| 摘要: |
| 夏普计划已经走过了25年，它是沥青科技发展史上极为重要的里程碑.它打破了传统马歇尔设计中要求混合料低沥青含量的限制， |
| 关键词: 沥青 沥青混合料 马歇尔设计 夏普计划 超级路面设计 |
| DOI：10.3969/j.issn.1007 9629.2013.03.033 |
| 分类号: |
| 基金项目: |
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| On SHRP：Twenty Five Years Review and Outlook |
|
ZHU Han
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School of Civil Engineering, Tianjin University, Tianjin 300072, China
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| Abstract: |
| It has been 25 years since SHRP was born in 1987, which serves as an important milestone for asphalt technology development. Its progress includes well known PG based binder test series and gyration method in making HMA specimens, as well as the removal of limit on asphalt content imposed by Marshall design. The advancement of modified asphalt technology is another outcome made by SHRP. It should be pointed out that the coarse based aggregate gradation introduced in SHRP gives rise to diversity in designing HMA, and provides the new mechanism of force transfer within HMA by the contacts among coarse aggregates. But its effort to develop performance based HMA test method has met huge challenges and has not yet concluded the development. It is hoped that the endeavors to advance asphalt technology will continue in post SHRP era. |
| Key words: asphalt hot mix asphalt(HMA) Marshall design strategic highway research program(SHRP) superpave design |
