| 提高沥青-酸性集料抗水损害的试验研究 |
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| 引用本文： | 王抒音,周纯秀.提高沥青-酸性集料抗水损害的试验研究[J].中国公路学报,2003,16(1):6-9. |
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| 作者姓名： | 王抒音 周纯秀 |
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| 作者单位： | 哈尔滨工业大学,交通科学与工程学院,黑龙江,哈尔滨,150090 |
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| 基金项目： | 黑龙江省自然科学基金项目(E9721) |
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| 摘 要： | 针对酸性集料与沥青粘附性差、混合料水敏感性大的难题 ,根据配位键理论采用含铬外加剂处理酸性集料 ,显著提高沥青与酸性集料的粘附性。用强化的冻融劈裂试验评价混合料水损害 ,对比试验说明经过含铬外加剂处理后的酸性集料混合料劈裂强度比提高显著 ,长期抗水损害性能也较好。
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| 关 键 词： | 道路工程 水损害 冻融劈裂试验 酸性集料 含铬外加剂 |
| 文章编号： | 1001-7372(2003)01-0006-04 |
| 修稿时间： | 2002年2月21日 |
Investigation of improving asphalt-acidity aggregate in mixture to resist water damage |
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| WANG Shu yin,ZHOU Chun xiu.Investigation of improving asphalt-acidity aggregate in mixture to resist water damage[J].China Journal of Highway and Transport,2003,16(1):6-9. |
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| Authors: | WANG Shu yin ZHOU Chun xiu |
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| Abstract: | Acidity aggregate has poor bond strength with asphalt and also produce the problem of mixture's serious water sensitivity. In this paper, acidity aggregate was treated with the additive including chromium to improve its bond strength greatly between asphalt and aggregate.A improved freeze thaw split test was used to evaluate the mixture water sensitivity. The experiments indicated that mixture's split strength was improved markedly than before when the mixture treated with the additive including chromium and also its long term anti stripping property is fine. |
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| Keywords: | road engineering water damage freeze thaw split test acidity aggregate additive including chromium |
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