| Based on the present research and developing trend of modified asphalt in our country and outsides,this paper analyses the polymer (SBS) modified asphalt will be broadly used in our highway engineering surely. This paper analyses SBS modified asphalt that improves quality in application of radices and asphalt mixture. It also analyses the mechanism of SBS modified asphalt.From the changes of the asphalt compose and structure of the fore-and-aft asphalt .Modification mechanism can be analyzed. The paper try out much measure, such as four component of asphalt, -NMR,IR, DSC and fluorescence micrography technique .Through this measure we can get a conclusion that SBS improve asphalt~s quality is because the stabilization and well-proportioned twine-structure is come into use. |
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