基于红外光谱仪的新旧沥青融合程度量化表征

为了对热再生中新旧沥青融合的程度进行定量分析,采用傅里叶红外光谱分析仪(fourier transform infrared,FTIR)对废旧沥青路面材料(recycle asphalt pavement,RAP)热再生过程中新旧沥青的融合程度进行研究.根据苯乙烯丁二烯嵌段共聚物(styrene-butadiene b...

Quantitative Characterization of Fusion Degree of New and Old Asphalt based on Infrared Spectrometer

In order to quantitatively analyze the degree of fusion of old and new asphalt in thermal regeneration, Fourier Transform Infrared spectroscopy (FTIR) was used to analyze the fusion degree of recycled asphalt pavement (RAP) to study the degree of fusion of old and new asphalt during thermal regeneration. According to the different infrared characteristic peaks of Styreneic-Block Copolymers (SBS) and base asphalt, using SBS as asphalt tracer, a method for quantitative analysis of the degree of fusion between old and new asphalt was proposed based on the layered solution method. The effect of mixing temperature, mixing time and lignin fiber on the fusion degree of new and old asphalt in the thermal regeneration process was studied by this method. The results show that with the increase of mixing temperature and mixing time, the degree of fusion between old and new asphalt also increases, and the addition of lignin fiber also improves the degree of fusion between old and new asphalt.