Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (7): 2078-2088.doi: 10.13229/j.cnki.jdxbgxb.20210991

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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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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

CLC Number: 

  • U414.1

Table 1

Basic properties of two high viscosity modifiers"

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

Fig.1

Appearance of two types of high viscositymodifiers"

Fig.2

Process flow for preparing high viscosity modified asphalt"

Fig.3

TEM scanning graphs of base asphalt and twotypes of high viscosity modified asphalts"

Table 2

General performance properties of base asphalt and two types of high viscosity asphalts"

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

Fig.4

Relationship between G* and T of two types ofhigh viscosity asphalts"

Fig.5

Relationship between δ and T of two types ofhigh viscosity asphalts"

Fig.6

Relationship between G*/sinδ and T of twotypes of high viscosity asphalts"

Fig.7

Relationship between R0.1and T of different two types of high viscosity asphalts at 0.1 kPa"

Fig.8

Relationship between R3.2 and T of two types of high viscosity asphalts at 3.2 kPa"

Fig.9

Relationship between Jnr0.1 and T for two types of high viscosity asphalts at 0.1 kPa"

Fig.10

Relationship between Jnr3.2 and T for two types of high viscosity asphalts at 3.2 kPa"

Fig.11

ZSV values of two types of high viscosity asphalts"

Table 3

ZSV fitting results of two types of high viscosity asphalts"

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

Table 4

AC-13 Grading"

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

Fig.12

Rutting test results of two types of high viscosity asphalt mixtures"

Table 5

Parameters for grey relational analysis"

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

Fig.13

Grey Correlation degree of various factors based on the dynamic stability of rutting test at 60 ℃"

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