Investigation on Preparation Process and Storage Stability of Modified Asphalt Binder by Grafting Activated Crumb Rubber
Abstract
:1. Introduction
2. Experimental
2.1. Materials
2.2. Grafting Activation of Crumb Rubber
2.3. Preparation of A-R-G
2.4. Test Methods
3. Results and Discussion
3.1. Influence of Different Factors on the High Temperature Performance
3.2. Influence of Different Factors on the Low Temperature Performance
3.3. Influence Extent of Different Factors on the Properties of A-G-R
3.4. Storage Stability
3.5. Morphology
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Item | Units | Test Results | Standard |
---|---|---|---|
Penetration (25 °C, 100 g, 5s) | 0.1 mm | 78.1 | JTG-T0604-2011 |
Softening temperature | °C | 44.9 | JTG -T0606-2011 |
Ductility (5 °C, 5 cm/min) | cm | >100 | JTG-T0605-2011 |
Kinematic viscosity (135 °C) | Pa s | 108.5 | JTG-T0625-2011 |
Density | g/cm3 | 1.009 | JTG-T0603-2011 |
RTFO treated at 163 °C for 85 min | |||
Quality change | % | −0.063 | JTG-T0610-1-2011 |
Residual penetration ratio (25 °C) | % | 57.5 | JTG-T0610-2-2011 |
Residual ductility (5 °C) | cm | 8.9 | JTG-T0605-2011 |
Item | Result | Standard |
---|---|---|
Water content (%) | 0.98 | HG/TXXX-2001 7.2.2 |
Ash content (%) | 9.2 | GB4498 |
Acetone extract content (%) | 13.5 | GB/T3516 |
Density (g/cm3) | 0.95 | GB/T533 |
Tensile strength (MPa) | 6.5 | GB/T528 |
Elongation at break (%) | 860 | GB/T52 |
Number | Factors and Levels | ||
---|---|---|---|
Content (%) | Shear Temperature (°C) | Shear Time (min) | |
1 | 10 | 150–170 | 30 |
2 | 10 | 170–190 | 90 |
3 | 10 | 190–210 | 60 |
4 | 15 | 150–170 | 90 |
5 | 15 | 170–190 | 60 |
6 | 15 | 190–210 | 30 |
7 | 20 | 150–170 | 60 |
8 | 20 | 170–190 | 30 |
9 | 20 | 190–210 | 90 |
Number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
---|---|---|---|---|---|---|---|---|---|
Softening point/ | 54.3 | 56.0 | 54.9 | 56.5 | 56.5 | 57.8 | 57.0 | 59.8 | 59.2 |
175 °C Viscosity/MPa·s | 333.3 | 470.5 | 303.7 | 771.6 | 715.9 | 689.8 | 1242.0 | 1595.6 | 1375.8 |
60 °C rutting factor/Pa | 3523.0 | 3633.3 | 3561.9 | 3665.7 | 3665.7 | 3750.1 | 3698.2 | 3879.8 | 3840.9 |
Number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
---|---|---|---|---|---|---|---|---|---|
5 °C Ductility/mm | 61.8 | 62.6 | 61.5 | 73 | 71.3 | 72.9 | 75.6 | 82 | 84.8 |
S/MPa | 246 | 231 | 238 | 210 | 233 | 213 | 208 | 195 | 185 |
m | 0.300 | 0.302 | 0.296 | 0.318 | 0.311 | 0.314 | 0.322 | 0.328 | 0.332 |
Item | Average Value of Range | Significant Sequence of Factor Influence | ||
---|---|---|---|---|
Content X | Shear Temperature Y | Shear Time Z | ||
Softening point/°C | 3.6 | 1.5 | 1.2 | X > Y > Z |
175 °C viscosity/MPa·s | 1035.3 | 145 | 119 | X > Y > Z |
60 °C rutting factor/Pa | 233.6 | 97.3 | 75.7 | X > Y > Z |
5 °C Ductility/mm | 18.8 | 3 | 4 | X > Z > Y |
S | 42.3 | 9.3 | 17.6 | X > Z > Y |
m | 0.028 | 0.000667 | 0.007667 | X > Z > Y |
Factor | Softening Point | 175 °C Viscosity | 60 °C Rutting Resistance Factor | |||
---|---|---|---|---|---|---|
F | Significance | F | Significance | F | Significance | |
Content | 8.383 | 0.018 | 59.928 | 0.000 | 8.384 | 0.018 |
Temperature | 0.557 | 0.600 | 0.071 | 0.933 | 0.557 | 0.600 |
Time | 0.324 | 0.735 | 0.049 | 0.952 | 0.324 | 0.735 |
Factor | 5 °C Ductility | S | m | |||
F | Significance | F | Significance | F | Significance | |
Content | 34.131 | 0.001 | 11.685 | 0.009 | 37.596 | 0.000 |
Temperature | 0.070 | 0.934 | 0.138 | 0.874 | 0.002 | 0.998 |
Time | 0.136 | 0.876 | 0.482 | 0.639 | 0.225 | 0.805 |
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Xie, J.; Yang, Y.; Lv, S.; Peng, X.; Zhang, Y. Investigation on Preparation Process and Storage Stability of Modified Asphalt Binder by Grafting Activated Crumb Rubber. Materials 2019, 12, 2014. https://doi.org/10.3390/ma12122014
Xie J, Yang Y, Lv S, Peng X, Zhang Y. Investigation on Preparation Process and Storage Stability of Modified Asphalt Binder by Grafting Activated Crumb Rubber. Materials. 2019; 12(12):2014. https://doi.org/10.3390/ma12122014
Chicago/Turabian StyleXie, Juan, Yueming Yang, Songtao Lv, Xinghai Peng, and Yongning Zhang. 2019. "Investigation on Preparation Process and Storage Stability of Modified Asphalt Binder by Grafting Activated Crumb Rubber" Materials 12, no. 12: 2014. https://doi.org/10.3390/ma12122014