| SMA混合料体积参数的试验研究 |
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| 引用本文： | 高丹盈,李花歌.SMA混合料体积参数的试验研究[J].郑州大学学报(工学版),2010,31(4). |
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| 作者姓名： | 高丹盈 李花歌 |
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| 作者单位： | 1. 郑州大学,新型建材与结构研究中心,河南,郑州,450002
2. 开封大学,土木建筑工程学院,河南,开封,475004 |
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| 基金项目： | 国家自然科学基金资助项目(50678159) |
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| 摘 要： | 通过变化三种级配、两种纤维及每一纤维用量下至少变化三种油石比进行试验,研究级配组成、油石比及纤维沥青胶浆对SMA混合料体积参数的影响.结果表明,混合料的矿料级配对SMA混合料的体积参数影响显著.随4.75 mm筛孔通过率的增加,矿料间隙率VMA和空隙率VV均显著降低,而粗集料骨架间隙率VCAmix和沥青饱和度VFA则明显变大;随油石比的增加,由于沥青的填充作用,导致空隙率VV逐渐降低,沥青饱和度VFA增加.在级配一定情况下,纤维的"微集料"及填充作用,使SMA混合料的空隙率VV随纤维沥青胶浆含量的增大而减小,矿料间隙率VMA、沥青饱和度VFA及粗集料骨架间隙率VCAmix逐渐增大.
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| 关 键 词： | 道路工程 微集料 表干法 体积参数 矿料间隙率 |
A Laboratory Study on Volume Parameters of Stone Matrix Asphalt |
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| GAO Dan-ying
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LI Hua-ge.A Laboratory Study on Volume Parameters of Stone Matrix Asphalt[J].Journal of Zhengzhou University: Eng Sci,2010,31(4). |
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| Authors: | GAO Dan-ying LI Hua-ge |
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| Affiliation: | GAO Dan-ying1,LI Hua-ge2(1.Research Center of New Style Building Material & Structure,Zhengzhou University,Zhengzhou 450002,China,2.Civil Engineering & Architecture Academy,Kaifeng University,Kaifeng 475004,China) |
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| Abstract: | Through the tests of changing three kinds of aggregate grading and two kinds of fiber and more than three kinds of asphalt contents at every sort and quantity of fiber,the effect of aggregate grading,content of asphalt and the paste composed of fiber and asphalt on volume parameters of Stone Matrix Asphalt are analyzed.The results indicate that the aggregate grading has a remarkable influence on volume parameters of SMA.With the increase of the passing percent of 4.75mm sieve pore,the voids in mineral aggre... |
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| Keywords: | road engineering tiny aggregate dry surface method volume parameter voids in mineral aggregate |
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