﻿ 基于集料空间结构特征的抗车辙性能分析 Analysis of Rutting Resistance Performance Based on Structural Characteristics of Aggregate Space

Open Journal of Transportation Technologies
Vol. 08  No. 04 ( 2019 ), Article ID: 31419 , 7 pages
10.12677/OJTT.2019.84031

Analysis of Rutting Resistance Performance Based on Structural Characteristics of Aggregate Space

Lei Feng, Xinrong Li*

Guilin University of Electronic Technology, Guilin Guangxi

Received: Jul. 1st, 2019; accepted: Jul. 18th, 2019; published: Jul. 25th, 2019

ABSTRACT

In order to analyze the rutting resistance performance of different asphalt mixtures, this paper focuses on the spatial structure characteristics of asphalt mixture and starts from the volume index basing on the results of the rutting test. The computer-aided software is used to obtain the function curve between the VMA value, the VCAratio value and the dynamic stability DS and the 60 minutes rut depth of different asphalt mixture types. The trend of the change of the function curve was analyzed to evaluate the rutting resistance performance of different asphalt mixtures. And the continuous change law between the volume index of asphalt mixture and the rutting resistance performance is obtained, which provides the data support for subsequent related researches.

Keywords:Asphalt Mixture, Spatial Structure, Rutting Resistance Performance, Rutting Test

1. 国内外研究现状

2. 沥青混合料空间结构类型与体积指标

3. 车辙试验

3.1. 试验思路与材料准备

Table 1. VCA indicators of five asphalt mixtures

Table 2. VMA results of five asphalt mixtures

Table 3. Porosity of five asphalt mixtures

3.2. 试验条件

3.3. 试验数据整合

Figure 1. Dynamic stability of different

Figure 2. Different types of asphalt mixture types of asphalt mixture 60 minutes rut depth

Figure 3. DS-VMA

Figure 4. DS-VCAratio

Figure 5. 60 minutes rut depth—VMA

Figure 6. 60 minutes rut depth—VCAratio

4. 抗车辙性能分析评价

5. 结语

1) 当VMA值不同，沥青混合料的抗车辙性能对其敏感性也不同，且变化较大，结果表明3点到4点之间的变化速度是最快的。

2) VCAratio值与1的大小关系对抗车辙性能具有较大的影响，整体趋势上，随VCAratio的减小，混合料的抗车辙性能逐渐增强，在实际应用中可利用这一相关关系保障路面的抗车辙性能。

3) 从实验结果可知，三种空间结构抵抗高温变形的能力由强到弱的顺序为：骨架密实型，骨架空隙型，悬浮密实型；不同等级路面或不同功能路面层可以选用不同材料，以达到工程要求的经济目的。

4) 在实际工程中，文中所给出的函数变化曲线图可以作为变化规律，其变化的快慢即相应的函数曲线变化率可以反应不同体积指标对抗车辙性能的敏感性。这一点很有利用价值，可以通过其来控制抗车辙性能的变化。目前在国内外，对沥青路面的抗车辙性能的研究长期以来虽一直在进行，但车辙病害却仍然没有得到实质的解决。还需不断积极探索，使相关研究工作进一步开展。

Analysis of Rutting Resistance Performance Based on Structural Characteristics of Aggregate Space[J]. 交通技术, 2019, 08(04): 255-261. https://doi.org/10.12677/OJTT.2019.84031

1. 1. 孟昕. 高速公路沥青路面车辙等早期病害防治的研究[D]: [硕士学位论文]. 长春: 吉林大学, 2008.

2. 2. 吕伟民, 孙大权. 沥青路面早期车辙原因分析与防治对策[J]. 石油沥青, 2014, 37(4): 16-18.

3. 3. 王端宜, 黎侃, 蔡旭. 基于集料接触特性的沥青混合料抗车辙性能评价[J]. 华南理工大学学报(自然科学版), 2012, 40(11): 121-126+154.

4. 4. 张德育, 白桃, 黄晓明, 等. 沥青混合料永久变形过程中粗集料空间运动分析[J]. 建筑材料学报, 2015, 18(3): 421-427.

5. 5. Atul Narayan, S.P., Little, D.N. and Rajagopal, K.R. (2014) Analysis of Rutting Prediction Criteria Using a Nonlinear Viscoelastic Model. Journal of Materials in Civil Engineering, 27, Article ID: 04014137. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001078

6. 6. Javilla, B. and Mo, L. (2017) Systematic Comparison of Two-Stage Analytical Rutting Models of Asphalt Mixtures. Construction and Building Materials, 153, 716-727. https://doi.org/10.1016/j.conbuildmat.2017.07.083

7. 7. 邱颖峰, 许志鸿, 黄启舒. 级配对沥青混合料高温稳定性影响的研究[J]. 重庆交通学院学报, 2007, 26(2): 10-15.

8. 8. 中华人民共和国行业部标准.《公路工程集料试验规程》(JTGF40-2004) [S]. 北京: 人民交通出版社, 2004.

9. NOTES

*通讯作者。