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集料级配对沥青混凝土混合料体积参数及车辙性能的影响

Impacts of Aggregate Gradation on the Volumetric Parameters and Rutting Performance of Asphalt Concrete Mixtures.

作者信息

Li Weihua, Cao Weidong, Ren Xianfu, Lou Shurong, Liu Shutang, Zhang Jizhe

机构信息

Shandong High Speed Group Weifang Development Co., Ltd., Weifang 262500, China.

School of Qilu Transportation, Shandong University, Jinan 250002, China.

出版信息

Materials (Basel). 2022 Jul 13;15(14):4866. doi: 10.3390/ma15144866.

DOI:10.3390/ma15144866
PMID:35888333
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9315634/
Abstract

The main objective of this study was to determine the effect of aggregate gradation (AG) on the volumetric parameters (VPs) and rutting performance (RP) of asphalt concrete (AC) mixtures. The boundary sieve (BS) between fine and coarse aggregates was 2.36 mm size, and 15 gradation curves of three nominal maximum aggregate sizes (13.2, 19.0, and 26.5 mm) were designed based on the percentage passing of the BS. A vibrating compaction test of coarse aggregates, Marshall compaction and wheel-tracking tests of AC mixtures with various gradations were conducted. It was found that AG had crucial effects on the VPs and RP of AC mixtures. The AC mixture can be designed as a skeletal dense structure provided that the percentage passing of the BS is appropriate. More notably, AC mixtures with a skeletal dense structure showed the best rutting resistance performance. Therefore, it is important to optimize AG for enhancing the high-temperature RP of AC mixtures.

摘要

本研究的主要目的是确定集料级配（AG）对沥青混凝土（AC）混合料体积参数（VPs）和车辙性能（RP）的影响。细集料和粗集料之间的边界筛（BS）尺寸为2.36 mm，基于BS的通过率设计了三种公称最大集料尺寸（13.2、19.0和26.5 mm）的15条级配曲线。对粗集料进行了振动压实试验，对不同级配的AC混合料进行了马歇尔压实和车辙试验。结果表明，AG对AC混合料的VPs和RP有至关重要的影响。只要BS的通过率合适，AC混合料可设计成骨架密实结构。更值得注意的是，具有骨架密实结构的AC混合料表现出最佳的抗车辙性能。因此，优化AG对于提高AC混合料的高温RP很重要。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/3932ac58ba87/materials-15-04866-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/e101ce39e549/materials-15-04866-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/5edb6e433ae8/materials-15-04866-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/ea0576bd516e/materials-15-04866-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/e8981878c921/materials-15-04866-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/3932ac58ba87/materials-15-04866-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/e101ce39e549/materials-15-04866-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/f02d82bd8392/materials-15-04866-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/3b593ec55bbd/materials-15-04866-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/2accc63f4965/materials-15-04866-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/ea70f827081d/materials-15-04866-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/5edb6e433ae8/materials-15-04866-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/ea0576bd516e/materials-15-04866-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/e8981878c921/materials-15-04866-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cd83/9315634/3932ac58ba87/materials-15-04866-g009.jpg

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引用本文的文献

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Materials (Basel). 2022 Oct 15;15(20):7190. doi: 10.3390/ma15207190.