standard labels shall be No. 25, No. 35 and No. 45 divided by the nominal mass of 10m~2