Waxes can also be used in asphalt modification. In this article, Sainuo will show you the application of oxidized polyethylene wax and polyethylene wax in asphalt modification.

1. Application of ope wax in asphalt modification
In highway construction, asphalt pavement has good driving comfort and excellent service performance, and is fast in construction and convenient in maintenance. Therefore, asphalt material has become one of the most important building materials of highway pavement.

Oxidized polyethylene wax has excellent cold resistance, heat resistance and wear resistance, good chemical stability and good compatibility with asphalt. As an asphalt modifier, it can quickly combine with asphalt and improve asphalt components, without worrying about precipitation from asphalt when the state changes. It can quickly and uniformly melt and disperse during asphalt mixing, improve the viscosity of asphalt, and improve the ability of asphalt to resist flow, It can significantly improve the rutting resistance of asphalt mixture and meet other performance requirements of asphalt mixture. Compared with the original asphalt, the asphalt modified with oxidized polyethylene wax has obvious improvement in high temperature performance, elongation, stretch, elasticity and compatibility with the mixture; It can effectively improve the storage stability of modified asphalt, reduce segregation, maximize the low-temperature ductility of modified asphalt, improve high-temperature rutting resistance and low-temperature brittleness resistance, and is suitable for use in high-temperature and low-temperature areas.

The experimental data shows that when the content of oxidized polyethylene wax modifier increases from 0 to 20%, the softening point of asphalt increases, the penetration decreases, the low-temperature ductility increases, the scalability becomes better, and the elastic recovery is improved. The effect is very significant, and the high and low temperature properties are significantly improved.
2. Application of polyethylene wax in asphalt modification
The addition of polyethylene wax in asphalt modification can significantly improve the high temperature performance of asphalt materials, but it has a certain degree of adverse effect on the low temperature performance of asphalt. At the same time, it can significantly reduce the viscosity of asphalt, improve the rheological properties of asphalt, and has a good effect on reducing the asphalt mixing temperature and improving the asphalt mixing construction under low temperature conditions.

(1) In the experiment of the influence of the amount of polyethylene wax on the basic properties of different base asphalt, the softening point of asphalt materials increases gradually with the increase of the amount of polyethylene wax, which indicates that the addition of polyethylene wax can significantly improve the high-temperature performance of asphalt materials; The penetration and ductility decreased gradually, which indicated that the addition of polyethylene wax would adversely affect the temperature sensitivity and low-temperature performance of asphalt materials. Therefore, attention should be paid to its impact on the low-temperature performance of asphalt materials in the application process, and reasonable dosage should be adopted.
(2) The addition of polyethylene wax can obviously modify the internal components of asphalt materials, which is also the mechanism that it can significantly reduce the viscosity of asphalt.
Qingdao Sainuo Chemical Co.,Ltd. We are manufacturer for PE wax, PP wax, OPE wax, EVA wax, PEMA, EBS, Zinc/Calcium Stearate…. Our products have passed the REACH, ROHS, PAHS, FDA testing.
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