| 热拌沥青混合料密度的确定和测定方法 |
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| 引用本文： | 尹如军,伍石生.热拌沥青混合料密度的确定和测定方法[J].长安大学学报(自然科学版),2004,24(1):17-20. |
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| 作者姓名： | 尹如军 伍石生 |
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| 作者单位： | 1. 河南省交通公路工程局,河南,郑州,450052
2. 西安公路研究所,陕西,西安,710064 |
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| 摘 要： | 通过咨询沥青路面科技人员以及结合已有的成果,对比分析了确定沥青混合料密度的三种方法和两种测定方法,发现只要沥青混合料的初始空隙率不超过8%而最终空隙率不低于3%,现场密度指标可由实验室密度、理论最大密度或试验段密度的某一百分数来确定。结果表明沥青混合料的初始空隙率和最终空隙率都必须控制,建议测定密度时取芯法和核子密度仪法配合使用。
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| 关 键 词： | 道路工程 沥青混合料 空隙率 密度 测定方法 |
| 文章编号： | 1671-8879(2004)01-0017-04 |
| 修稿时间： | 2003年1月6日 |
Specifying density and its measuring methods of hot asphalt mixture |
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| YIN Ru-jun,WU Shi-sheng.Specifying density and its measuring methods of hot asphalt mixture[J].JOurnal of Chang’an University:Natural Science Edition,2004,24(1):17-20. |
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| Authors: | YIN Ru-jun WU Shi-sheng |
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| Affiliation: | YIN Ru-jun~1,WU Shi-sheng~2 |
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| Abstract: | Based on the information from conversations with pavement engineers and from on-going researches, this paper compared the existing three methods of specifying density and two measuring methods of asphalt mixtures. It is pointed that the in-site density can be obtained from laboratory, maximum theory density or in-site testing, if the initial void of asphalt mixture is less than 8% and its last void is more than 3%. The results indicate that both the initial void and the last void should be controlled, and the sampling core method and the nucleus density instrument should be used to measure the density together. |
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| Keywords: | road engineering asphalt mixture void density measuring method |
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