吉林大学学报(工学版) ›› 2023, Vol. 53 ›› Issue (7): 2078-2088.doi: 10.13229/j.cnki.jdxbgxb.20210991

• 交通运输工程·土木工程 • 上一篇    

基于灰色关联分析的树脂与弹性体高黏沥青高温性能评价

周正峰1,2(),于晓涛1,2,陶雅乐1,2,郑茂3,颜川奇1,2()   

  1. 1.西南交通大学 土木工程学院，成都 610031
    2.西南交通大学 道路工程四川省重点实验室，成都 610031
    3.四川省交通建设集团股份有限公司，成都 610047
  • 收稿日期:2021-09-30 出版日期:2023-07-01 发布日期:2023-07-20
  • 通讯作者: 颜川奇 E-mail:zhouzf126@126.com;ycq@swjtu.edu.cn
  • 作者简介:周正峰（1981-），男，副教授，博士.研究方向：道路与机场工程.E-mail：zhouzf126@126.com
  • 基金资助:
    国家自然科学基金项目(51878575);国家自然科学基金青年基金项目(52008353)

High-temperature performance evaluation of resin and elastomer high viscosity asphalt based on grey correlation analysis

Zheng-feng ZHOU1,2(),Xiao-tao YU1,2,Ya-le TAO1,2,Mao ZHENG3,Chuan-qi YAN1,2()   

  1. 1.School of Civil Engineering，Southwest Jiaotong University，Chengdu 610031，China
    2.Highway Engineering Key Laboratory of Sichuan Province，Southwest Jiaotong University，Chengdu 610031，China
    3.Sichuan Transportation Construction Group Co. ，Ltd. ，Chengdu 610047，China
  • Received:2021-09-30 Online:2023-07-01 Published:2023-07-20
  • Contact: Chuan-qi YAN E-mail:zhouzf126@126.com;ycq@swjtu.edu.cn

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摘要：

通过透射电子显微镜扫描（TEM）、流变试验，以及常规性能测试，分析树脂高黏沥青与弹性体高黏沥青的路用性能及改性机理。采用流变仪分别进行不同掺量（3%、5%、8%）下两种高黏沥青的多重应力蠕变恢复试验（MSCR）、温度扫描试验和动态频率扫描试验，并采用Cross模型和Carreau模型对动态频率扫描结果进行拟合，得到沥青60 ℃零剪切黏度（ZSV）。进一步对高黏沥青胶结料试验指标与车辙动稳定度进行灰色关联分析。结果表明：树脂类高黏改性沥青主要由内部形成的结晶体起到增黏效果，弹性体改性沥青由改性剂与基质沥青形成的三维弹性结构起到增黏效果；树脂类高黏改性沥青在线性弹性区间有很好的改性效果，但在非线性弹性区间由于结晶体熔化，改性效果不如弹性体高黏沥青；Cross模型得到的ZSV拟合值大于Carreau模型；高黏沥青软化点和蠕变恢复率与沥青混合料车辙动稳定度有显著相关性，可以很好地评价高温路用性能，而不可恢复蠕变柔量和相位角的相关性较差。

关键词: 道路工程, 高黏改性沥青, 流变试验, 动稳定度, 灰色关联

Abstract:

The pavement performance and modification mechanism of resin-based high-viscosity asphalt and elastomer-based high-viscosity asphalt were analyzed using various methods including transmission electron microscope scanning（TEM）， rheological tests， and regular performance tests. The multiple stress creep recovery test（MSCR）， temperature sweep test， and dynamic frequency sweep test were conducted on the two high-viscosity asphalts at different contents（3%，5%，8%） with the rheometer. The results of the dynamic frequency sweep were fitted using the Cross model and the Carreau model respectively to determine the zero shear viscosity（ZSV） of the asphalt at 60°C. Furthermore， grey correlation analysis was applied to assess the relationship between the test indexes of the high-viscosity asphalt binder and its rutting stability. The findings indicate that the resin-based high-viscosity modified asphalt is primarily composed of internally formed crystals that can enhance viscosity， while the elastomer-based modified asphalt exhibits a three-dimensional elastic structure created by the modifier and base asphalt to increase viscosity. The resin-based high-viscosity modified asphalt appears a favorable modification effect in the linear elastic interval， but in the nonlinear elastic interval， its modification effect is inferior to that of the elastomer-based high-viscosity asphalt due to crystal melting. The ZSV fitting value obtained from the Cross model is higher than that from the Carreau model. The softening point and creep recovery rate of the high-viscosity asphalt exhibit a significant correlation with the rutting stability of the asphalt mixtures， which is appropriate to evaluate the high-temperature pavement performance. However， the non-recoverable creep compliance and phase angle show a relatively weak correlation.

Key words: road engineering, high viscosity modified asphalt, rheological test, dynamic stability, grey correlation

中图分类号: 

  • U414.1

表1

2种高黏改性剂基本参数"

性 质测试方法热塑性树脂类热塑性弹性体
熔滴点/℃ASTM D?3054110.8-

熔融指数/

（g·10 min-1）

GB/T 3682-3.12
针入度/0.1mmASTM D?5<0.5<0.5
密度/（g·mL-1）ASTM D?15050.9980.914
灰分/%GB/T 9345.1―2008/0.9
黏度@150 ℃/（Pa·s）T0625?201110500/
产品形状-粉末粉末
颜色-白色蓝色

图1

两种高黏改性剂外观图"

图2

高黏改性沥青制备流程"

图3

基质沥青和2种高黏沥青TEM扫描图像"

表2

基质沥青和2种高黏沥青的常规性质技术指标"

沥青试样针入度（5 s，25 ℃）/0.1 mm软化点/℃延度（5 ℃）/cm布氏旋转黏度/（Pa·s）
135 ℃175 ℃
E7065.648.600.580.16
E70+3%树脂36.373.66.70.620.12
E70+5%树脂34.691.33.70.630.13
E70+8%树脂31.795.82.10.690.14
E70+3%弹性体55.658.351.41.190.26
E70+5%弹性体58.461.860.71.560.41
E70+8%弹性体58.192.465.33.100.69

图4

两种高黏沥青复合模量（G*）与温度（T）的关系"

图5

两种高黏沥青相位角（δ）与温度（T）的关系"

图6

两种高黏沥青车辙因子（G*/sinδ）与温度（T）的关系"

图7

两种高黏沥青0.1 kPa下蠕变恢复率（R0.1）与温度的关系"

图8

两种高黏沥青3.2 kPa下蠕变恢复率（R3.2）与温度的关系"

图9

两种高黏沥青0.1 kPa下不可蠕变恢复蠕变柔量（Jnr0.1）与温度的关系"

图10

两种高黏沥青3.2 kPa下不可蠕变恢复蠕变柔量（Jnr3.2）与温度的关系"

图11

两种不同掺量高黏沥青的ZSV值"

表3

两种不同掺量高黏沥青ZSV拟合结果"

沥青试样Cross模型Carreau模型

ZSV/

（Pa·s）

R2

ZSV/

（Pa·s）

R2
E702.96E+020.9952.98E+020.970
E70+3%树脂1.21E+070.9791.09E+050.997
E70+5%树脂5.62E+070.9744.57E+050.981
E70+8%树脂1.26E+080.9753.50E+050.976
E70+3%弹性体2.13E+050.9893.26E+030.989
E70+5%弹性体1.40E+060.9851.06E+040.985
E70+8%弹性体1.07E+070.9833.01E+040.984

表4

AC-13级配"

筛孔尺寸/mm通过率/%筛孔尺寸/mm通过率/%
161001.1826.5
13.2950.619
9.576.50.313.5
4.75530.1510
2.36370.0756

图12

两种高黏沥青混合料车辙试验结果"

表5

灰色关联分析参数"

序列参数E70

E70+3%

树脂

E70+5%

树脂

E70+8%

树脂

E70+3%

弹性体

E70+5%

弹性体

E70+8%

弹性体

X0动稳定度892231953718457151939816799
X1针入度65.636.334.631.755.658.458.1
X2软化点48.673.691.395.858.361.892.4
X3延度06.73.72.151.460.765.3
X4布氏旋转黏度135 ℃0.580.620.630.691.191.563.1
X5布氏旋转黏度175 ℃0.160.120.130.140.260.410.69
X6R0.11.2581.7396.3999.0230.2881.7099.04
X7R3.2-0.147.5515.4020.618.3538.7666.41
X8Jnr0.16.86390.16830.00330.00192.60320.48260.0215
X9Jnr3.27.43532.17161.14860.52804.52542.01180.6030
X10G*2707.7411718.820821.540271.53204.014338.696025.68
X11δ87.866.656.352.680.572.259.5
X12G*/sinδ2.709812.768025.038750.66533.24884.55726.9952
X13ZSV?Cross2.96E+021.21E+075.62E+071.26E+082.13E+051.40E+061.07E+07
X14ZSV?Carreau2.98E+021.09E+054.57E+053.50E+053.26E+031.06E+043.01E+04

图13

基于60 ℃车辙试验动稳定度的各因素灰色关联度"

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