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© 《China Plastics》
© 《China Plastics》
China Plastics ›› 2025, Vol. 39 ›› Issue (9): 108-114.DOI: 10.19491/j.issn.1001-9278.2025.09.017
• Plastic and Environment • Previous Articles
YANG Fan1,2, HU Yihong3, YANG Fayong4, HU Bin5, JING Hongjun1,2, LI Haibin1,2(
)
Received:2024-09-29
Online:2025-09-26
Published:2025-09-22
CLC Number:
YANG Fan, HU Yihong, YANG Fayong, HU Bin, JING Hongjun, LI Haibin. Effect of modified waste PET pellets on performance of asphalt and its mixture[J]. China Plastics, 2025, 39(9): 108-114.
| 项目 | 技术要求 | 试验结果 | 试验方法 |
|---|---|---|---|
| 针入度(25 ℃,5 s,100 g)/0.1 mm | 60~80 | 70.6 | T 0604—2011 |
| 软化点(环球法)/℃ | ≥46 | 53.5 | T 0606—2011 |
| 延度(10 ℃)/cm | ≥20 | 34 | T 0605—2011 |
| 延度(15 ℃)/cm | ≥100 | >100 | T 0605—2011 |
| 密度/g·cm-3 | - | 1.023 | T 0603—2011 |
| 溶解度/% | ≥99.5 | 99.97 | T 0607—2011 |
| 动力黏度(60 ℃)/Pa·s | ≥180 | 224.6 | T 0620—2000 |
| 闪点/℃ | ≥260 | 306.3 | T 0611—2011 |
| 与粗集料的黏附性 | ≥4级 | 4级 | T 0616—1993 |
| 项目 | 技术要求 | 试验结果 | 试验方法 |
|---|---|---|---|
| 针入度(25 ℃,5 s,100 g)/0.1 mm | 60~80 | 70.6 | T 0604—2011 |
| 软化点(环球法)/℃ | ≥46 | 53.5 | T 0606—2011 |
| 延度(10 ℃)/cm | ≥20 | 34 | T 0605—2011 |
| 延度(15 ℃)/cm | ≥100 | >100 | T 0605—2011 |
| 密度/g·cm-3 | - | 1.023 | T 0603—2011 |
| 溶解度/% | ≥99.5 | 99.97 | T 0607—2011 |
| 动力黏度(60 ℃)/Pa·s | ≥180 | 224.6 | T 0620—2000 |
| 闪点/℃ | ≥260 | 306.3 | T 0611—2011 |
| 与粗集料的黏附性 | ≥4级 | 4级 | T 0616—1993 |
| 材料名称 | 配合比/% | 通过以下筛孔(mm)的质量百分率/% | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 19 | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 | ||
| 11⁃16碎石 | 28 | 100.0 | 99.3 | 67.3 | 13.2 | 2.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| 6⁃11碎石 | 24 | 100.0 | 100.0 | 95.1 | 70.2 | 6.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| 4⁃6碎石 | 17 | 100.0 | 100.0 | 99.7 | 99.4 | 47.5 | 7.3 | 5.8 | 4.8 | 4.1 | 1.3 | 2.4 |
| 0⁃4机制砂 | 28 | 100.0 | 100.0 | 100.0 | 100.0 | 99.3 | 73.8 | 58.4 | 42.2 | 26.4 | 17.4 | 7.1 |
| 矿粉 | 3 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 99.2 | 93.7 | 77.6 |
| 合成级配 | 100.0 | 99.8 | 89.6 | 68.4 | 41.1 | 25.6 | 21.1 | 16.4 | 11.8 | 8.6 | 5.4 | |
| 中值 | 100.0 | 95.0 | 85.0 | 70.5 | 43.0 | 28.5 | 19.5 | 16.0 | 11.5 | 8.0 | 5.0 | |
| 级配上限 | 100.0 | 90.0 | 80.0 | 65.0 | 38.0 | 23.0 | 15.0 | 12.0 | 8.0 | 6.0 | 4.0 | |
| 级配下限 | 100.0 | 100.0 | 90.0 | 76.0 | 48.0 | 34.0 | 24.0 | 20.0 | 15.0 | 10.0 | 6.0 | |
| 材料名称 | 配合比/% | 通过以下筛孔(mm)的质量百分率/% | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 19 | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 | ||
| 11⁃16碎石 | 28 | 100.0 | 99.3 | 67.3 | 13.2 | 2.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| 6⁃11碎石 | 24 | 100.0 | 100.0 | 95.1 | 70.2 | 6.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| 4⁃6碎石 | 17 | 100.0 | 100.0 | 99.7 | 99.4 | 47.5 | 7.3 | 5.8 | 4.8 | 4.1 | 1.3 | 2.4 |
| 0⁃4机制砂 | 28 | 100.0 | 100.0 | 100.0 | 100.0 | 99.3 | 73.8 | 58.4 | 42.2 | 26.4 | 17.4 | 7.1 |
| 矿粉 | 3 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 99.2 | 93.7 | 77.6 |
| 合成级配 | 100.0 | 99.8 | 89.6 | 68.4 | 41.1 | 25.6 | 21.1 | 16.4 | 11.8 | 8.6 | 5.4 | |
| 中值 | 100.0 | 95.0 | 85.0 | 70.5 | 43.0 | 28.5 | 19.5 | 16.0 | 11.5 | 8.0 | 5.0 | |
| 级配上限 | 100.0 | 90.0 | 80.0 | 65.0 | 38.0 | 23.0 | 15.0 | 12.0 | 8.0 | 6.0 | 4.0 | |
| 级配下限 | 100.0 | 100.0 | 90.0 | 76.0 | 48.0 | 34.0 | 24.0 | 20.0 | 15.0 | 10.0 | 6.0 | |
| 沥青混合料类型 | RB抗弯拉强度/MPa | SB弯曲劲度模量/MPa | εB抗弯拉应变/µɛ | εB抗弯拉应变规范要求/µɛ |
|---|---|---|---|---|
| PET(6 %)改性沥青混合料 | 7.1 | 3489.4 | 2 564.1 | ≥2 500 |
| 基质沥青混合料 | 7.5 | 3361.2 | 2 711.4 | ≥2 000 |
| 沥青混合料类型 | RB抗弯拉强度/MPa | SB弯曲劲度模量/MPa | εB抗弯拉应变/µɛ | εB抗弯拉应变规范要求/µɛ |
|---|---|---|---|---|
| PET(6 %)改性沥青混合料 | 7.1 | 3489.4 | 2 564.1 | ≥2 500 |
| 基质沥青混合料 | 7.5 | 3361.2 | 2 711.4 | ≥2 000 |
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