石灰岩与玄武岩集料SMA高温蠕变特性试验研究

山东大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (2): 70-75.

石灰岩与玄武岩集料SMA高温蠕变特性试验研究

曹卫东,冯志刚,刘树堂,任鹏

山东大学土建与水利学院, 山东济南 250061

收稿日期:2012-11-19 出版日期:2013-04-20 发布日期:2012-11-19
作者简介:曹卫东(1972- ),男,山东济宁人,副教授,博士,主要研究方向为道路工程材料与路面结构.E-mail:cwd2001@sdu.edu.cn
基金资助:
山东省优秀中青年科学家科研奖励基金资助项目(BS2010CL034)

Experimental research on high temperature creep property of stone matrix asphalt mixtures using basalt and limestone aggregates

CAO Wei-dong, FENG Zhi-gang, LIU Shu-tang, REN Peng

School of Civil Engineering, Shandong University, Jinan 250061, China

Received:2012-11-19 Online:2013-04-20 Published:2012-11-19

摘要/Abstract

摘要：

为对比石灰岩与玄武岩两种岩性集料对SMA(stone mastic asphalt)混合料高温性能的影响,采用玄武岩、石灰岩两种岩性集料配制了3种组合SMA混合料:(1)玄武岩集料SMA,粗、细集料全部采用玄武岩;(2)石灰岩集料SMA,粗、细集料全部采用石灰岩;(3)玄武岩与石灰岩混合集料SMA,即粗集料为玄武岩,细集料为石灰岩。通过弯曲蠕变试验评价了3种SMA混合料的高温稳定性,建立了相应的Burgers模型,并分析了不同集料组合对其高温性能的影响。结果表明,玄武岩集料SMA的高温性能最优,其次为玄武岩与石灰岩混合集料SMA,最后为石灰岩集料SMA。以弯曲蠕变速率为指标进行的方差分析表明,玄武岩集料SMA与石灰岩集料SMA二者的高温性能有显著性差异,而玄武岩集料SMA与玄武岩石灰岩混合集料SMA的高温性能无显著性差异。

关键词: 玄武岩, 石灰岩, SMA, 弯曲蠕变, 高温性能

Abstract:

The impact on the high temperature property of stone matrix asphalt mixtures using basalt and limestone aggregates were comparatively studied. Three kinds of SMA mixtures were fabricated using basalt and limestone aggregates, basalt coarse and fine aggregates named B-SMA, else limestone coarse and fine aggregates, named L-SMA, basalt coarse aggregates and limestone fine aggregates, named BL-SMA. The high temperature property of the three kinds of SMA was evaluated and the corresponding Burgers model was established through the bending creep test. Also, the effects on the high temperature proferty of the different combinations of the two kinds of aggregates were analyzed. The results indicated that B-SMA showed the best high temperature property, followed by BL-SMA and L-SMA in sequence The results of the variance analysis on bending creep rate showed that the high temperature property differences between B-SMA and BL-SMA were statistically significant. However, the differences between B-SMA and BL-SMA were insignificant.

Key words: basalt aggregate, limestone aggregate, stone mastic asphalt (SMA), bending creep, high temperature property

中图分类号:

U416

曹卫东,冯志刚,刘树堂,任鹏. 石灰岩与玄武岩集料SMA高温蠕变特性试验研究[J]. 山东大学学报(工学版), 2013, 43(2): 70-75.

CAO Wei-dong, FENG Zhi-gang, LIU Shu-tang, REN Peng. Experimental research on high temperature creep property of stone matrix asphalt mixtures using basalt and limestone aggregates[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2013, 43(2): 70-75.

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