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《Highway Engineering》 2017-04
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Preparation process optimization of qingchuan rock modified asphalt

CHEN Liping;YAO Xiaoguang;CHEN Weiping;Hunan Communications Research Instiute;School of Geographic Information and Tourishm,Chuzhou University;Hunan Huagang Planning & design Research Institute Co.,Ltd.;  
Domestic qingchuan rock asphalt could be a kind of modifier of modified asphalt. In order to further study the process of qingchuan rock modified asphalt,the 70~# matrix asphalt was selected as object of this paper. Then based on the merits of Different contents of qingchuan rock modified asphalt,the optimal content was determined. And the preparation process of qingchuan rock modified asphalt in the optimal content was optimized on the basis of orthogonal text. The results indicate that adding7. 5% qingchuan rock asphalt can make performance of qingchuan rock modified asphalt in optimal performance. And in preparation process of qingchuan rock modified asphalt,shearing time should be consider enough. In order to make qingchuan rock modified asphalt achieve the best overall performance,the development temperature,development time,shearing temperature,shearing time should control at 160 ℃,60 min,180 ℃,60 min respectively.
【CateGory Index】: U414
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