| 排水性沥青混合料体积参数特性 |
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| 引用本文： | 张铭铭,郝培文. 排水性沥青混合料体积参数特性[J]. 长安大学学报(自然科学版), 2011, 0(6): 6-10 |
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| 作者姓名： | 张铭铭 郝培文 |
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| 作者单位： | 长安大学特殊地区公路工程教育部重点实验室; |
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| 基金项目： | 云南省交通科技项目(2007(A)2-04) |
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| 摘 要： | 在贝雷法基础上,采用"预留空隙率"设计排水性沥青混合料的级配;通过调整"预留空隙率"、"粗集料体积之比"和"设计密度"3个参数,利用统计方法,研究了3个参数与排水性沥青混合料体积参数之间的关系;并采用粗集料骨架间障率(VCAratio)来评价排水性沥青混合料的骨架紧密程度。结果表明,贝雷法设计参数中预留空隙率和设计密度变化对排水性沥青混合料的体积参数有显著影响,而粗集料体积之比对其无显著影响;粗集料体积之比和设计密度对混合料骨架影响较大,预留空隙率对混合料骨架影响较小。
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| 关 键 词： | 道路工程 排水性沥青混合料 级配设计 体积参数 预留空隙率 贝雷法 |
Study on volumetric parameters in porous asphalt mixture |
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| ZHANG Ming-ming,HAO Pei-wen. Study on volumetric parameters in porous asphalt mixture[J]. JOurnal of Chang’an University:Natural Science Edition, 2011, 0(6): 6-10 |
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| Authors: | ZHANG Ming-ming HAO Pei-wen |
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| Affiliation: | ZHANG Ming-ming,HAO Pei-wen(Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang'an University,Xi'an 710064,Shaanxi,China) |
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| Abstract: | Based on the Bailey method for aggregate grading design and evaluation,the parameter named reserved-voidage was used in porous asphalt method design.Through adjusting the parameters such as reserved-voidage,volume-ratio of coarse aggregates,design density of coarse aggregates,the relationship between the three parameters and volumetric parameters was analyzed.The value of the VCAratio was utilized to evaluate the condition of stone-on-stone contact in the porous asphalt mixture.The results show that the res... |
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| Keywords: | road engineering porous asphalt mixture gradation design volumetric parameter reserved-voidage Bailey method |
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