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Study on Swelling Process in Preparation of Bitumen of Asphalt Composition Containing Scrap Crumb Rubber and SBS Polymer
Author(s): 
Pages: 36-40
Year: Issue:  1
Journal: Petroleum Asphalt

Keyword:  废胶粉复合改性沥青溶胀工艺针入度比值法;
Abstract: 以韩国进口SK-70号为基质沥青,废胶粉和SBS为改性剂,糠醛抽出油和基质沥青为溶胀剂,制备废胶粉/SBS复合改性沥青.制备工艺中,溶胀工艺对改性沥青性质的影响尤为关键.通过正交试验,讨论溶胀工艺中溶胀温度、溶胀时间、溶胶比和软组份(糠醛抽出油)掺量对改性沥青性质的影响.基于沥青常规指标试验,利用针入度比值法(用于客观评价同批次不同配比的试样性质差异及沥青性质变化趋势),分析改性沥青性质变化趋势以...
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