【Key words】 Polyvinyl Chloride； Nano-CaCO3； Filling； Polymer modifier； Toughening； Dispersal；
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The polymer modifier can improve the performance of the paving asphalt on flexibility at low temperature and reversible elastic deformation.
聚合物用作改性剂可以提高沥青的软化点，改善沥青的低温柔韧性，提高延度，使沥青产生可逆的弹性变形。
Results The rheological property of the high filler content material is influenced by the sort and quantity of the rheological modifier and the polymer ingredient.
结果流变改性剂的种类和用量、树脂的配比都影响高填充量填充材料的流变性。
Methods The effects of the polymer ingredient and the sort and quantity of the rheological modifier on apparent viscosity are investigated.
方法对树脂配比、流变改性剂种类及用量对表观粘度的影响进行了分析。
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