[1]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(04):1-5.[doi:10.3969/j.issn.1671-6833.2010.04.001]
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SMA混合料体积参数的试验研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
31卷
期数:
2010年04期
页码:
1-5
栏目:
出版日期:
2010-04-01

文章信息/Info

作者:
高丹盈李花歌.
郑州大学,新型建材与结构研究中心,河南,郑州,450002, 开封大学,土木建筑工程学院,河南,开封,475004
关键词:
道路工程 微集料 表干法 体积参数 矿料间隙率
DOI:
10.3969/j.issn.1671-6833.2010.04.001
摘要:
通过变化三种级配、两种纤维及每一纤雏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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更新日期/Last Update: 1900-01-01