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| Research on the Application of Anti-stripping Agents in High Elevation Cold Areas |
| LI Zhi-wei , DING Hao |
| CCCC Fourth Highway Engineering Co. Ltd, Beijing 100025，China |
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Abstract Research purposes: The tests are done for selection of the anti-stripping agent type and weight ratio of anti-stripping agent with asphalt so as to decide applying which kind of anti-stripping agent and seeking the most optimum blend ratio of anti-stripping agent for the purposes of applying the acidic stone in asphalt concrete pavement in high elevation cold area in Qinghai which is rich in acidic stone and making its adhesive with asphalt meeting the requirements.
Research conclusions : It is decided to use type A and B anti-stripping agents after doing the tests. When the blend ratio is 0. 4%，the adhesive of acidic stone with asphalt is the best, which can improve the asphalt concrete soil's capacity against water and stability at high temperature. The result of test in experimental section shows all property indexes satisfy the requirements.
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Received: 20 March 2008
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2008, Vol. 25 
