| 沥青粘结层抗剪强度试验探析 |
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| 引用本文： | 侯航舰.沥青粘结层抗剪强度试验探析[J].郑州大学学报(工学版),2006,27(3):38-42. |
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| 作者姓名： | 侯航舰 |
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| 作者单位： | 同济大学交通运输工程学院,上海,200092 |
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| 基金项目： | 陕西省自然科学基金资助项目(200511061127) |
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| 摘 要： | 通过自制的抗剪试验卡具,在设定的剪切温度条件下,以一定的剪切速率进行抗剪强度试验,对比改性沥青、改性乳化沥青、乳化沥青、粘层油乳化沥青4种不同沥青粘结层的抗剪强度,比较水泥混凝土、水泥稳定碎石、石灰粉煤灰稳定碎石3种常用基底材料对粘结层抗剪强度的影响,结果表明:基底材料强度越高,粘结材料用量适当,层间粘结效果就越好.结合造价节省和施工方便的因素,推荐在高速公路中优先采用乳化沥青下封层.
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| 关 键 词： | 乳化沥青 下封层 抗剪强度 沥青用量 基底材料 粘结力 |
| 文章编号： | 1671-6833(2006)03-0038-04 |
| 修稿时间： | 2006年4月18日 |
An Analysis of the Experiments on the Shearing Strength of Asphalt Binding Course |
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| HOU Hang-jian.An Analysis of the Experiments on the Shearing Strength of Asphalt Binding Course[J].Journal of Zhengzhou University: Eng Sci,2006,27(3):38-42. |
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| Authors: | HOU Hang-jian |
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| Abstract: | At a given shearing temperature,shearing tests are conducted with a self-made shearing test fixture at a given shearing speed.In the tests,the shearing strength of four kinds of asphalt binding courses is compared,namely modified asphalt,modified emulsified asphalt,emulsified asphalt and bonding emulsified asphalt.In addition,the influences of three common base materials-cement concrete,cement-stabilized macadam and lime-flyash-stablized macadam-on the shearing strength of binding course are also compared.Through the tests,the conclusion is drawn that if using the right amount of binding materials,the higher the intensity of the base material,the better the binding of different courses.In addition,emulsified asphalt undersealing course is comparatively cheap and convenient for construction.Therefore,emulsified asphalt undersealing course is recommended for building expressways. |
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| Keywords: | emulsified asphalt undersealing course shearing strength amount of asphalt base material binding strength |
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