OALib Journal期刊
两种测量泡沫沥青黏度方法的对比
DOI: 10.3969/j.issn.1674-0696.2015.01.10
Keywords: 道路工程 ,泡沫沥青 ,旋转黏度 ,对比试验 ,剪切力 ,沥青泡 ,roadengineering ,foamedasphalt ,viscosity ,contrastexperiment ,shearstress ,bubblesofasphalt
Abstract:
:？使用布氏黏度计与改进的布氏黏度计进行测量泡沫沥青黏度试验，选择70#道路石油沥青与SBS改性沥青制备泡沫沥青，对两种泡沫沥青的旋转黏度测量方法进行对比研究。结果表明：测量泡沫沥青时须考虑沥青泡对转子剪切力的影响，70#道路石油泡沫沥青产生的沥青泡对其旋转黏度影响较大，其改进的旋转黏度小于70#道路石油沥青的旋转黏度，未改进的旋转黏度大于70#道路石油沥青的旋转黏度；SBS改性泡沫沥青由于其旋转黏度较大，产生的规则椭球形沥青泡，对旋转黏度的测量影响不大，其改进的旋转黏度与未改进的旋转黏度均小于SBS沥青的旋转黏度。为了更加准确测得泡沫沥青的旋转黏度，建议对布氏旋转黏度计进行改进，增大盛样筒的口径来避免沥青泡对转子剪切力的影响。
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