论文部分内容阅读
为确定高弹性改性沥青混合料的拌和与压实温度,首先基于国外的研究成果选定拌和与压实温度对应的粘度分别为(0.275±0.03)Pa.s和(0.55±0.04)Pa.s,然后通过不同温度下的压实试验与体积参数分析获得最佳的压实温度,再依据该压实温度下粘度与剪切速率的关系确定适宜的剪切速率,最后根据粘度与温度和剪切速率的关系确定拌和温度。此方法确定的拌和与压实温度比较符合实际工程的现场施工温度,表明该方法是可行与合理的。
In order to determine the mixing and compaction temperature of highly elastic modified asphalt mixture, the viscosity corresponding to the mixing and compaction temperature was selected as (0.275 ± 0.03) Pa.s and (0.55 ± 0.04) Pa respectively based on the overseas research results. s, and then through the compaction test at different temperatures and the volume parameter analysis to obtain the best compaction temperature, and then based on the compaction temperature and shear rate of the relationship between the viscosity to determine the appropriate shear rate, and finally according to the viscosity and temperature and The relationship between shear rates determines the mixing temperature. This method to determine the mixing and compaction temperature more in line with the actual construction site temperature, indicating that the method is feasible and reasonable.