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Effects of lead time and manufacturing methods applied for polymer-modified bitumen emulsion (PMBE) on microsurfacing performance
Road Materials and Pavement Design ( IF 3.4 ) Pub Date : 2021-08-13 , DOI: 10.1080/14680629.2021.1963818
Mahmood Reza Keymanesh 1 , Hassan Ziari 2 , Hossein Zalnezhad 1 , Mahdi Zalnezhad 2
Affiliation  

The modified microsurfacing mix design procedure for polymer-modified bitumen emulsion (PMBE) is introduced in this study under the influence of emulsifiers, lead time and through application of SBR latex polymer injection techniques, including the co-milling, soap pre-batching and post-blending procedures. The bitumen tests have shown that the type of emulsifier and the residence time of the bitumen emulsion in the colloidal mill, as well as the manufacturing process all affect the PMBE properties. Therefore, each type of emulsifier had different properties; especially the co-milling method of diluted bitumen emulsion had the highest performance in terms of physical and rheological tests due to the higher residence time of the bitumen emulsion in the colloidal mill which enhances bitumen properties. According to the results of the microsurfacing tests, the vertical deformation resistance, moisture damage resistance and bleeding potential were improved by 46.55%, 25.7% and 15.2%, respectively, through modifying in the co-milling method.



中文翻译:

聚合物改性沥青乳液 (PMBE) 的交货时间和制造方法对微表面处理性能的影响

本研究介绍了聚合物改性沥青乳液 (PMBE) 的改性微表面混合设计程序,该程序在乳化剂、交货时间的影响下以及通过应用 SBR 胶乳聚合物注射技术,包括共研磨、皂预配料和后处理- 混合程序。沥青测试表明,乳化剂的类型和沥青乳液在胶体磨中的停留时间以及制造工艺都会影响 PMBE 的性能。因此,每种类型的乳化剂具有不同的性质;特别是稀释沥青乳液的共磨方法在物理和流变测试方面具有最高的性能,因为沥青乳液在胶体磨中的停留时间更长,从而提高了沥青的性能。

更新日期:2021-08-13
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