基于微观试验的硅改沥青改性机理

Diatomite-modified-asphalt's mechanism based on microcosmic-test

采用红外光谱(IR)和扫描电镜(SEM)分析的方法,对硅藻土改性剂、不同掺量硅改沥青以及不同种类硅改沥青进行了试验。分析了硅藻土微观结构对硅改沥青性能的影响,研究了两者之间相互作用的机理。结果表明,硅藻土与沥青能够均匀混合,并且形成稳定的整体,具有良好的相容性,有助于改善沥青的技术性能,为硅改沥青的进一步应用提供了微观理论上的依据。

This paper carries out a test for diatomite-modified-asphalt with different content of diatomite and different kinds diatomite-modified-asphalt by IR and SEM to analyze the influence of diatomite＇s microstructure on the capability of diatomite-modified-asphalt. The analysis results can show the interactional mechanism between them. The diatomaceous earth can evenly mix with the asphalt, and forms the stable whole. It has the good compatibility to improve asphalt technical performance. This paper offers a microcosmicly academic gist for the further application of diatomite-modified-asphalt. 1 tab, 5 figs, 6 refs.