| 旧水泥砼路面沥青加铺层反射裂缝试验研究 |
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| 引用本文： | 苏新国,倪富健,赖用满.旧水泥砼路面沥青加铺层反射裂缝试验研究[J].重庆交通大学学报(自然科学版),2005,24(2):46-49,56. |
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| 作者姓名： | 苏新国 倪富健 赖用满 |
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| 作者单位： | 皖通高速公路股份有限公司,安徽合肥,230051;东南大学,交通学院,江苏南京,210096 |
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| 摘 要： | 利用AAPA对旧水泥砼路面沥青加铺层进行反射裂缝试验研究,分析了组成结构类型、集料级配、沥青、矿粉、纤维和橡胶粉对混合料抗反射裂缝能力的影响,结果表明,混合料的组成结构类型和沥青性质是影响混合料反射裂缝抵抗能力的主要因素,同时矿料4 75mm筛孔的通过率与混合料的疲劳寿命有良好的相关性,此外,合理确定粉油比和选用外加剂都是提高混合料疲劳寿命的重要手段.
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| 关 键 词： | 旧水泥砼路面 沥青加铺层 反射裂缝 沥青混合料 组成 |
| 文章编号： | 1001-716X(2005)02-0046-04 |
| 修稿时间： | 2004年3月10日 |
Experimental research on reflection cracking of asphalt overlayon old concrete pavement |
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| Abstract: | Experimental research on reflection cracking of asphalt overlay was carried out by means of AAPA(Automatic Asphalt Pavement Analyzer). The effect of composition structure type, aggregate gradation, asphalt, miner filler, fiber and crumb rubber on the ability of resisting reflective cracking was analyzed. The results show that composition structure type of mixture and asphalt property are main factors which affect the ability of resisting reflective cracking, simultaneously there are great correlation between passing of 4.75 millimetre sieve pore and fatigue life, in addition selecting miner filler-asphalt ratio and using additives rationally are significant ways to heighten fatigue life of asphalt mixture. |
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| Keywords: | old concrete pavement asphalt overlay reflective cracking asphalt mixture composition |
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