Analysis of Adhesion Test of Steel Slag based on Microscopic Characteristics
In this paper, steel slag is selected as the road aggregate. Water boiling method, contact angle test and surface energy theory, scanning electron microscopy, mercury pressing test, X-ray fluorescence spectroscopy, thermal gravimetric and differential thermal test are used to show the adhesion and microscopic characteristics of steel slag. The results indicate that the good adhesion between steel slag and SBS modified asphalt is beneficial for improving the performance of asphalt concrete. There are a large number of small pores on the surface of steel slag, which is conducive to the embedding of asphalt, and forms mechanical locks with asphalt to enhance the binding force of the interface. Steel slag belongs to high alkalinity steel slag, which has high activity and has good adhesion performance with asphalt. The thermal stability of steel slag is good, which is conducive to the physical adsorption effect with asphalt.
万方数据
维普
