灰色关联理论在泡沫温拌沥青生产关键参数优选中的应用研究

The Optimization Studies of Foam Warm Mix Asphalt Production Critical Parameter Based on Gray Relative Theory

为了更好地对沥青发泡效果进行控制,保证泡沫沥青的生产质量,优选出最关键的影响因素及最佳用量显得十分必要。首先对道路石油沥青和SBS改性沥青在不同的沥青加热温度、发泡用水量、发泡用水温度条件下,分别进行泡沫温拌试验,得出与之相对应的最大膨胀率、半衰期的试验数据。分析出发泡用水量为最重要的影响因素。然后,通过灰色关联理论对三种不同的影响因素与泡沫沥青的最大膨胀率、半衰期进行关联程度的分析,验证了之前对数据的分析结果。最终得出,泡沫沥青生产最关键的影响因素为发泡用水量,道路石油沥青最佳用水量在2%左右,SBS改性沥青最佳用水量在3%左右。

First of all,on the condition of the different asphalt heating temperature,foaming water consumption,foaming water temperature,the foaming test for the asphalt and the SBS modified asphalt were carried out respectively,then the test data were obtained which are corresponding to the maximum expansion ratio and the half-life period. The most important influence factors of water consumption were analyzed. After that,by means of the gray relative theory,the degree of correlation between three important factors and the maximum expansion ratio,the half-life period were analyzed. Finally it is concluded that the key influencing factors of foam asphalt production is water consumption. Asphalt optimum water consumption is about 2%,the SBS modified asphalt optimal water consumption is about 3%.