| 沥青混合料理论最大相对密度试验方法研究 |
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| 引用本文： | 汪正兴,王志海,刘增宏.沥青混合料理论最大相对密度试验方法研究[J].中国水利水电科学研究院学报,2015(4):317-320. |
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| 作者姓名： | 汪正兴 王志海 刘增宏 |
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| 作者单位： | 中国水利水电科学研究院北京中水科海利工程技术有限公司, 北京100038;北京市南水北调大宁管理处, 北京102442;中国水利水电科学研究院北京中水科海利工程技术有限公司, 北京100038 |
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| 摘 要： | 沥青混合料的理论最大相对密度是沥青混凝土的一个重要参数,因而其测试方法的准确性也尤其重要。现行试验规程中给出了三种用于测试沥青混合料理论最大相对密度的方法,测试方法并不统一。本文分别采用这3种不同试验方法对同一沥青混合料样品进行测试比较,分析了各种试验方法的不足之处。同时还采用3组不同吸水率的集料研究了集料吸水率对各种测试方法的影响。通过对比试验揭示了不同试验方法的对试验结果的影响,最后对三种试验方法提出了建议。
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| 关 键 词： | 沥青混合料 理论最大相对密度 孔隙率 |
| 收稿时间： | 2014/11/25 0:00:00 |
Research of test method for theoretic maximum specific gravity of asphalt concrete |
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| WANG Zhengxing,WANG Zhihai and LIU Zenghong.Research of test method for theoretic maximum specific gravity of asphalt concrete[J].Journal of China Institute of Water Resources and Hydropower Research,2015(4):317-320. |
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| Authors: | WANG Zhengxing WANG Zhihai and LIU Zenghong |
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| Affiliation: | Beijing IWHRKHL Co.Ltd., IWHR, Beijing 100038, China;Beijing South-north Water Diversion Project's Office of Daning, Beijing 102442, China;Beijing IWHRKHL Co.Ltd., IWHR, Beijing 100038, China |
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| Abstract: | The theoretic maximum specific gravity is an important index of asphalt concrete, so the test method is also very important. The current test standard has given 3 kinds of methods for testing the theoretical maximum specific gravity of asphalt concrete. In this article, the theoretic maximum specific gravity of asphalt concrete was tested by different methods applied in the current test standard, and the disadvantages of each method are discussed. At the same time, 3 kinds of aggregates with different water absorption have been used to study how the water absorption affects the results. The influence of different test methods is analyzed and suggestions are given. |
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| Keywords: | Asphalt concrete Theoretic maximum specific gravity Porosity |
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